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Anhui Dexinjia Biopharm Co., Ltd

As a leading and professional manufacturer of APIs and API intermediates in China,Anhui Dexinjia Biopharm Co., Ltd founded in 2006, Except for the R&D center, our company has built a close cooperation relation with Chinese Academy of Sciences,

N-Boc-piperazine with fast delivery on hot selling manufacturer

Cas:57260-71-6

Min.Order:1 Gram

FOB Price: $90.0 / 100.0

Type:Manufacturers

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

tert-Butyl 1-piperazinecarboxylate Manufacturer/High quality/Best price/In stock

Cas:57260-71-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Jinan Finer Chemical Co., Ltd

Our Services 1. Certificate Of Analysis (COA) 2. Material Safety Data Sheet (MSDS) 3. Route of synthesis (ROS) 4. Method of Aanlysis (MOA)

tert-Butyl tetrahydropyrazine-1(2H)-carboxylate

Cas:57260-71-6

Min.Order:1 Gram

FOB Price: $8.0

Type:Lab/Research institutions

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White or almost white crystalline powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum

tert-Butyl 1-piperazinecarboxylate Cas 57260-71-6

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. After many years of efforts, we have established stable

boc-piperazine

Cas:57260-71-6

Min.Order:1 Metric Ton

FOB Price: $1.0 / 2.0

Type:Manufacturers

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Hangzhou Think Chemical Co. Ltd

tert-Butyl 1-piperazinecarboxylate CAS No.:57260-71-6 Name: tert-Butyl 1-piperazinecarboxylate Synonyms: tert-Butyl tetrahydropyrazine-1(2H)-carbox

High purity tert-Butyl 1-piperazinecarboxylate CAS No.:57260-71-6

Cas:57260-71-6

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Other

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Henan Allgreen Chemical Co.,Ltd

T he company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality service Appearance:Colorless

1-(tert-Butoxycarbonyl)piperazine

Cas:57260-71-6

Min.Order:100 Gram

Negotiable

Type:Manufacturers

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply tert-butyl piperazine-1-carboxylate

Cas:57260-71-6

Min.Order:1

Negotiable

Type:Other

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory Price OLED 99% 57260-71-6 1-Boc-piperazine Manufacturer

Cas:57260-71-6

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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ANQING CHICO PHARMACEUTICAL CO.,LTD.

High quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours. 2.Best quality in your requirement. 3.We pay more attention on delivery time, and usually ship on time. 4.Free samples will be provided. 5.Ensure specifications an

tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:1 Kilogram

FOB Price: $5.0 / 10.0

Type:Manufacturers

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Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu

lower price High quality N-Boc-piperazine

Cas:57260-71-6

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Manufacturers

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Chemwill Asia Co., Ltd.

tert-Butyl 1-piperazinecarboxylate CAS 57260-71-6 In stock

Cas:57260-71-6

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

tert-Butyl 1-piperazinecarboxylate Basic information Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business

CAS:57260-71-6 tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Professional Manufacturer CAS 57260-71-6 with best quality

Cas:57260-71-6

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product name: 1-boc-piperazine CAS : 57260-71-6;146398-94-9;143238-38-4 Appearance: White solid Content: 99% Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Organic synthesis Transportat

1-boc-piperazine

Cas:57260-71-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Hubei Langyou International Trading Co., Ltd

1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta

57260-71-6 tert-Butyl 1-piperazinecarboxylat

Cas:57260-71-6

Min.Order:10 Gram

Negotiable

Type:Other

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

tert-Butyl 1-piperazinecarboxylate 57260-71-6

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

tert-Butyl 1-piperazinecarboxylate/ LIDE PHARMA- Factory supply / Best price

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

tert-Butyl 1-piperazinecarboxylate CAS:57260-71-6 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high qualit

tert-Butyl 1-piperazinecarboxylate CAS:57260-71-6

Cas:57260-71-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1-BOC-PIPERAZINE CAS NO.57260-71-6

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Wuhan Kemi-Works Chemical Co., Ltd

1.Assay: 98% min 2.CAS No. 57260-71-6 3.Appearance: White or yellowish crystal 1.We have been specializing in special fine chemical for long, with strong R&D strength. 2.ISO9001. 3.We have been cooperating with oversea from Europe, US

tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:1 Gram

Negotiable

Type:Other

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Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: tert-Butyl 1-piperazinecarboxylate Synonyms: 1-Boc-piperazine ,98%;tert-Butyl 1-piperazinecarboxylate,97%;N-Boc-piperazine hydrochloride;tert-Butyl 1-piperazinecarboxylate,1-N-Boc-Piperazine;1-Boc-piperazine,tert-Butyl piperazine-1

tert-Butyl 1-piperazinecarboxylate supplier best quality

Cas:57260-71-6

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

tert-Butyl 1-piperazinecarboxylate

Cas:57260-71-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Changchun Artel lmport and Export trade company

Product Detail Minimum Order Qty. 10 Gram

low price N-BOC-PIPERAZINE high purity CAS NO.57260-71-6

Cas:57260-71-6

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Triumph International Development Limilted

Appearance: white or yellowish crystal Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:Common products

1-boc-piperazine

Cas:57260-71-6

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We have s

boc-piperazine

Cas:57260-71-6

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

N-BOC-piperazine

Cas:57260-71-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Hubei Jiutian Bio-medical Technology Co., Ltd

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tert-Butyl 1-piperazinecarboxylate CAS 57260-71-6

Cas:57260-71-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Synthetic route

C19H22F6N2O4
1448041-79-9

C19H22F6N2O4

A

3,5-bis(trifluoromethyl)benzylchloride
75462-61-2

3,5-bis(trifluoromethyl)benzylchloride

B

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With samarium diiodide; water; triethylamine In tetrahydrofuran at 20℃; Inert atmosphere;A n/a
B 99%
piperazine
110-85-0

piperazine

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
Stage #1: piperazine With 2-chlorotrityl resin; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 12h;
Stage #2: di-tert-butyl dicarbonate With triethylamine In dichloromethane at 20℃; for 4h;
Stage #3: With trifluoroacetic acid In dichloromethane
98%
With 1-methylimidazolium tetrafluoroborate at 30 - 35℃; for 0.0333333h;98%
With formic acid; acetamidine hydrochloride In methanol; water at 20℃; for 2h; Reagent/catalyst; Solvent;98.6%
1-(tert-butyl) 4-(2,2,6,6-tetramethylpiperidin-1-yl) piperazine-1,4-dicarboxylate

1-(tert-butyl) 4-(2,2,6,6-tetramethylpiperidin-1-yl) piperazine-1,4-dicarboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With copper dichloride; ascorbic acid In tetrahydrofuran; water; acetonitrile at 20℃; for 12h; Sealed tube; Sonication;95%
With sodium L-ascorbate; copper dichloride In tetrahydrofuran; water; acetonitrile at 20℃; for 12h;95%
N-(tert-butyloxycarbonyl)bis(2-chloroethyl)amine
118753-70-1

N-(tert-butyloxycarbonyl)bis(2-chloroethyl)amine

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With ammonium hydroxide at 60℃; for 5.5h; Time;94.3%
2-oxo-4-morpholinecarboxylic acidtert-butyl ester
1140502-97-1

2-oxo-4-morpholinecarboxylic acidtert-butyl ester

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With ammonia In methanol at 40℃; under 1500.15 Torr; for 2.5h; Solvent; Inert atmosphere; Autoclave;91.8%
C18H24N2O5

C18H24N2O5

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With potassium phosphate; tris(2,2-bipyridine)ruthenium(II) hexafluorophosphate; ascorbic acid In water; acetonitrile at 20℃; for 2h; Sealed tube; Irradiation; Inert atmosphere;90%
1-(tert-butyl) 4-methyl piperazine-1,4-dicarboxylate
219509-79-2

1-(tert-butyl) 4-methyl piperazine-1,4-dicarboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With L-Selectride In tetrahydrofuran at 20℃; for 48h;87%
piperazine
110-85-0

piperazine

tert-butyl phenyl carbonate
6627-89-0

tert-butyl phenyl carbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
In water at 55℃; for 24h;87%
piperazine
110-85-0

piperazine

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

A

di-tert-butyl piperazine-1,4-dicarboxylate
76535-75-6

di-tert-butyl piperazine-1,4-dicarboxylate

B

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With sodium hydroxide In water; tert-butyl alcohol at 20℃; for 1.5h; Inert atmosphere;A n/a
B 84%
With sodium hydroxide In water; tert-butyl alcohol at 25℃; for 1h;A 18 g
B 65%
In dichloromethane for 0.333333h;A n/a
B 64%
4-benzyl-piperazine-1-carboxylic acid tert-butyl ester
57260-70-5

4-benzyl-piperazine-1-carboxylic acid tert-butyl ester

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With palladium 10% on activated carbon; ammonium formate In methanol at 65℃; for 2h; Reflux;84%
With palladium 10% on activated carbon; hydrogen In methanol at 20℃;82%
palladium In methanol
tert-butyl 4-tosylpiperazine-1-carboxylate

tert-butyl 4-tosylpiperazine-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With potassium fluoride on basic alumina for 0.0833333h; Substitution; microwave irradiation;76%
piperazine
110-85-0

piperazine

bromoacetic acid tert-butyl ester
5292-43-3

bromoacetic acid tert-butyl ester

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With sodium carbonate In acetonitrile for 3h; Reflux;76%
tert-butyl 4-(methylsulfonyl)piperazine-1-carboxylate
164331-38-8

tert-butyl 4-(methylsulfonyl)piperazine-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
Stage #1: tert-butyl 4-(methylsulfonyl)piperazine-1-carboxylate With lithium diisopropyl amide In tetrahydrofuran; hexane at 0℃; for 0.25h; Inert atmosphere;
Stage #2: With oxygen In tetrahydrofuran; hexane at 20℃; for 1h;
Stage #3: With water In tetrahydrofuran; hexane
67%
piperazine
110-85-0

piperazine

N-(tert-butyloxycarbonyl) azide
1070-19-5

N-(tert-butyloxycarbonyl) azide

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
In ethanol; di-isopropyl ether; water at 15℃; for 4h;66.9%
In dichloromethane for 0.333333h; Yield given;
tert-butyl 4-((benzyloxy)carbonyl)piperazine-1-carboxylate
121370-60-3

tert-butyl 4-((benzyloxy)carbonyl)piperazine-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With L-Selectride In tetrahydrofuran at 20℃; for 120h;62%
tert-butyl 4-allylpiperazine-1-carboxylate

tert-butyl 4-allylpiperazine-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With ethylenediamine In tetrahydrofuran at 20℃; Inert atmosphere;60%
tert-butyl 4-ethoxycarbonylpiperazine-1-carboxylate

tert-butyl 4-ethoxycarbonylpiperazine-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With L-Selectride In tetrahydrofuran at 20℃; for 120h;54%
4-benzhydryl-piperazine-1-carboxylic acid tert-butyl ester

4-benzhydryl-piperazine-1-carboxylic acid tert-butyl ester

diphenylmethylpiperazine
841-77-0

diphenylmethylpiperazine

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With hydrogenchloride In 1,4-dioxane; palladium on active charcoal; water; ethyl acetate
1,4-dioxane
123-91-1

1,4-dioxane

N-(tert-butyloxycarbonyl) azide
1070-19-5

N-(tert-butyloxycarbonyl) azide

piperazine hydrochloride
7542-23-6

piperazine hydrochloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
In water
3-methylxanthine
1076-22-8

3-methylxanthine

1-Bromo-2-butyne
3355-28-0

1-Bromo-2-butyne

A

4-[7-(2-butynyl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester
586408-07-3

4-[7-(2-butynyl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester

B

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With N-chloro-succinimide; potassium carbonate In N,N-dimethyl-formamide
8-chlorotheophylline
85-18-7

8-chlorotheophylline

1-Bromo-2-butyne
3355-28-0

1-Bromo-2-butyne

A

4-[7-(2-Butynyl)-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester
586408-02-8

4-[7-(2-Butynyl)-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester

B

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide
piperazine
110-85-0

piperazine

piperazine dihydrochloride
142-64-3

piperazine dihydrochloride

tert-butyl 1H-imidazole-1-carboxylate
49761-82-2

tert-butyl 1H-imidazole-1-carboxylate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
Stage #1: piperazine; piperazine dihydrochloride In water for 0.0833333h;
Stage #2: tert-butyl 1H-imidazole-1-carboxylate With sodium chloride In water for 0.5h;
Stage #3: With sodium hydroxide In water chemoselective reaction;
piperazine
110-85-0

piperazine

tert-butyl pyridin-2-yl carbonate
89985-91-1

tert-butyl pyridin-2-yl carbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
In acetonitrile at 25℃; Kinetics;
With hydrogenchloride In water; acetonitrile at 25℃; Kinetics;
piperazine
110-85-0

piperazine

t-butyl 4-pyridyl carbonate
1426682-55-4

t-butyl 4-pyridyl carbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
With hydrogenchloride In water; acetonitrile at 25℃; Kinetics;
tert-butyldicarbonate
34619-03-9

tert-butyldicarbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dmap / dichloromethane
2: hydrogenchloride / acetonitrile; water / 25 °C
View Scheme
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium hydrogencarbonate / water; 1,4-dioxane / 25 h / 5 - 20 °C
2: palladium 10% on activated carbon; ammonium formate / methanol / 2 h / 65 °C / Reflux
View Scheme
Multi-step reaction with 2 steps
1: methanol / 20 °C
2: hydrogen; palladium 10% on activated carbon / methanol / 20 °C
View Scheme
[(1-Ethoxycyclopropyl)oxy]trimethylsilane
27374-25-0

[(1-Ethoxycyclopropyl)oxy]trimethylsilane

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-cyclopropylpiperazine-1-carboxylic acid tert-butyl ester
77278-34-3

4-cyclopropylpiperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
Stage #1: [(1-Ethoxycyclopropyl)oxy]trimethylsilane; 1-t-Butoxycarbonylpiperazine With sodium hydroxide; sodium cyanoborohydride; acetic acid In methanol at 60℃; for 5h;
Stage #2: With water In methanol for 0.0833333h;
Stage #3: With sodium hydroxide In methanol; water for 0.25h;
100%
With sodium tris(acetoxy)borohydride; acetic acid In deuteromethanol at 60℃; for 5h;100%
With sodium cyanoborohydride; acetic acid In methanol for 120h;71%
4-fluoro-3-nitro-benzoic acid methyl ester
329-59-9

4-fluoro-3-nitro-benzoic acid methyl ester

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-[4-(methoxycarbonyl)-2-nitrophenyl]piperazine-1-carboxylate

tert-butyl 4-[4-(methoxycarbonyl)-2-nitrophenyl]piperazine-1-carboxylate

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran at 20℃; for 1h; Cooling with ice;100%
With potassium carbonate In dimethyl sulfoxide at 80℃; for 12h;
With potassium carbonate In dimethyl sulfoxide at 120℃; for 24h;
chloroacetyl chloride
79-04-9

chloroacetyl chloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(2-chloroacetyl)piperazine-1-carboxylate
190001-40-2

tert-butyl 4-(2-chloroacetyl)piperazine-1-carboxylate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 0 - 20℃; for 21h;100%
With triethylamine In dichloromethane at 0 - 25℃; for 1.5h;95%
With triethylamine In dichloromethane at 0 - 25℃; for 1.5h;95%
1,3,5-trichloro-2,4,6-triazine
108-77-0

1,3,5-trichloro-2,4,6-triazine

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(4,6-dichloro-1,3,5-triazin-2-yl)piperazine-1-carboxylate
271592-49-5

tert-butyl 4-(4,6-dichloro-1,3,5-triazin-2-yl)piperazine-1-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0℃; for 0.5h;100%
With sodium hydrogencarbonate In acetone at 0℃; for 2h;96%
With sodium hydrogencarbonate In acetone Condensation;93%
benzyl chloroformate
501-53-1

benzyl chloroformate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-((benzyloxy)carbonyl)piperazine-1-carboxylate
121370-60-3

tert-butyl 4-((benzyloxy)carbonyl)piperazine-1-carboxylate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 0.5h;100%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃;62.5%
With triethylamine In dichloromethane Acylation;
With pyridine In dichloromethane at 0 - 20℃; Inert atmosphere;
bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(chlorocarbonyl)piperazine-1-carboxylate
59878-28-3

tert-butyl 4-(chlorocarbonyl)piperazine-1-carboxylate

Conditions
ConditionsYield
With pyridine In dichloromethane at 0 - 20℃; for 2h; Inert atmosphere;100%
With pyridine In dichloromethane at 0 - 25℃; for 1h;89%
With pyridine In dichloromethane at 0 - 20℃; for 0.5h; Acylation;85%
NBD chloride
10199-89-0

NBD chloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-(7-nitrobenzo[1,2,5]oxadiazol-4-yl)piperazine-1-carboxylic acid tert butyl ester
871508-91-7

4-(7-nitrobenzo[1,2,5]oxadiazol-4-yl)piperazine-1-carboxylic acid tert butyl ester

Conditions
ConditionsYield
With caesium carbonate In acetonitrile at 20℃; for 3h;100%
In chloroform; acetonitrile at 80℃; for 3h;100%
With triethylamine In dichloromethane at 20℃; for 2h;98.9%
1,3-dichloro-6,7-dimethoxyisoquinoline
24623-42-5

1,3-dichloro-6,7-dimethoxyisoquinoline

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-(3-chloro-6,7-dimethoxy-1-isoquinolyl)-1-piperazinecarboxylic acid tert-butyl ester
634198-15-5

4-(3-chloro-6,7-dimethoxy-1-isoquinolyl)-1-piperazinecarboxylic acid tert-butyl ester

Conditions
ConditionsYield
With 1-methyl-pyrrolidin-2-one; triethylamine at 70℃; for 2h;100%
4-Acetylbenzenesulfonyl chloride
1788-10-9

4-Acetylbenzenesulfonyl chloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-(4-acetyl-benzenesulfonyl)-piperazine-1-carboxylic acid tert-butyl ester
677752-68-0

4-(4-acetyl-benzenesulfonyl)-piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With triethylamine In dichloromethane100%
2-chloro-4-bromopyridine
73583-37-6

2-chloro-4-bromopyridine

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

1-N-(tert-butoxycarbonyl)-4-N-(2-chloropyridin-4-yl)piperazine
633283-63-3

1-N-(tert-butoxycarbonyl)-4-N-(2-chloropyridin-4-yl)piperazine

Conditions
ConditionsYield
With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene at 85℃; for 20h; Inert atmosphere;100%
With 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; sodium t-butanolate; tris(dibenzylideneacetone)dipalladium (0) In toluene at 100℃; for 3h;91%
With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene at 100℃; for 6 - 14h; Product distribution / selectivity; Heating / reflux;70%
With tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; sodium t-butanolate In toluene at 100℃; Buchwald-Hartwig Coupling; Inert atmosphere;70%
With tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; sodium t-butanolate In toluene at 90℃; for 4h; Schlenk technique; Sealed tube; Inert atmosphere;64%
1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

3-methyl-1H-pyrrole-2,4-dicarboxylic acid 4-pentafluorophenyl ester 4-(1,2,2-trimethyl-propyl) ester

3-methyl-1H-pyrrole-2,4-dicarboxylic acid 4-pentafluorophenyl ester 4-(1,2,2-trimethyl-propyl) ester

4-[3-methyl-4-(1,2,2-trimethyl-propoxycarbonyl)-1H-pyrrole-2-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester

4-[3-methyl-4-(1,2,2-trimethyl-propoxycarbonyl)-1H-pyrrole-2-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With TEA In N,N-dimethyl-formamide at 23℃; for 24h;100%
cyclobutanone
1191-95-3

cyclobutanone

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-cyclobutyl-piperazine-1-carboxylic acid tert-butyl ester
485798-62-7

4-cyclobutyl-piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With sodium tris(acetoxy)borohydride In 1,2-dichloro-ethane at 20℃; for 16h;100%
With sodium tris(acetoxy)borohydride In 1,2-dichloro-ethane at 20℃; for 16h;100%
Stage #1: cyclobutanone; 1-t-Butoxycarbonylpiperazine In dichloromethane at 20℃; for 0.5h;
Stage #2: With sodium tris(acetoxy)borohydride In diethyl ether at 20℃; for 16h;
97%
trimethylsilyl ether of 1-methoxycyclopropanol
84098-43-1

trimethylsilyl ether of 1-methoxycyclopropanol

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-cyclopropylpiperazine-1-carboxylic acid tert-butyl ester
77278-34-3

4-cyclopropylpiperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With sodium cyanoborohydride; acetic acid In tetrahydrofuran; methanol at 63℃; for 16h;100%
2-(4-bromobutyl)isoindoline-1,3-dione
5394-18-3

2-(4-bromobutyl)isoindoline-1,3-dione

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-[4-(1,3-dioxo-1,3-dihydroisoindol-2-yl)butyl]piperazine-1-carboxylic acid tert-butyl ester
745048-06-0

4-[4-(1,3-dioxo-1,3-dihydroisoindol-2-yl)butyl]piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In acetone for 22h; Reflux; Inert atmosphere;100%
With N-ethyl-N,N-diisopropylamine In acetonitrile for 12h; Heating;95%
With triethylamine In acetonitrile for 16h; Reflux;85%
1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

3-bromophenyl triisopropylsilyl ether
571202-87-4

3-bromophenyl triisopropylsilyl ether

4-(3-triisopropylsilanyloxy-phenyl)-piperazine-1-carboxylic acid tert-butyl ester
862261-23-2

4-(3-triisopropylsilanyloxy-phenyl)-piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With palladium diacetate; tri-tert-butyl phosphine; sodium t-butanolate In toluene100%
3-Bromothiophene
872-31-1

3-Bromothiophene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(3-thienyl)piperazine-1-carboxylate

tert-butyl 4-(3-thienyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 3-Bromothiophene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
5-bromopyrimidine
4595-59-9

5-bromopyrimidine

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(pyrimidin-5-yl)piperazine-1-carboxylate
634468-96-5

tert-butyl 4-(pyrimidin-5-yl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 5-bromopyrimidine; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 90℃; for 12h;58.7%
Stage #1: 5-bromopyrimidine; 1-t-Butoxycarbonylpiperazine With sodium t-butanolate In toluene for 0.25h; Heating / reflux;
Stage #2: palladium diacetate; tri-tert-butyl phosphine for 32h; Heating / reflux;
With tris-(dibenzylideneacetone)dipalladium(0); potassium tert-butylate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene for 16h; Reflux; Inert atmosphere;
para-nitrophenyl bromide
586-78-7

para-nitrophenyl bromide

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(4-nitrophenyl)piperazine-1-carboxylate
182618-86-6

tert-butyl 4-(4-nitrophenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: para-nitrophenyl bromide; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With Pd(PAd3)(4-FC6H4)Br; triethylamine In water; toluene at 80℃; for 24h; Inert atmosphere; Glovebox;89%
1-bromo-3-chlorobenzene
108-37-2

1-bromo-3-chlorobenzene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(3-chlorophenyl)piperazine-1-carboxylate
186790-11-4

tert-butyl 4-(3-chlorophenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 1-bromo-3-chlorobenzene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene at 100℃;83%
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; XPhos In 1,4-dioxane at 95℃; for 2h; Inert atmosphere;61.2%
With bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate; DavePhos
With tris-(dibenzylideneacetone)dipalladium(0); potassium tert-butylate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene for 16h; Inert atmosphere; Heating;1.5 g
3-bromo-1-trifluoromethylbenzene
401-78-5

3-bromo-1-trifluoromethylbenzene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(3-(trifluoromethyl)phenyl)piperazine-1-carboxylate

tert-butyl 4-(3-(trifluoromethyl)phenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 3-bromo-1-trifluoromethylbenzene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With Quinuclidine; nickel(II) bromide trihydrate In N,N-dimethyl acetamide at 20℃; for 3h; Sealed tube; Irradiation; Inert atmosphere;60%
2-bromonaphthalene
580-13-2

2-bromonaphthalene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

1,1-dimethylethyl 4-(2-naphthalenyl)-1-piperazinecarboxylate
684249-11-4

1,1-dimethylethyl 4-(2-naphthalenyl)-1-piperazinecarboxylate

Conditions
ConditionsYield
Stage #1: 2-bromonaphthalene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate; DavePhos
3-cyanobromobenzene
6952-59-6

3-cyanobromobenzene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

1,1-dimethylethyl 4-(3-cyanophenyl)piperazine-1-carboxylate
807624-20-0

1,1-dimethylethyl 4-(3-cyanophenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 3-cyanobromobenzene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With palladium diacetate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl In toluene for 4h; Reflux; Inert atmosphere;60%
With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthalene In toluene at 80℃; for 3h;
With sodium t-butanolate; palladium diacetate; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl In toluene at 80℃; for 16h;
With palladium diacetate; sodium t-butanolate; XPhos In toluene at 90℃; Buchwald-Hartwig Coupling;
3,5-difluorobromobenzene
461-96-1

3,5-difluorobromobenzene

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(3,5-difluorophenyl)piperazine-1-carboxylate
909418-94-6

tert-butyl 4-(3,5-difluorophenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 3,5-difluorobromobenzene; 1-t-Butoxycarbonylpiperazine With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In xylene at 50℃;
Stage #2: With macroporous polymer-supported isocyanate In xylene at 50℃; for 24h;
100%
With tris-(dibenzylideneacetone)dipalladium(0); johnphos; sodium t-butanolate In toluene for 15h; Inert atmosphere; Reflux;100%
With tris-(dibenzylideneacetone)dipalladium(0); johnphos; sodium t-butanolate In toluene for 15.5h; Time; Inert atmosphere; Reflux;100%
With Quinuclidine; nickel(II) bromide trihydrate In N,N-dimethyl acetamide at 20℃; for 3h; Sealed tube; Irradiation; Inert atmosphere;62%
4-fluoro-2-nitrobenzaldehyde
2923-96-8

4-fluoro-2-nitrobenzaldehyde

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

tert-butyl 4-(4-formyl-3-nitrophenyl)piperazine-1-carboxylate
904896-12-4

tert-butyl 4-(4-formyl-3-nitrophenyl)piperazine-1-carboxylate

Conditions
ConditionsYield
In dimethyl sulfoxide at 80℃; for 5h;100%
2-(4-fluorophenoxy)-ethylbromide
332-48-9

2-(4-fluorophenoxy)-ethylbromide

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-[2-(4-fluorophenoxy)ethyl]piperazine-1-carboxylic acid tert-butyl ester
947695-05-8

4-[2-(4-fluorophenoxy)ethyl]piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 24h;100%
4-Fluorobenzyl bromide
459-46-1

4-Fluorobenzyl bromide

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-(4-fluorobenzyl)piperazine-1-tert-butoxycarbonyl ester
77278-77-4

4-(4-fluorobenzyl)piperazine-1-tert-butoxycarbonyl ester

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 20℃; for 22h;100%
With triethylamine In dichloromethane at 0 - 20℃;98.3%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 16h;88%
With potassium carbonate In acetonitrile at 30℃; for 16h;79%
With triethylamine In dichloromethane at 20℃;60%
2',4',5'-trifluoroacetophenone
129322-83-4

2',4',5'-trifluoroacetophenone

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-(4-acetyl-2,5-difluorophenyl)piperazine-1-carboxylic acid tert-butyl ester
177325-04-1

4-(4-acetyl-2,5-difluorophenyl)piperazine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With pyridine; triethylamine at 20℃; for 48h;100%
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 40℃; for 68h;
4-(Methylthio)benzaldehyde
3446-89-7

4-(Methylthio)benzaldehyde

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

4-BOC-1-(4-methylthio)-benzylpiperazine

4-BOC-1-(4-methylthio)-benzylpiperazine

Conditions
ConditionsYield
Stage #1: 4-(Methylthio)benzaldehyde; 1-t-Butoxycarbonylpiperazine In methanol for 0.5h;
Stage #2: With borohydride; polymer-supported In methanol for 24h;
100%
dimethylamino sulfonyl chloride
13360-57-1

dimethylamino sulfonyl chloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

(S)-6'-chloro-N-((R)-hept-6-en-3-ylsulfonyl)-5-((2-((S)-1-hydroxyallyl)-2-methylcyclobutyl)methyl)-3',4,4',5-tetrahydro-2H,2’H-spiro[benzo[b][1,4]oxazepine-3,1’-naphthalene]-7-carboxamide
253176-45-3

(S)-6'-chloro-N-((R)-hept-6-en-3-ylsulfonyl)-5-((2-((S)-1-hydroxyallyl)-2-methylcyclobutyl)methyl)-3',4,4',5-tetrahydro-2H,2’H-spiro[benzo[b][1,4]oxazepine-3,1’-naphthalene]-7-carboxamide

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 24h; Inert atmosphere;100%
With triethylamine In dichloromethane at 20℃; for 12h;92%
With triethylamine at 0 - 20℃; for 4h; Inert atmosphere;89%
(6-bromonaphthalen-2-yl)sulfonyl chloride
50637-98-4

(6-bromonaphthalen-2-yl)sulfonyl chloride

1-t-Butoxycarbonylpiperazine
57260-71-6

1-t-Butoxycarbonylpiperazine

1-(tert-butoxycarbonyl)-4-(6-bromonaphthalene-2-sulfonyl)piperazine

1-(tert-butoxycarbonyl)-4-(6-bromonaphthalene-2-sulfonyl)piperazine

Conditions
ConditionsYield
With triethylamine In 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran100%
With sodium hydrogencarbonate In ethyl acetate at 20℃; for 1h;2.83 g
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