DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:7149-18-0
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:7149-18-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, 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
Cas:7149-18-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHenan 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:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur 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
Cas:7149-18-0
Min.Order:1 Gram
FOB Price: $805.0
Type:Trading Company
inquiryThe 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
Cas:7149-18-0
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryJ&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
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 6 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
Cas:7149-18-0
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:7149-18-0
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong Mopai Biotechnology 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 chemicals. W
Cas:7149-18-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:7149-18-0
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:7149-18-0
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryhigh purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1. 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? We can also provide MT1 peptide powder2.
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Trading Company
inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryEthyl 2-amino-1-cyclopentene-1-carboxylate Application:Ethyl 2-amino-1-cyclopentene-1-carboxylate
We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white to yellow crystal powder Storage:Room temperature with sealed well Package:according to the clients requirement Applicatio
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Trading Company
inquirySupply top quality products with a reasonable price Application:api
Ethyl 2-amino-1-cyclopentene-1-carboxylate cas 7149-18-0Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Other
inquiryBest quality with low priceAppearance:light yellow crystalline powder Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryEthyl 2-amino-1-cyclopentene-1-carboxylateAppearance:light yellow crystalline powder Storage:KEEP COLD Package:Depended Application:pharmacetical Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to air
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryGood Quality Application:Medical or chemical
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Trading Company
inquiry1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:7149-18-0
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryHenan Sunlake Enterprise Corporation is located in Henan Province, the central plain of China , Which enjoys favorable geogeaphical position and convenient transportion. The comany was established in june 1998 , until now having more than 18 years
Cas:7149-18-0
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryPrice, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
Henan Wising Chem specializes in sourcing chemicals in China. We are associated with many trusted manufacturers each having different areas of expertise required for meeting the needs of our local as well as overseas buyers. We have access to custom
Cas:7149-18-0
Min.Order:500 Gram
Negotiable
Type:Lab/Research institutions
inquiryYinghao Pharm products include: leader molecule, heterocyclic compounds,chiral compounds, photoelectric materials, biochemical reagents etc. For example:benzene, pyrimidine, boricacid,pyridine, pyrazole, imidazole, pyrrole, fluorine and other derivat
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryUnited Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat
Cas:7149-18-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,Best Quality: Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so
Cas:7149-18-0
Min.Order:10 Gram
FOB Price: $1.0 / 2.0
Type:Trading Company
inquiryConditions | Yield |
---|---|
With ammonia; silica gel at 20℃; for 0.166667h; | 99% |
With ammonium acetate; tetraethoxy orthosilicate In ethanol Heating; | 90% |
With tetraethoxy orthosilicate; ammonium acetate In ethanol for 6h; Reflux; Inert atmosphere; | 82% |
4-Chlorobutyronitrile
ethyl bromoacetate
A
ethyl 2-amino-1-cyclopentene-1-carboxylate
B
(Z)-ethyl 2-(pyrrolidin-2-ylidene)acetate
Conditions | Yield |
---|---|
Stage #1: 4-Chlorobutyronitrile; ethyl bromoacetate With methanesulfonic acid; zinc In tetrahydrofuran for 1h; Blaise reaction; Reflux; Inert atmosphere; Stage #2: With potassium tert-butylate In tetrahydrofuran at 0 - 20℃; for 5h; Blaise reaction; Inert atmosphere; chemoselective reaction; | A 13% B 68% |
Stage #1: 4-Chlorobutyronitrile; ethyl bromoacetate With methanesulfonic acid; zinc In tetrahydrofuran for 1h; Blaise reaction; Reflux; Inert atmosphere; Stage #2: With sodium hexamethyldisilazane In tetrahydrofuran at 0℃; Blaise reaction; Inert atmosphere; Reflux; chemoselective reaction; | A 17% B 12% |
ethyl bromoacetate
4-bromobutanenitrile
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With methanesulfonic acid; zinc In tetrahydrofuran for 8h; Blaise reaction; Reflux; Inert atmosphere; chemoselective reaction; | 40% |
4-Chlorobutyronitrile
ethyl bromoacetate
A
ethyl 2-amino-1-cyclopentene-1-carboxylate
B
pyrrolidin-2-ylideneacetic acid ethyl ester
Conditions | Yield |
---|---|
With methanesulfonic acid; zinc In tetrahydrofuran for 15h; Blaise reaction; Reflux; Inert atmosphere; chemoselective reaction; | A 29% B 6% |
With methanesulfonic acid; zinc In tetrahydrofuran Inert atmosphere; Reflux; | A 29% B 6% |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Reaktion ueber mehrere Stufen 2: concentrated alcoholic ammonia / 140 - 150 °C View Scheme |
ethyl 2-[(ethoxycarbonyl)amino]-1-cyclopentene-1-carboxylate
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With sodium methylate In methanol |
Conditions | Yield |
---|---|
In toluene Heating; | 83% |
Conditions | Yield |
---|---|
In toluene Heating; | 78% |
ethyl 2-amino-1-cyclopentene-1-carboxylate
ethyl 2-isothiocyanatoacetate
Conditions | Yield |
---|---|
With pyridine for 2h; Heating; | 76% |
Conditions | Yield |
---|---|
In toluene Heating; | 66% |
Conditions | Yield |
---|---|
In toluene Heating; | 63% |
2-methylsulfanyl-4,5-dihydrothiazoline
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With acetic acid for 24h; Heating; | 60% |
Conditions | Yield |
---|---|
With pyridine for 2h; Heating; | 58% |
2-(methylthio)-1,4,5,6-tetrahydropyrimidine
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide at 160℃; for 10h; | 57% |
5,6-dihydro-2-(methylthio)-4H-1,3-thiazine
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With acetic acid for 24h; Heating; | 56% |
5-fluorothiophene-2-carbonitrile
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With potassium tert-butylate In 1,3,5-trimethyl-benzene at 150℃; for 4h; | 55% |
2-methylthioimidazoline
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide at 160℃; for 12h; | 52% |
Conditions | Yield |
---|---|
In toluene Heating; | 50% |
ethyl 2-amino-1-cyclopentene-1-carboxylate
phenyl isocyanate
N-(2-Carbethoxycyclopentenyl)-N'-phenylharnstoff
Conditions | Yield |
---|---|
In toluene Heating; | 45% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 25℃; for 12h; | 32% |
With pyridine In dichloromethane at 20℃; | 30% |
ethyl 2-amino-1-cyclopentene-1-carboxylate
acetic anhydride
2-acetylaminocyclopent-1-enecarboxylic acid ethyl ester
ethyl 2-amino-1-cyclopentene-1-carboxylate
phenyl isocyanate
3-phenyl-1,5,6,7-tetrahydro-cyclopentapyrimidine-2,4-dione
Conditions | Yield |
---|---|
With pyridine; xylene |
ethyl 2-amino-1-cyclopentene-1-carboxylate
methyl thioisocyanate
3-methyl-2-thioxo-2,3,6,7-tetrahydro-1H-cyclopenta[d]pyrimidin-4(5H)-one
Conditions | Yield |
---|---|
With pyridine; xylene |
ethyl 2-amino-1-cyclopentene-1-carboxylate
diethyl malonate
2,4-dihydroxy-6,7-dihydro-5H-[1]pyrindine-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With ethanol; sodium ethanolate at 110℃; |
ethyl 2-amino-1-cyclopentene-1-carboxylate
Di-(2-carboxycyclopentyl)amin
Conditions | Yield |
---|---|
With hydrogen; platinum(IV) oxide In acetic acid |
ethyl 2-amino-1-cyclopentene-1-carboxylate
sodium ethanolate
diethyl malonate
Conditions | Yield |
---|---|
at 110℃; |
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: pyridine / tetrahydrofuran / Heating 2: H2; HBF4; (S)-[2,2'-bis(PPh2)-6,6'-(1,3-propylidenedioxy)]biphenyl / Ru(COD)(methallyl)2 / ethanol / 18 h / 20 °C / 38000 Torr View Scheme | |
Multi-step reaction with 2 steps 1: toluene / 2 h / 75 °C / Inert atmosphere 2: [bis(2-methylallyl)cycloocta-1,5-diene]ruthenium(II); (S)-(1,1'-binaphthalene)-2,2'-diylbis(diphenylphosphine); tetrafluoroboric acid dimethyl ether complex; hydrogen / methanol / 0 - 50 °C / 3878.71 Torr / Inert atmosphere View Scheme |
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 58 percent / pyridine / 2 h / Heating 2: 68 percent / NaOEt / ethanol / 1 h / 20 °C View Scheme |
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 76 percent / pyridine / 2 h / Heating 2: 73 percent / NaOEt / ethanol / 1 h / 20 °C View Scheme |
ethyl 2-amino-1-cyclopentene-1-carboxylate
3-phenyl-1,5,6,7-tetrahydro-cyclopentapyrimidine-2,4-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 45 percent / toluene / Heating 2: 61 percent / aq. NaOH / Heating View Scheme |
ethyl 2-amino-1-cyclopentene-1-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 83 percent / toluene / Heating 2: 70 percent / aq. NaOH / Heating View Scheme |
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