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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

2-Piperidone Manufacturer/High quality/Best price/In stock

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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 2-Piperidone

Cas:675-20-7

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

High Quality Oled CAS 675-20-7 2-Piperidone

Cas:675-20-7

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

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

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $5.0

Type:Manufacturers

inquiry

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 2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

δ-Valerolactam

Cas:675-20-7

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

Hebei Yanxi Chemical Co., Ltd. is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low car

2-Piperidone

Cas:675-20-7

Min.Order:1 Metric Ton

FOB Price: $1.0 / 2.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

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 relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

TIANFU-CHEM 675-20-7 2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufactu

2-Piperidone CAS 675-20-7

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

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

Manufacturer supply CAS 675-20-7 with best quality

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

2-Piperidone CAS675-20-7

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $7.0 / 9.0

Type:Trading Company

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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 R&amp

2-Piperidone/ LIDE PHARMA- Factory supply / Best price

Cas:675-20-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

2-Piperidone 675-20-7

Cas:675-20-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $400.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Beluga chemical professional supply High quality 2-Piperidone CAS 675-20-7 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made in China and

High quality 2-Piperidone CAS 675-20-7

Cas:675-20-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Factory Supply High Quality CAS 675-20-7 ,2-Piperidone

Cas:675-20-7

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

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

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Product Detail Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,

2-Piperidone CAS NO.: 675-20-7

Cas:675-20-7

Min.Order:20 Metric Ton

Negotiable

Type:Trading Company

inquiry

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

CAS NO.:675-20-7

Cas:675-20-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $60.0 / 80.0

Type:Lab/Research institutions

inquiry

Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: 2-Piperidone Synonyms: VALEROLACTAM;piperidin-2-one;D-VALEROLACTAM;DELTA-VALEROLACTAM;ALPHA-PIPERIDONE;6-VALEROLACTAM;2-PIPERIDONE;2-PIPERIDINONE CAS: 675-20-7 MF: C5H9NO MW: 99.13 EINECS: 211-622-9 Product Categories: Bu

2-Piperidone Manufactory best quality

Cas:675-20-7

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

2-Piperidone

Cas:675-20-7

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

2-Piperidone

Cas:675-20-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shaanxi New nine Material Technology Co., Ltd.

Our Advantage: 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good quali

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

FOB Price: $10.0 / 100.0

Type:Trading Company

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High purity 2-Piperidone

Cas:675-20-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

2-Piperidone

Cas:675-20-7

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:white or light yellow powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:25kg/drum, or as per your request. Application:Used as Pharmaceutical

2-Piperidone

Cas:675-20-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

2-Piperidone

Cas:675-20-7

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: 2-Piperidone CAS No.:675-20-7 Molecule Formula:C5H9NO Molecule Weight:99.13 Purity: 99.0% Package: 25kg/drum Description:Light yellow crystalline powder Manufacture Standards:Enterprise Standard TESTING ITEMS

High Quality 2-Piperidone in stock

Cas:675-20-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Buy Top Purity 2-Piperidone

Cas:675-20-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

2-hydroxypyridin
142-08-5

2-hydroxypyridin

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
Stage #1: 2-hydroxypyridin With palladium 10% on activated carbon; hydrogen; acetic acid at 24 - 28℃; for 15h;
Stage #2: In methanol
100%
With nickel-copper at 200 - 235℃; under 29420.3 Torr; Hydrogenation;
With 1,4-dioxane; palladium at 55℃; Hydrogenation;
With ethanol; nickel under 36775.4 - 73550.8 Torr; Hydrogenation;
With C33H49ClNRh; hydrogen In 2,2,2-trifluoroethanol; water at 70℃; under 7500.75 Torr; for 24h; Autoclave;99 %Chromat.
Cyclopentanone oxime
1192-28-5

Cyclopentanone oxime

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With aluminium trichloride at 40℃; for 0.5h; Rearrangement;100%
With tin(II) chloride dihdyrate; tetra-(n-butyl)ammonium iodide In acetonitrile for 0.5h; Beckmann Rearrangement; Molecular sieve; Reflux;96%
With silica gel; caesium carbonate; N-tosylimidazole In N,N-dimethyl-formamide for 2h; Beckmann rearrangement; Reflux;88%
5-aminopentanoic acid
660-88-8

5-aminopentanoic acid

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With silica gel In toluene for 1.5h; Heating;99%
With tris(2,2,2-trifluoroethyl) borate In acetonitrile at 80℃; for 5h; Reagent/catalyst;99%
With 14C2H7N*14H(1+)*2H2O*2O(2-)*2Zr(4+)*O122P4W34(18-) In dimethyl sulfoxide at 70℃; for 24h;99%
C16H29NO3

C16H29NO3

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With acetic acid at 105℃; for 5h;98%
2-oxopiperidine-1-carboxylic acid tert-butyl ester
85908-96-9

2-oxopiperidine-1-carboxylic acid tert-butyl ester

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With water at 100℃; for 0.5h;97%
With silica gel; ytterbium(III) triflate In neat (no solvent) at 40℃; for 6h;96%
In acetonitrile at 300℃; under 75007.5 Torr;95%
With copper(II) bis(trifluoromethanesulfonate) In dichloromethane at 50℃; for 18h; Sealed tube;94%
N-benzyloxycarbonyl-2-piperidone
106412-35-5

N-benzyloxycarbonyl-2-piperidone

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
Stage #1: N-benzyloxycarbonyl-2-piperidone With diethylaluminium chloride In hexane; dichloromethane at -78℃; for 0.166667h;
Stage #2: With methyl-phenyl-thioether In hexane; dichloromethane at 25℃; for 1h;
97%
N-cyclohexyl-2-thiazolinylsulfenamide
1089312-85-5

N-cyclohexyl-2-thiazolinylsulfenamide

5-aminopentanoic acid
660-88-8

5-aminopentanoic acid

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With triphenylphosphine96%
5-hydroxypentylamine
2508-29-4

5-hydroxypentylamine

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With Rh(trop2N)(PPh3); methacrylic acid methyl ester In tetrahydrofuran at 20℃; for 12h; Inert atmosphere;96%
With dichloro(benzene)ruthenium(II) dimer; sodium hydride; acetonitrile; 1,3-di(propan-2-yl)-1H-imidazol-3-ium bromide In toluene for 36h; Inert atmosphere; Reflux;94%
With sodium hydride; dichloro(benzene)ruthenium(II) dimer; acetonitrile; 1,3-di(propan-2-yl)-1H-imidazol-3-ium bromide In toluene for 36h; Conversion of starting material; Inert atmosphere; Reflux;94%
cyclopentanone
120-92-3

cyclopentanone

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With sodium azide; sulfuric acid; silica gel at 60℃; for 0.416667h; Schmidt reaction;95%
With acetylhydroxamic acid; sulfuric acid In acetonitrile at 80℃; under 1292.9 Torr; for 0.133333h; Microwave irradiation;87%
With hydroxylamine hydrochloride at 120℃; for 6h; Beckmann rearrangement; neat (no solvent);80%
1-((R)-1-Phenyl-ethyl)-piperidin-2-one

1-((R)-1-Phenyl-ethyl)-piperidin-2-one

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With methanesulfonic acid In toluene for 6h; Heating;95%
5-hydroxypentylamine
2508-29-4

5-hydroxypentylamine

A

piperidine
110-89-4

piperidine

B

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With RuCl2[PPh2(CH2)4PPh2][2-(H2NCH2)C5H4N]; potassium hydroxide In toluene for 16h; Inert atmosphere; Reflux;A 7%
B 93%
With dodecacarbonyl-triangulo-triruthenium; N–phenyl–2–(dicyclohexylphosphino)pyrrole In cyclohexane at 140℃; for 21h; Reagent/catalyst; Inert atmosphere; Schlenk technique; Autoclave;
δ-aminovaleric acid potassium salt

δ-aminovaleric acid potassium salt

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With 1-methyl-1H-imidazole; bis(trichloromethyl) carbonate; potassium hydroxide In water; acetonitrile at 60℃; for 0.00277778h; Inert atmosphere;93%
2-Pyridone
142-08-5

2-Pyridone

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol at 20℃; for 24h;92%
N-benzyloxycarbonyl-5-aminovaleric acid succinimide ester
76944-94-0

N-benzyloxycarbonyl-5-aminovaleric acid succinimide ester

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethyl acetate91%
5-azidopentanamide
1360453-32-2

5-azidopentanamide

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
Stage #1: 5-azidopentanamide With triphenylphosphine In tetrahydrofuran at 20℃; for 1h;
Stage #2: With water In tetrahydrofuran for 24h; Reflux;
91%
With tri-n-butyl-tin hydride In toluene for 24h; Reflux;84%
1-Azido-1-methylsulfanyl-cyclopentane

1-Azido-1-methylsulfanyl-cyclopentane

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With trifluoroacetic acid In chloroform at 25℃; for 2h;88%
5-chloro-valeric acid
1119-46-6

5-chloro-valeric acid

A

piperidine
110-89-4

piperidine

B

piperidin-2-one
675-20-7

piperidin-2-one

C

1-pentanamine
110-58-7

1-pentanamine

D

N-butylamine
109-73-9

N-butylamine

Conditions
ConditionsYield
Stage #1: 5-chloro-valeric acid With cyclopentyl methyl ether; ammonia at 200℃; under 4500.45 Torr; Sealed tube; Green chemistry;
Stage #2: With cyclopentyl methyl ether; ammonia; hydrogen at 200℃; under 42004.2 Torr; for 6.5h; Cooling with ice; Green chemistry;
A 85%
B 9%
C 2%
D 2%
piperidine
110-89-4

piperidine

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With 5.4 wt% Au/CeO2; water; oxygen In diethylene glycol dimethyl ether at 160℃; under 760.051 Torr; for 2.5h; Catalytic behavior; Schlenk technique;83%
With water; oxygen at 100℃; under 760.051 Torr; for 24h; Catalytic behavior; Reagent/catalyst; Time; Green chemistry;80%
With oxygen; gold on silica dioxide In toluene at 100℃; for 100h;60%
Co{(N4C19H6(CH3)8)(CH2CH2COOC3H7)4(CH2COOC3H7)3}(CH2CHC(O)NHCH2CH2)(1+)

Co{(N4C19H6(CH3)8)(CH2CH2COOC3H7)4(CH2COOC3H7)3}(CH2CHC(O)NHCH2CH2)(1+)

A

3-methyl-2-pyrrolidinone
2555-05-7

3-methyl-2-pyrrolidinone

B

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
In methanol Irradiation (UV/VIS); anaerobic irradiation 1h with visible light at 20°C; analyzing products by GLC;A 83%
B 3%
In benzene Irradiation (UV/VIS); anaerobic irradiation 1h with visible light at 20°C; analyzing products by GLC;A 76%
B 2%
In water Irradiation (UV/VIS); anaerobic irradiation 1h with visible light in single-compartment vesicle of N,N-dihexadecyl-Nα-(6-(trimethylammonio)hexanoyl)-L-alaninamide bromide at 20°C; phosphate-borate buffer; analyzing products by GLC;A 63%
B 24%
3-phenylpropyl 4-cyanobutanoate

3-phenylpropyl 4-cyanobutanoate

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With platinum(IV) oxide; carbon monoxide; hydrogen In methanol at 25℃; for 72h; Autoclave; Inert atmosphere;80%
ethyl 5-azidovalerate
89896-39-9

ethyl 5-azidovalerate

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With water; triphenylphosphine In tetrahydrofuran for 12h; Ambient temperature;77%
cyclopentanone
120-92-3

cyclopentanone

A

piperidin-2-one
675-20-7

piperidin-2-one

B

Cyclopentanone oxime
1192-28-5

Cyclopentanone oxime

Conditions
ConditionsYield
With acetylhydroxamic acid; sulfuric acid In acetonitrile for 8h; Reflux;A 75%
B 6%
With ammonium hydroxide; molecular sieve; dihydrogen peroxide at 79.9℃; for 5h; other catalyst; further ketones;
4-cyanobutanoic acid ammonium salt

4-cyanobutanoic acid ammonium salt

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With ammonium hydroxide; hydrogen; nickel In water at 70℃; under 25857.4 Torr; for 3.5h;74%
Cyclopentylmethylketoxim
90048-89-8

Cyclopentylmethylketoxim

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With sulfonated polymeric solid acid H-PDVB-SO3H In benzonitrile at 130℃; for 1h; Beckmann Rearrangement;74%
1-(trimethylsilyl)piperidin-2-one
3553-93-3

1-(trimethylsilyl)piperidin-2-one

Ethyl 2-bromopropionate
535-11-5, 41978-69-2

Ethyl 2-bromopropionate

A

piperidin-2-one
675-20-7

piperidin-2-one

B

trimethylsilyl bromide
2857-97-8

trimethylsilyl bromide

C

2-(2-Oxo-piperidin-1-yl)-propionic acid ethyl ester

2-(2-Oxo-piperidin-1-yl)-propionic acid ethyl ester

D

ethyl acrylate
140-88-5

ethyl acrylate

Conditions
ConditionsYield
at 155 - 180℃; for 3h; Yields of byproduct given;A n/a
B n/a
C 73%
D n/a
methyl (2S)-pyrrolidine carboxylate
2577-48-2

methyl (2S)-pyrrolidine carboxylate

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
With N,N,N,N,N,N-hexamethylphosphoric triamide; samarium diiodide; Trimethylacetic acid In tetrahydrofuran at 0 - 20℃; for 0.166667h; Deamination;73%
((E)-1-Propenyl)-piperidin-2-one
642093-74-1

((E)-1-Propenyl)-piperidin-2-one

piperidin-2-one
675-20-7

piperidin-2-one

Conditions
ConditionsYield
Stage #1: ((E)-1-Propenyl)-piperidin-2-one With ruthenium trichloride; sodium periodate In water; 1,2-dichloro-ethane
Stage #2: With sodium hydrogencarbonate; sodium carbonate In water; 1,2-dichloro-ethane
70%
Multi-step reaction with 2 steps
1: NaIO4; aq. RuCl3 / 1,2-dichloro-ethane / 20 °C
2: 100 mg / aq. NaHCO3; Na2CO3 / acetone
View Scheme
methanol
67-56-1

methanol

N-chloro-δ-valerolactam
54468-04-1

N-chloro-δ-valerolactam

A

piperidin-2-one
675-20-7

piperidin-2-one

B

6-methoxypiperidin-2-one
63853-82-7

6-methoxypiperidin-2-one

Conditions
ConditionsYield
for 0.25h; Irradiation;A 5 % Chromat.
B 69%
piperidin-2-one
675-20-7

piperidin-2-one

1-nitrosopiperidin-2-one
50550-65-7

1-nitrosopiperidin-2-one

Conditions
ConditionsYield
With sodium acetate; dinitrogen tetraoxide In dichloromethane at -10℃; for 1h;100%
With 3,3-dimethyl-2-nitroso-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide In 1,2-dichloro-ethane at 80℃; Sealed tube;93%
With diethyl ether; nitrous anhydride unter Kuehlung;
piperidin-2-one
675-20-7

piperidin-2-one

chloral
75-87-6

chloral

1-(2,2,2-Trichloro-1-hydroxy-ethyl)-piperidin-2-one
65101-81-7

1-(2,2,2-Trichloro-1-hydroxy-ethyl)-piperidin-2-one

Conditions
ConditionsYield
In benzene for 2h; Heating;100%
piperidin-2-one
675-20-7

piperidin-2-one

p-methoxybenzyl chloride
824-94-2

p-methoxybenzyl chloride

N-(4-Methoxybenzyl)-δ-valerolactam
128773-73-9

N-(4-Methoxybenzyl)-δ-valerolactam

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran; mineral oil at 0℃; Reflux; Inert atmosphere;100%
With sodium hydride In tetrahydrofuran for 23h; Heating;94%
With sodium t-butanolate In dimethyl sulfoxide at 20℃; for 3h;78%
With potassium hydroxide; tetrabutylammomium bromide In toluene for 8h; Heating;52%
With tetrabutylammomium bromide; potassium hydroxide In toluene for 8h; Dean-Stark;28.8 g
piperidin-2-one
675-20-7

piperidin-2-one

benzenesulfonyl chloride
98-09-9

benzenesulfonyl chloride

1-Benzenesulfonyl-3,4,5,6-tetrahydropyridin-2-one
7744-25-4

1-Benzenesulfonyl-3,4,5,6-tetrahydropyridin-2-one

Conditions
ConditionsYield
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere;
Stage #2: benzenesulfonyl chloride In tetrahydrofuran; hexane at -78℃; for 4h; Inert atmosphere;
100%
With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 3h;94%
With n-butyllithium 1.) THF, hexane, -60 deg C, 20 min, 2.) THF, hexane, from -60 deg C to 0 deg C, 2.5 h; Yield given. Multistep reaction;
piperidin-2-one
675-20-7

piperidin-2-one

ethyl acrylate
140-88-5

ethyl acrylate

1-(2-ethoxycarbonylethyl)-2-piperidinone
88948-40-7

1-(2-ethoxycarbonylethyl)-2-piperidinone

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran Michael addition reaction;100%
With tetraethoxy orthosilicate; cesium fluoride In neat (no solvent) at 25℃; for 0.166667h; Product distribution; Mechanism; variation of reaction time and amount of CsF; further α,β-unsaturated esters; further amides; presence of different solvents;98%
With tetraethoxy orthosilicate; cesium fluoride In neat (no solvent) at 25℃; for 0.166667h;98%
piperidin-2-one
675-20-7

piperidin-2-one

bromoacetic acid tert-butyl ester
5292-43-3

bromoacetic acid tert-butyl ester

1-t-Butoxycarbonylmethyl-2-piperidone
216252-69-6

1-t-Butoxycarbonylmethyl-2-piperidone

Conditions
ConditionsYield
Stage #1: piperidin-2-one With sodium hydride In toluene at 0℃; for 1h; Metallation;
Stage #2: bromoacetic acid tert-butyl ester at 20℃; for 10h; Alkylation;
100%
With P-tris(dimethylamino)-C-dimethylphosphonium ylide In tetrahydrofuran at -78 - 20℃; for 3h; Alkylation;71%
piperidin-2-one
675-20-7

piperidin-2-one

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

1-Bromo-2-butyne

1-but-2-ynyl-piperidin-2-one

1-but-2-ynyl-piperidin-2-one

Conditions
ConditionsYield
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; potassium carbonate In tetrahydrofuran for 4h; Heating;100%
piperidin-2-one
675-20-7

piperidin-2-one

Methyl 4-(bromomethyl)benzoate
2417-72-3

Methyl 4-(bromomethyl)benzoate

4-(2-oxopiperidinomethyl)benzoate
1039889-84-3

4-(2-oxopiperidinomethyl)benzoate

Conditions
ConditionsYield
Stage #1: piperidin-2-one With sodium hydride In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: Methyl 4-(bromomethyl)benzoate In N,N-dimethyl-formamide at 20℃; for 3h;
100%
piperidin-2-one
675-20-7

piperidin-2-one

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

2-oxopiperidine-1-carboxylic acid tert-butyl ester
85908-96-9

2-oxopiperidine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran at -78℃; for 0.166667h;
Stage #2: di-tert-butyl dicarbonate In tetrahydrofuran at -78℃; for 0.5h; Further stages.;
99%
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran at -78℃; for 0.5h; Inert atmosphere;
Stage #2: di-tert-butyl dicarbonate In tetrahydrofuran at 20℃; for 16h; Inert atmosphere;
98%
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.166667h; Inert atmosphere;
Stage #2: di-tert-butyl dicarbonate In tetrahydrofuran; hexane at -78℃; for 0.75h; Inert atmosphere;
97%
piperidin-2-one
675-20-7

piperidin-2-one

piperidine-2,6-dione
1121-89-7

piperidine-2,6-dione

Conditions
ConditionsYield
With 3,3-dimethyldioxirane In acetone at 0 - 25℃; for 48h;99%
With manganese(II) triflate; 4,4'-diamino-2,2'-bipyridyl; dihydrogen peroxide In acetone at 20℃; for 1h; Reagent/catalyst;98%
With potassium peroxymonosulphate; water; potassium bromide In dichloromethane at 20℃; for 7h; Sealed tube; Irradiation;95%
With oxygen; titanium(IV) oxide In water for 48h; Irradiation;0.9 mmol
piperidin-2-one
675-20-7

piperidin-2-one

allyl bromide
106-95-6

allyl bromide

1-allyl-2-piperidinone
28737-46-4

1-allyl-2-piperidinone

Conditions
ConditionsYield
Stage #1: piperidin-2-one With sodium hydride In tetrahydrofuran
Stage #2: allyl bromide In tetrahydrofuran
99%
With sodium hydride In tetrahydrofuran at 20℃;92%
With potassium hydride In tetrahydrofuran at 0 - 20℃; for 20h;89%
piperidin-2-one
675-20-7

piperidin-2-one

Ethyl 4-bromobenzoate
5798-75-4

Ethyl 4-bromobenzoate

N-(4-ethoxycarbonylphenyl)-2-piperidone

N-(4-ethoxycarbonylphenyl)-2-piperidone

Conditions
ConditionsYield
With copper(l) iodide; potassium carbonate; N,N`-dimethylethylenediamine In toluene at 110℃; for 23h;99%
piperidin-2-one
675-20-7

piperidin-2-one

iodobenzene
591-50-4

iodobenzene

1-phenylpiperidin-2-one
4789-09-7

1-phenylpiperidin-2-one

Conditions
ConditionsYield
With aluminum oxide; potassium fluoride; copper(l) iodide; 1,10-Phenanthroline In toluene at 110℃; for 8h;99%
With potassium phosphate; copper(l) iodide; N-Methyl-L-proline Methyl Ester In dimethyl sulfoxide at 110℃; for 5h; Goldberg reaction; Inert atmosphere;81%
With potassium carbonate In neat (no solvent) at 120℃; for 20h; Catalytic behavior; Green chemistry;75%
piperidin-2-one
675-20-7

piperidin-2-one

propargyl bromide
106-96-7

propargyl bromide

A

N-propargyl δ-valerolactam
18327-29-2

N-propargyl δ-valerolactam

B

N-(1,2-propadienyl)valerolactam
214219-69-9

N-(1,2-propadienyl)valerolactam

Conditions
ConditionsYield
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; potassium carbonate In tetrahydrofuran for 4h; Heating;A n/a
B 99%
piperidin-2-one
675-20-7

piperidin-2-one

Benzyloxyacetyl chloride
19810-31-2

Benzyloxyacetyl chloride

1-(2-(benzyloxy)acetyl)piperidin-2-one
840-11-9

1-(2-(benzyloxy)acetyl)piperidin-2-one

Conditions
ConditionsYield
Stage #1: piperidin-2-one With pyridine; dmap In dichloromethane at 20℃; for 0.0833333h; Inert atmosphere;
Stage #2: Benzyloxyacetyl chloride In dichloromethane at 50℃; for 16h; Inert atmosphere;
99%
With pyridine In toluene for 12h; Heating;2.95 g
piperidin-2-one
675-20-7

piperidin-2-one

3-chloro-4-fluorobenzyl bromide
192702-01-5

3-chloro-4-fluorobenzyl bromide

1-(3-chloro-4-fluorobenzyl)piperidin-2-one
865300-49-8

1-(3-chloro-4-fluorobenzyl)piperidin-2-one

Conditions
ConditionsYield
Stage #1: piperidin-2-one With tetra(n-butyl)ammonium hydrogensulfate; sodium hydroxide In tert-butyl methyl ether; water at 20 - 30℃; for 0.5h; Inert atmosphere; Large scale;
Stage #2: 3-chloro-4-fluorobenzyl bromide In tert-butyl methyl ether; water at 20 - 30℃; for 0.5h; Inert atmosphere; Large scale;
99%
Stage #1: piperidin-2-one With tert-butyl methyl ether; tetra(n-butyl)ammonium hydrogensulfate; sodium hydroxide In water at 20 - 30℃; for 0.5h; Inert atmosphere; Large scale;
Stage #2: 3-chloro-4-fluorobenzyl bromide In water at 20 - 30℃; Inert atmosphere; Large scale;
99%
Stage #1: piperidin-2-one; tetrabutylammonium sulfate In tert-butyl methyl ether at 20℃; for 0.0833333h;
Stage #2: 3-chloro-4-fluorobenzyl bromide With sodium hydroxide In tert-butyl methyl ether; water at 20 - 30℃; for 4h;
Stage #1: piperidin-2-one With sodium hydride In tetrahydrofuran; 1-methyl-pyrrolidin-2-one at 0℃; for 0.583333h;
Stage #2: 3-chloro-4-fluorobenzyl bromide In tetrahydrofuran; 1-methyl-pyrrolidin-2-one at 0 - 20℃;
Stage #1: piperidin-2-one With sodium hydride In tetrahydrofuran; 1-methyl-pyrrolidin-2-one at 0℃; for 0.583333h;
Stage #2: 3-chloro-4-fluorobenzyl bromide In tetrahydrofuran; 1-methyl-pyrrolidin-2-one at 0 - 20℃;
piperidin-2-one
675-20-7

piperidin-2-one

4-[(4,5-dichloro-1,3-thiazol-2-yl)oxy]-2,5-dimethylaniline
929910-27-0

4-[(4,5-dichloro-1,3-thiazol-2-yl)oxy]-2,5-dimethylaniline

4-[(4,5-dichloro-1,3-thiazol-2-yl)oxy]-2,5-dimethyl-N-[piperidin-2-ylidene]aniline

4-[(4,5-dichloro-1,3-thiazol-2-yl)oxy]-2,5-dimethyl-N-[piperidin-2-ylidene]aniline

Conditions
ConditionsYield
Stage #1: piperidin-2-one With trichlorophosphate In toluene at 20℃; for 2h;
Stage #2: 4-[(4,5-dichloro-1,3-thiazol-2-yl)oxy]-2,5-dimethylaniline In toluene for 5h; Heating / reflux;
Stage #3: With sodium hydroxide In water; toluene
99%
piperidin-2-one
675-20-7

piperidin-2-one

5-amino-valeric acid ; hydrochloride
627-95-2

5-amino-valeric acid ; hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; water at 90℃; for 24h;98%
With water; hydrogen cation
piperidin-2-one
675-20-7

piperidin-2-one

(E)-3-phenylpropenal
14371-10-9

(E)-3-phenylpropenal

1-(3-phenylpropionyl)-2-piperidone
60437-57-2

1-(3-phenylpropionyl)-2-piperidone

Conditions
ConditionsYield
Stage #1: piperidin-2-one; (E)-3-phenylpropenal With Shvo's Catalyst In toluene at 100℃; for 24h; Inert atmosphere;
Stage #2: With hydrogen In toluene at 100℃; under 760.051 Torr; for 5h;
98%
piperidin-2-one
675-20-7

piperidin-2-one

C11H5BrF3N3S

C11H5BrF3N3S

2-(2-oxo-1-piperidinyl)-6-(4-trifluoromethylphenyl)imidazo[2,1-b]-[1,3,4]thiadiazole

2-(2-oxo-1-piperidinyl)-6-(4-trifluoromethylphenyl)imidazo[2,1-b]-[1,3,4]thiadiazole

Conditions
ConditionsYield
With potassium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 130℃; for 0.25h; Buchwald-Hartwig Coupling; Inert atmosphere; Microwave irradiation;98%
piperidin-2-one
675-20-7

piperidin-2-one

benzyl chloride
100-44-7

benzyl chloride

ethyl iodide
75-03-6

ethyl iodide

3-ethyl-1-(phenylmethyl)-2-piperidinone
95936-18-8

3-ethyl-1-(phenylmethyl)-2-piperidinone

Conditions
ConditionsYield
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran; hexane at -78 - 0℃; for 1h; Inert atmosphere;
Stage #2: ethyl iodide In tetrahydrofuran; hexane at 0℃; for 1h; Inert atmosphere;
Stage #3: benzyl chloride In tetrahydrofuran; hexane at -78 - 20℃; for 3h; Inert atmosphere;
98%
piperidin-2-one
675-20-7

piperidin-2-one

bromoethyl-2-benzyl ether
1462-37-9

bromoethyl-2-benzyl ether

1-(2-(benzyloxy)ethyl)piperidin-2-one
157399-43-4

1-(2-(benzyloxy)ethyl)piperidin-2-one

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran 1.) 0 deg C; 2.) heating;97%
piperidin-2-one
675-20-7

piperidin-2-one

benzyl bromide
100-39-0

benzyl bromide

N-benzyl-2-piperidinone
4783-65-7

N-benzyl-2-piperidinone

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran at -78 - 20℃;97%
Stage #1: piperidin-2-one With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.333333h;
Stage #2: benzyl bromide In tetrahydrofuran; hexane at -78 - 20℃;
97%
With n-butyllithium In tetrahydrofuran at -78 - 20℃;97%
piperidin-2-one
675-20-7

piperidin-2-one

2-(ethylthio)acetyl chloride
54256-37-0

2-(ethylthio)acetyl chloride

1-ethylsulfenylacetylpiperidin-2-one
221444-84-4

1-ethylsulfenylacetylpiperidin-2-one

Conditions
ConditionsYield
In benzene for 12h; Heating;97%
Heating;
In benzene
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