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
Cas:257-07-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:257-07-8
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
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:257-07-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryDibenz-(b,f)-1,4-oxazephine CAS:257-07-8 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
Cas:257-07-8
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:257-07-8
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:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater
Cas:257-07-8
Min.Order:0 Metric Ton
FOB Price: $18.0 / 20.0
Type:Lab/Research institutions
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:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZibo 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
Cas:257-07-8
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe 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
Cas:257-07-8
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryOur 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
Cas:257-07-8
Min.Order:0
Negotiable
Type:Trading Company
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:257-07-8
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:257-07-8
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:257-07-8
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
We 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:257-07-8
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryWe produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Cas:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
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:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirybenzo[b][1,4]benzoxazepine Application:benzo[b][1,4]benzoxazepine
Dibenz[b,f][1,4]oxazepine cas 257-07-8Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
Cas:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWuhan Xinweiye Chemical Co., Ltd. is mainly engaged in the process development and production of customized synthesis and pharmaceutical intermediates. We have professional researchers in organic synthesis, analytical chemistry and production process
Cas:257-07-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry2-Fluorobenzaldehyde
2-amino-phenol
A
dibenz[b,f][1,4]oxazepine
B
2-(2-fluorophenyl)benzo[d]oxazole
Conditions | Yield |
---|---|
With oxygen; 1,3-diethyl-1H-benzo[d]imidazol-3-ium bromide; sodium hydroxide In o-xylene; para-xylene; m-xylene at 120℃; for 10h; Molecular sieve; Green chemistry; | A 25% B 65% |
Conditions | Yield |
---|---|
With poly(ethylene glycol)-400; potassium carbonate at 100℃; for 8h; Product distribution; Further Variations:; Reagents; Solvents; Temperatures; time; | 89% |
Stage #1: 2-amino-phenol In polyethylene glycol (300) at 50℃; for 0.5h; Stage #2: 2-Fluorobenzaldehyde In polyethylene glycol (300) at 50℃; for 10h; Stage #3: With potassium carbonate In polyethylene glycol (300) at 100℃; for 10h; | 80% |
With potassium carbonate at 100℃; Sealed tube; | 58% |
Conditions | Yield |
---|---|
Stage #1: 2-[(2-chlorobenzylidene)amino]phenol With potassium hydroxide In methanol at 20℃; for 0.583333h; Stage #2: In dimethyl sulfoxide at 120℃; for 2h; Further stages.; | 75% |
Stage #1: 2-[(2-chlorobenzylidene)amino]phenol With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: In dimethyl sulfoxide at 150℃; for 6h; | |
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
Conditions | Yield |
---|---|
With potassium hydroxide In N,N-dimethyl-formamide at 120℃; for 0.1h; Temperature; Reagent/catalyst; Microwave irradiation; | 87% |
Stage #1: 2-chloro-benzaldehyde; 2-amino-phenol In 5,5-dimethyl-1,3-cyclohexadiene for 2h; Reflux; Stage #2: In 5,5-dimethyl-1,3-cyclohexadiene at 120℃; for 24h; Stage #3: With sodium In 5,5-dimethyl-1,3-cyclohexadiene for 6h; Reflux; | 75% |
Conditions | Yield |
---|---|
With tetrabutylammonium acetate; palladium diacetate; 1,2-diamino-benzene In N,N-dimethyl-formamide at 120℃; Microwave irradiation; | 82% |
Conditions | Yield |
---|---|
With polyphosphiric acid; trichlorophosphate at 120 - 130℃; for 2h; Cyclization; | 75% |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With polyphosphiric acid; trichlorophosphate at 120 - 130℃; for 2h; Cyclization; | 56% |
Conditions | Yield |
---|---|
With potassium carbonate at 100℃; for 5h; | 68% |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme | |
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme | |
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
A
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With polyphosphiric acid; trichlorophosphate at 120 - 130℃; for 2h; Cyclization; | A 23% B 31% |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme | |
Multi-step reaction with 3 steps 1: potassium tert-butylate / N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme | |
Multi-step reaction with 3 steps 1: sodium hydrogencarbonate / N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
2-(2-nitrophenoxy)benzaldehyde
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With iron In methanol; water for 6h; Reflux; |
2-phenoxybenzamide
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With PPA at 120 - 130℃; Cyclization; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; Microwave irradiation; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
2-iodobenzaldehyde
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 3: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
2-Hydroxy-N-<2-brom-benzyliden>-anilin
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
C13H10INO
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-dimethyl-formamide / 140 °C / Microwave irradiation 2: N,N-dimethyl-formamide / 140 °C / Microwave irradiation View Scheme |
S-phenyl 2-diazoethanethiolate
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
In toluene at 80℃; for 1.5h; Staudinger reaction; | 99% |
In benzene at 80℃; for 1h; | 99% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 3h; Catalytic behavior; Solvent; Friedel-Crafts Alkylation; | 99% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 3h; Friedel-Crafts Alkylation; | 99% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 3h; Friedel-Crafts Alkylation; | 99% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate In ethanol; N,N-dimethyl-formamide at 50℃; for 1h; Time; Reagent/catalyst; | 98% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 1.5h; Friedel-Crafts Alkylation; | 98% |
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; diastereoselective reaction; | 93% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; diastereoselective reaction; | 93% |
Conditions | Yield |
---|---|
With p-toluenesulfonic acid monohydrate In tetrahydrofuran at 20℃; for 24h; Reagent/catalyst; diastereoselective reaction; | 93% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 24h; diastereoselective reaction; | 93% |
Conditions | Yield |
---|---|
With 1-[3,5-bis(trifluoromethyl)phenyl]-3-{(S)[(2S,4S,5R)-5-ethyl-1-aza-bicyclo[2.2.2]oct-2-yl]-(6-methoxy-4-quinolinyl)methyl}thiourea; 2,2,2-trifluoroethanol In 1,2-dichloro-ethane at 4℃; for 30h; Catalytic behavior; Reagent/catalyst; Solvent; Temperature; enantioselective reaction; | 93% |
Conditions | Yield |
---|---|
With (S)-CPA; silver(I) acetate In 1,4-dioxane at 15℃; for 72h; enantioselective reaction; | 92% |
Conditions | Yield |
---|---|
With L-proline In N,N-dimethyl-formamide at 20℃; Molecular sieve; enantioselective reaction; | 92% |
dibenz[b,f][1,4]oxazepine
1-benzyl-3-diazo-1,3-dihydro-2H-indol-2-one
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; diastereoselective reaction; | 92% |
dibenz[b,f][1,4]oxazepine
1-benzoyl-3- diazoindolin-2-one
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; diastereoselective reaction; | 92% |
dibenz[b,f][1,4]oxazepine
1-benzyl-3-diazo-1,3-dihydro-2H-indol-2-one
Conditions | Yield |
---|---|
With p-toluenesulfonic acid monohydrate In diethyl ether at 20℃; for 24h; Reagent/catalyst; Solvent; diastereoselective reaction; | 92% |
Conditions | Yield |
---|---|
In para-xylene at 20℃; for 24h; diastereoselective reaction; | 92% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In tetrahydrofuran at 20℃; for 0.5h; Friedel-Crafts Alkylation; | 91% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In tetrahydrofuran at 20℃; for 1.5h; Friedel-Crafts Alkylation; | 91% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; Solvent; Temperature; Reagent/catalyst; diastereoselective reaction; | 91% |
tert-butyl 3-diazo-2-oxoindoline-1-carboxylate
dibenz[b,f][1,4]oxazepine
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In tetrahydrofuran at 15 - 20℃; for 24h; diastereoselective reaction; | 91% |
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