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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

Cyclen Manufacturer/High quality/Best price/In stock

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Jinan Finer Chemical Co., Ltd

Product informations Product Name Cyclen CAS No. 294-90-6 Appearance White powder Assay ≥99% Capacity 100mt

Cyclen

Cas:294-90-6

Min.Order:1 Gram

FOB Price: $8.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Cyclen(1,4,7,10-Tetraazacyclododecane) supplier in China

Cas:294-90-6

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Wuhan Fortuna Chemical 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:Light yellow to white crystalline powder Storage:Refrigerator

Manufacturer supply Cyclen CAS 294-90-6 with good quality and prompt service

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $800.0

Type:Trading Company

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Hangzhou Think Chemical Co. Ltd

Cyclen CAS No.:294-90-6 Name: Cyclen Synonyms: 1,4,7,10-Tetraazacyclododecane Molecular Structure: Molecular Formula: C8H20N4 Molecular Weight: 172.27 CAS Regis

High purity Cyclen CAS No.:294-90-6

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Other

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

1,4,7,10-Tetraazacyclododecane

Cas:294-90-6

Min.Order:1 Kilogram

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 1,4,7,10-tetraazacyclododecane

Cas:294-90-6

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

High Content Natural Extract Cyclen HACCP manufacturer

Cas:294-90-6

Min.Order:1 Gram

FOB Price: $0.1

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 Cyclen

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

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COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

Cyclen/1,4,7,10-Tetraazacyclododecane

Cas:294-90-6

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Chemwill Asia Co., Ltd.

Cyclen ( 1,4,7,10-Tetraazacyclododecane ) -- CHemwill

Cas:294-90-6

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Manufacturers

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Sinoway Industrial Co., Ltd.

Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) W

99% up Cyclen 294-90-6

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $825.0 / 1100.0

Type:Trading Company

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GIHI CHEMICALS CO.,LIMITED

GIHI CHEMICALS exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, GIHI CHEMICALS is your best choice. pls contact with us freely for getting detailed prod

Cyclen

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

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Hubei DiBo chemical co., LTD

Name:Cyclen CAS:294-90-6 Grade:For chemical industry, scientific research and export Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability Product

Cyclen Manufacturer/High quality/Best price/In stock

Cas:294-90-6

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

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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

Cyclen/ LIDE PHARMA- Factory supply / Best price

Cas:294-90-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

High Quality Cyclen Basic information Product Name: Cyclen Synonyms: 1,4,7,10-Tetrazacyclododecane;1,4,7,10-TETRAAZACYCLODODECANE;CYCLEN;1,4,7,10-Tetracyclododecane;Tetraaza 12-crown-4

1,4,7,10-Tetrazacyclododecane

Cas:294-90-6

Min.Order:1 Metric Ton

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

Cyclen

Cas:294-90-6

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

New production CAS 294-90-6 with best quality

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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

Hot Sell Factory Supply Raw Material CAS 294-90-6 ,Cyclen

Cas:294-90-6

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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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 email in time prod

Cyclen

Cas:294-90-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Henan Sinotech Import&Export Corporation

Product Name 1,4,7,10-tetraazacyclododecane Structural formula CAS No. 294-90-6 Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Pharmaceu

Cyclen CAS:294-90-6

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Shanghai Upbio Tech Co.,Ltd

Cyclen/1,4,7,10-Tetrazacyclododecane 294-90-6 EINECS 425-450-9 Molecular Formula: C8H20N4 Molecular Weight: 172.27 MP.109-114.5°C Appearance: Light yellow crystalline or white crystal powder. Property: It f

High quality Cyclen / 1,4,7,10-Tetrazacyclododecane 294-90-6

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $10.0

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

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 prese

Cyclen

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $76.0 / 85.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

Cyclen CAS:294-90-6 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 quality organic intermediates, stero

Cyclen CAS:294-90-6

Cas:294-90-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

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,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,

Cyclen CAS NO.294-90-6

Cas:294-90-6

Min.Order:10 Gram

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.:294-90-6

Cas:294-90-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Wuhan Wonda Pharm Limited

1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products wi

Factory supply Cyclen in bulk with good price

Cas:294-90-6

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Mojin Biotechnology Co.,Ltd

Company information: Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in chemical raw materials and chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big custo

Cyclen CAS 294-90-6

Cas:294-90-6

Min.Order:1 Kilogram

FOB Price: $8.0 / 10.0

Type:Trading Company

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Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: Cyclen Synonyms: Cyclen,97%;Kryptofix 11 aza;10-Tetraazacyclododecane;Tetraazacyclododecane (Cyclen);Cyclen(M-100);Tetraaza-12-Crown-4 ( CYclen);Cyclen, 97% 250MG;NSC 629374 CAS: 294-90-6 MF: C8H20N4 MW: 172.27 EINECS: 202-

Cyclen high purity best quality

Cas:294-90-6

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

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Synthetic route

tert-butyl 1,4,7,10-tetraazacyclododecane carboxylate
916671-24-4

tert-butyl 1,4,7,10-tetraazacyclododecane carboxylate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane for 0.333333h;100%
cyclen-glyoxal
74199-09-0, 79236-92-3

cyclen-glyoxal

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide; bromine In water; toluene99.23%
With hydrogenchloride; sodium hydroxide; bromine In water; toluene99.23%
With hydrogenchloride; bromine In water pH=6;55%
1,4,7,10-tetraazacyclododecane tetrahydrochloride
10045-25-7

1,4,7,10-tetraazacyclododecane tetrahydrochloride

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With hydrogenchloride95%
With potassium hydroxide In water at 0 - 10℃;91.3%
With potassium hydroxide
With sodium hydroxide In toluene at 40℃; for 1h; Reflux;13.77 g
With sodium hydroxide In water; toluene12 g
C11H13NO2

C11H13NO2

1,5-diamino-3-azapentane
111-40-0

1,5-diamino-3-azapentane

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With 5%-palladium/activated carbon; hydrogen; potassium carbonate In 2-methyltetrahydrofuran at 15℃; for 4h; Reagent/catalyst; Temperature; Solvent;94.9%
2,3,4,5,6,7,8,8c-octahydro-1H-4a,6a,8a-triaza-2a-azoniacyclopent[fg]acenaphthylene bromide salt

2,3,4,5,6,7,8,8c-octahydro-1H-4a,6a,8a-triaza-2a-azoniacyclopent[fg]acenaphthylene bromide salt

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With potassium hydroxide In water at 100℃; Temperature;93.2%
With caustic In water for 0.5h; Heating;88%
With potassium hydroxide In water for 0.5h; Heating;71%
1,2-Diiodoethane
624-73-7

1,2-Diiodoethane

ethylenediamine
107-15-3

ethylenediamine

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With tetrabutylammomium bromide In ethanol at 80℃; for 8h;88.4%
cyclen tetratosylate
52667-88-6

cyclen tetratosylate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With sulfuric acid at 165℃;88%
Stage #1: cyclen tetratosylate With sulfuric acid at 100℃; for 0.05h; Microwave irradiation;
Stage #2: With hydrogenchloride In water
Stage #3: With sodium hydroxide In water
87%
With sulfuric acid at 100 - 105℃; Heating; 30-48 h;85%
1,4,7,10-tetraazatricyclo<8.2.1.14,7>tetradecane-13,14-dione

1,4,7,10-tetraazatricyclo<8.2.1.14,7>tetradecane-13,14-dione

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With hydrazine hydrate In methanol at 20℃; for 20.5h; Solvent; Temperature; Reflux;87.21%
1-bromo-2-iodoethane
590-16-9

1-bromo-2-iodoethane

ethylenediamine
107-15-3

ethylenediamine

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With tetrabutylammomium bromide In ethanol at 80℃; for 8h;86%
ethylenediamine
107-15-3

ethylenediamine

ethylene dibromide
106-93-4

ethylene dibromide

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With tetra-(n-butyl)ammonium iodide In ethanol at 80℃; for 8h; Reagent/catalyst; Solvent; Temperature;85%
ethylenediamine
107-15-3

ethylenediamine

1-Bromo-2-chloroethane
107-04-0

1-Bromo-2-chloroethane

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With tetrabutylammomium bromide In ethanol at 80℃; for 8h;76.7%
ethylenediamine
107-15-3

ethylenediamine

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With tetrabutylammomium bromide In ethanol at 80℃; for 8h;74.4%
C32H36N4O8S4

C32H36N4O8S4

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With sulfuric acid at 90℃; for 60h; Large scale;73%
2,3,5,6,8,9-hexahydrodiimidazo[1,2-a:2′,1′-c]pyrazine

2,3,5,6,8,9-hexahydrodiimidazo[1,2-a:2′,1′-c]pyrazine

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran; toluene at 0 - 130℃; for 1h;70%
With diisobutylaluminium hydride In toluene for 16h; Cooling with ice; Reflux; Inert atmosphere;58%
With diisobutylaluminium hydride; sodium fluoride 1) toluene, reflux, 15 h; 2) toluene, water, 0 deg C --> rt; Yield given. Multistep reaction;
cyclen-glyoxal
74199-09-0, 79236-92-3

cyclen-glyoxal

A

ethylenediamine
107-15-3

ethylenediamine

B

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With ethylenediamine In waterA n/a
B 56%
8b-methyldecahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene

8b-methyldecahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With hydrogenchloride In water at 80℃; for 12h; Product distribution / selectivity; Heating / reflux;50%
30%-water sodium hydroxide

30%-water sodium hydroxide

cyclen-glyoxal
74199-09-0, 79236-92-3

cyclen-glyoxal

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
In sulfuric acid; toluene22%
In sulfuric acid; toluene22%
7-<2-(1,3-Dioxolan-2-yl)ethyl>-1,4,7,10-tetraazacyclododecane-1-carbaldehyde
137145-78-9

7-<2-(1,3-Dioxolan-2-yl)ethyl>-1,4,7,10-tetraazacyclododecane-1-carbaldehyde

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With water for 0.0833333h; Ambient temperature; pH 1; dealkylating reaction;
cis-octahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene-3,4-dione
368864-09-9

cis-octahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene-3,4-dione

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With dimethylsulfide borane complex In tetrahydrofuran for 48h; Hydrolysis; Heating;
trans-decahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene
261921-97-5

trans-decahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
Stage #1: trans-decahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene With hydrogenchloride; bromine In water at 20℃; Oxidation;
Stage #2: With sodium hydroxide In water for 36h; Hydrolysis; Heating;
1.121 g
C14H24N4

C14H24N4

A

cyclohexane-1,2-dione
765-87-7

cyclohexane-1,2-dione

B

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
With hydrogenchloride In water at 60℃; for 6h;
triethylentetramine
112-24-3

triethylentetramine

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 90 percent / ethanol / 3 h / 0 °C
2: 50 percent / cesium carbonate / acetonitrile / 96 h / 40 °C
3: hydrochloric acid / H2O / 6 h / 60 °C
View Scheme
Multi-step reaction with 3 steps
1: 90 percent / ethanol / 3 h / 0 °C
2: 90 percent / cesium carbonate / acetonitrile / 120 h / 40 °C
3: hydrochloric acid / H2O / 6 h / 60 °C
View Scheme
Multi-step reaction with 3 steps
1: 97 percent / Et3N / acetonitrile / 5 h / 20 °C
2: 78 percent / K2CO3 / dimethylformamide / 30 h / 100 °C
3: 33 percent / conc. H2SO4 / 28 h / 115 °C
View Scheme
C12H22N4

C12H22N4

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 50 percent / cesium carbonate / acetonitrile / 96 h / 40 °C
2: hydrochloric acid / H2O / 6 h / 60 °C
View Scheme
Multi-step reaction with 2 steps
1: 90 percent / cesium carbonate / acetonitrile / 120 h / 40 °C
2: hydrochloric acid / H2O / 6 h / 60 °C
View Scheme

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 78 percent / K2CO3 / dimethylformamide / 30 h / 100 °C
2: 33 percent / conc. H2SO4 / 28 h / 115 °C
View Scheme
Multi-step reaction with 2 steps
1: 1.) NaOEt / 1.) EtOH, reflux, 30 min, 2.) DMF, 110 deg C, 24 h
2: 54 percent / 96percent aq. H2SO4 / 72 h / 110 °C
View Scheme
Multi-step reaction with 2 steps
1: Bu4NI, 50 percent aq. NaOH / toluene / 10 h / Heating
2: 70 percent / phenol, 30 percent HBr, acetic acid / 14 h / 50 °C
View Scheme
Multi-step reaction with 2 steps
1: 86 percent / 5percent NaOH / tetrabutylammonium iodide / H2O; toluene / Heating; 8-10 h
2: 85 percent / conc. H2SO4 / 100 - 105 °C / Heating; 30-48 h
View Scheme
Multi-step reaction with 3 steps
1: potassium carbonate / N,N-dimethyl-formamide / 24 h / 35 °C
2: sulfuric acid / water / 24 h / 80 °C
3: sodium hydroxide / water; toluene
View Scheme

A

B

(OMe)2CHCH2-halide

(OMe)2CHCH2-halide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 60 percent / ethanol / 15 h
2: BH3*SMe2 / tetrahydrofuran / 48 h / Heating
View Scheme
1,4,7,10-Tetrazacyclodecane tetrahydrochloride

1,4,7,10-Tetrazacyclodecane tetrahydrochloride

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

Conditions
ConditionsYield
In chloroform
oxirane
75-21-8

oxirane

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis-(2-hydroxyethyl)-1,4,7,10-tetraazacyclododecane
67896-40-6

1,4,7,10-tetrakis-(2-hydroxyethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
In water100%
In ethanol at 5℃;69%
In water at 0℃; for 2h;
N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetraazatricyclo[5.5.1.04,13]tridecane
67705-42-4

1,4,7,10-tetraazatricyclo[5.5.1.04,13]tridecane

Conditions
ConditionsYield
In toluene at 120℃; Cyclization;100%
at 120℃;95%
In toluene
In toluene at 90 - 100℃; for 1h;
1,2-epoxytetradecane
3234-28-4

1,2-epoxytetradecane

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1-(2-hydroxytetradecyl)-1,4,7-10-tetraazacyclododecane

1-(2-hydroxytetradecyl)-1,4,7-10-tetraazacyclododecane

Conditions
ConditionsYield
In ethanol for 120h;100%
In ethanol
tert-butyl 2,5-dioxopyrrolidin-1-yl carbonate
13139-12-3

tert-butyl 2,5-dioxopyrrolidin-1-yl carbonate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

di-tert-butyl-1,4,7,10-tetraazacyclododecane-1,7-dicarboxylate
913542-69-5

di-tert-butyl-1,4,7,10-tetraazacyclododecane-1,7-dicarboxylate

Conditions
ConditionsYield
In chloroform at 20℃;100%
In chloroform100%
In chloroform at 20℃; for 31h;100%
N-(Benzyloxycarbonyloxy)succinimide
13139-17-8

N-(Benzyloxycarbonyloxy)succinimide

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetraaza-cyclododecane-1,7-dicarboxylic acid dibenzyl ester
162148-45-0

1,4,7,10-tetraaza-cyclododecane-1,7-dicarboxylic acid dibenzyl ester

Conditions
ConditionsYield
In chloroform at 20℃; for 48h;100%
In chloroform at 20℃; for 0.5h; Inert atmosphere;100%
In chloroform at 20℃; for 48h;
benzyl chloroformate
501-53-1

benzyl chloroformate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

4,10-bis((benzyloxy)carbonyl)-4,10-diaza-1,7-diazoniacyclododecane-1,7-diium chloride

4,10-bis((benzyloxy)carbonyl)-4,10-diaza-1,7-diazoniacyclododecane-1,7-diium chloride

Conditions
ConditionsYield
In chloroform at 20℃; for 24h; Cooling with ice;100%
Stage #1: benzyl chloroformate; 1,4,7,10-tetraazacyclododecan In chloroform Cooling with ice;
Stage #2: In chloroform at 20℃; for 24h;
100%
In chloroform Cooling with ice;100%
In chloroform at 0 - 20℃; for 10h;99%
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

2-chloro-N-[1-(1-naphthyl)ethyl]acetamide

2-chloro-N-[1-(1-naphthyl)ethyl]acetamide

N-[1-(1-naphthyl)ethyl]-1,4,7,10-tetraazacyclododecane-1-acetamide
1512804-14-6

N-[1-(1-naphthyl)ethyl]-1,4,7,10-tetraazacyclododecane-1-acetamide

Conditions
ConditionsYield
With triethylamine In chloroform Cooling; Reflux;100%
C14H21NO5S2

C14H21NO5S2

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C21H37N5O2S

C21H37N5O2S

Conditions
ConditionsYield
In chloroform at 20℃;100%
N-iodoacetyl ω-aminocaproic acid methyl ester

N-iodoacetyl ω-aminocaproic acid methyl ester

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C44H80N8O12

C44H80N8O12

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 50℃; for 18h;100%
N-iodoacetyl 3-amino-3-methylbutyric acid methyl ester

N-iodoacetyl 3-amino-3-methylbutyric acid methyl ester

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C40H72N8O12

C40H72N8O12

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 50℃; for 18h;100%
N-iodoacetyl p-aminomethylbenzoic acid methyl ester

N-iodoacetyl p-aminomethylbenzoic acid methyl ester

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C52H64N8O12

C52H64N8O12

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 60℃; for 18h;100%
formaldehyd
50-00-0

formaldehyd

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

β-cyanoethylisocyanide

β-cyanoethylisocyanide

3,3',3'',3'''-((1,4,7,10-tetrakis((1H-tetrazol-5-yl)methyl)-1,4,7,10-tetraazacyclododecane(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetrakis(methylene))tetrakis(1H-tetrazole-5,1-diyl))tetrapropanenitrile

3,3',3'',3'''-((1,4,7,10-tetrakis((1H-tetrazol-5-yl)methyl)-1,4,7,10-tetraazacyclododecane(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetrakis(methylene))tetrakis(1H-tetrazole-5,1-diyl))tetrapropanenitrile

Conditions
ConditionsYield
With trimethylsilylazide In methanol; acetonitrile100%
1-(3-bromopropyl)-3-carbamoylpyridin-1-ium bromide

1-(3-bromopropyl)-3-carbamoylpyridin-1-ium bromide

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1-(3-(1,4,7,10-tetraazacyclododecan-1-yl)propyl)-3-carbamoylpyridin-1-ium bromide

1-(3-(1,4,7,10-tetraazacyclododecan-1-yl)propyl)-3-carbamoylpyridin-1-ium bromide

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 20℃; for 0.5h; Inert atmosphere; Sonication;100%
N-(tert-butoxycarbonyl)-succinimide
41839-96-7

N-(tert-butoxycarbonyl)-succinimide

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

di-tert-butyl-1,4,7,10-tetraazacyclododecane-1,7-dicarboxylate
913542-69-5

di-tert-butyl-1,4,7,10-tetraazacyclododecane-1,7-dicarboxylate

Conditions
ConditionsYield
In chloroform100%
N-iodoacetyl-Gly-Tyr(t-Bu)-OMe

N-iodoacetyl-Gly-Tyr(t-Bu)-OMe

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C80H116N12O20

C80H116N12O20

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 70℃; for 24h;99%
N-iodoacetyl-Lys(Boc)-OMe

N-iodoacetyl-Lys(Boc)-OMe

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C64H116N12O20

C64H116N12O20

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 50℃; for 18h;99%
N-iodoacetyl-Gly-L-Tyr(O-propargyl)-OMe

N-iodoacetyl-Gly-L-Tyr(O-propargyl)-OMe

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C72H84N12O20

C72H84N12O20

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 70℃; for 18h;99%
glyoxal trimer dihydrate
4405-13-4

glyoxal trimer dihydrate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

cyclen-glyoxal
74199-09-0, 79236-92-3

cyclen-glyoxal

Conditions
ConditionsYield
In methanol at 0℃; for 3h;99%
In methanol at 0 - 20℃; for 2.5h;94%
In methanol; water at 20℃; for 3h;82%
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

7-(4-bromobutyloxy)-4-methyl-2H-chromen-2-one
70846-42-3

7-(4-bromobutyloxy)-4-methyl-2H-chromen-2-one

1,4,7,10-(7-(4-bromobutoxy)-4-methyl-coumarin) cyclen

1,4,7,10-(7-(4-bromobutoxy)-4-methyl-coumarin) cyclen

Conditions
ConditionsYield
With potassium carbonate In acetonitrile Reflux;98.8%
benzyl bromide
100-39-0

benzyl bromide

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1-benzyl-1,4,7,10-tetraazacyclododecane
112193-83-6

1-benzyl-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Stage #1: 1,4,7,10-tetraazacyclododecan With tris(dimethylamino)borane; sodium hydride In toluene for 4h; Heating;
Stage #2: benzyl bromide In toluene at 110℃; for 1h;
98%
In acetonitrile for 1h; Heating;89%
With sodium carbonate In acetonitrile89%
Glyoxal
131543-46-9

Glyoxal

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

cyclen-glyoxal
74199-09-0, 79236-92-3

cyclen-glyoxal

Conditions
ConditionsYield
In methanol; water at 20℃;98%
In methanol; water at 20℃; for 2h;95%
In water; acetonitrile91%
chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,7-bis(ethoxycarbonyl)-1,4,7,10-tetraazacyclododecane
162148-43-8

1,7-bis(ethoxycarbonyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With pH 2-398%
With hydrogenchloride for 24h;40%
pH=2.5; Acylation;
Stage #1: chloroformic acid ethyl ester; 1,4,7,10-tetraazacyclododecan pH=2 - 3;
Stage #2: With sodium hydroxide In water
benzyl chloroformate
501-53-1

benzyl chloroformate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetraaza-cyclododecane-1,7-dicarboxylic acid dibenzyl ester
162148-45-0

1,4,7,10-tetraaza-cyclododecane-1,7-dicarboxylic acid dibenzyl ester

Conditions
ConditionsYield
In ethanol for 24h;98%
Stage #1: benzyl chloroformate; 1,4,7,10-tetraazacyclododecan In chloroform; water at 0 - 20℃; for 10h;
Stage #2: With sodium hydroxide In chloroform
98%
In chloroform98%
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

2,4-bis(bromomethyl)-1,3,5-triethyl benzene
190779-61-4

2,4-bis(bromomethyl)-1,3,5-triethyl benzene

1,1′-((2,4,6-triethyl-1,3-phenylene)bis(methylene))bis(1,4,7,10-tetraazacyclo-dodecane)

1,1′-((2,4,6-triethyl-1,3-phenylene)bis(methylene))bis(1,4,7,10-tetraazacyclo-dodecane)

Conditions
ConditionsYield
With triethylamine In chloroform at 20℃; for 121.5h; Inert atmosphere;98%
C13H13ClN2O3

C13H13ClN2O3

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

C21H32N6O3

C21H32N6O3

Conditions
ConditionsYield
In chloroform; N,N-dimethyl-formamide at 20℃;97%
With potassium carbonate In chloroform; N,N-dimethyl-formamide at 20℃; for 24h;320 mg
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

1,4,7,10-Tetraazabicyclo[8.2.2]tetradecane-11,12-dione
260410-34-2

1,4,7,10-Tetraazabicyclo[8.2.2]tetradecane-11,12-dione

Conditions
ConditionsYield
In ethanol for 48h; Acylation;96%
In ethanol at 20℃; for 72h;93%
In ethanol
In ethanol for 24h; Reflux;
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

[4-(2-chloro-acetylamino)-butyl]-carbamic acid tert-butyl ester
133264-58-1

[4-(2-chloro-acetylamino)-butyl]-carbamic acid tert-butyl ester

[4-(2-{4,7,10-tris-[(4-tert-butoxycarbonylamino-butylcarbamoyl)-methyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetylamino)-butyl]-carbamic acid tert-butyl ester
913972-24-4

[4-(2-{4,7,10-tris-[(4-tert-butoxycarbonylamino-butylcarbamoyl)-methyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetylamino)-butyl]-carbamic acid tert-butyl ester

Conditions
ConditionsYield
With caesium carbonate; potassium iodide In acetonitrile for 120h; Heating;96%
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