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
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inquiry1.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
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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
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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
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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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
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inquiryWhy Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
Cas:1015423-45-6
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inquiryProduct Name: 4,6-DibroMothieno[3,4-c]furan-1,3-dione Synonyms: 2,5-Dibromo-3,4-thiophenedicarboxylic Anhydride;4,6-DibroMothieno[3,4-c]furan-1,3-dione;THFN-2Br;Dibromothieno[3,4-c]furan-1,3-dione;2,5-Dibromo-3,4-thiophenedicarboxylic Anhydride
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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:1015423-45-6
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
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inquirySAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe
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inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
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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
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inquiry"HANGZHOU TIANYE CHEMICALS Co.LTD , Located in Eastern Science and Innovation Park Hangzhou .We are a high-tech enterprise specialized in technical research and development, production, development and trade of chemical products. We supply Multiple s
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inquirySupply top quality products with a reasonable price Application:api
4,6-dibromothieno[3,4-c]furan-1,3-dioneAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
The factory supplies Application:manufacturing supplies
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:1015423-45-6
Min.Order:0
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Type:Trading Company
inquiryOur mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical
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Cas:1015423-45-6
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiry1. Subsidiary of Institute of Chemistry, Henan Academy of Sciences, national research platform;2. About 30 years’ experience in this field since 1983;3. An experienced R&D team consisting of Doctors and Masters;4. Various types of analytical instrume
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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
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inquiryIt is a high-tech enterprise integrating R&D, production and sales of APIs, pharmaceutical intermediates, fine chemicals and special catalysts.Appearance:See details Storage:Room temperature Package:See details Application:Pharmaceutical intermediate
Cas:1015423-45-6
Min.Order:1 Metric Ton
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryStrong R&D strength and team We have a R&D team with around 30 R&D personnel.All of our employees have chemical backgrounds and have worked in the chemical industry for many years.Our laboratory can synthesize target products with wei
1. Production capacity: we have three production base with high-tech production equipment and instruments, equipped with professional production personnel, meet your requirements.2. Quality assurance: we have a first-class testing equipment and testi
ex factoryAppearance:White powder Storage:Far from fire and heat, keep in cool place Package:1kg/bag; 25kg/drum, or as customer's request. Application:synthesis Transportation:DHL, EMS, FedEx, TNT, AIR, SEA Port:Shanghai, Beijing, Guangzhou, HK
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inquiryThis chemical is produced by SunaTech Inc., which is high purity, stable quality, long-term supply, etc. We also provide service of custom synthesis according to your request. Package:Glass vials/bottles wrapped with aluminum foil bag package. For li
Strong ability in R&D, Production capacity:gram to kg to Ton with lowest cost.we own independent R&D in changzhou city. All our manufacture bases and facilities are GMP approved. Supported by our highly qualified team of professionals and technic
Cas:1015423-45-6
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Type:Lab/Research institutions
inquiry2,5-dibromo-3,4-dicarboxylic acid thiophene
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
With acetic anhydride at 140℃; | 96% |
With acetic anhydride Inert atmosphere; | 81% |
With acetic anhydride Inert atmosphere; | 51% |
thiophene-3,4-dicarboxylic acid
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: acetic acid; bromine / Inert atmosphere 2: acetic anhydride / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: bromine; acetic acid / Inert atmosphere 2: acetic anhydride / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: bromine; acetic acid / Inert atmosphere 2: acetic anhydride / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: bromine / acetic acid / 85 °C 2: acetic anhydride / 140 °C View Scheme | |
With acetic anhydride; sodium bromide In dimethyl sulfoxide at 20 - 120℃; for 16.1h; Reagent/catalyst; Temperature; |
acetic anhydride
2,5-dibromo-3,4-dicarboxylic acid thiophene
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
at 140℃; for 12h; Inert atmosphere; |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
With bromine In acetic acid | |
With bromine In acetic acid |
3-(3,5,7,9,11,13,15-heptaisobutylpentacyclo[9,5,1,1(3,9),1(7,13),1(5,15)]octasiloxane-1-yl)propylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
Stage #1: 3-(3,5,7,9,11,13,15-heptaisobutylpentacyclo[9,5,1,1(3,9),1(7,13),1(5,15)]octasiloxane-1-yl)propylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 4h; Inert atmosphere; Stage #2: With thionyl chloride at 55℃; for 3h; Inert atmosphere; | 92% |
tetradecylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-tetradecyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: tetradecylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride at 55℃; for 4h; Inert atmosphere; | 89% |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
2,4,6-triisopropylaniline
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde; 2,4,6-triisopropylaniline In tetrahydrofuran at 50℃; for 4h; Schlenk technique; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Schlenk technique; | 88% |
1-Heptylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(n-heptyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: 1-Heptylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 86% |
2-Ethylhexylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(2-ethylhexyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: 2-Ethylhexylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride at 55℃; for 4h; Inert atmosphere; | 86% |
n-Octylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-octylthieno[3,4-c]pyrrole-4,6-dione
Conditions | Yield |
---|---|
Stage #1: n-Octylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 84% |
Stage #1: n-Octylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride at 55℃; for 4h; Inert atmosphere; | 84% |
hexan-1-amine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(n-hexyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: hexan-1-amine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 82% |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
With ammonia In tetrahydrofuran; methanol for 0.5h; | 73% |
2-n-hexyldecan-1-amine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(2-hexyldecyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: 2-n-hexyldecan-1-amine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 68% |
2-octyldodecylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(2-octyl-1-dodecly)-4H-thieno[3,4-c]pyrrol-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: 2-octyldodecylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 68% |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde With ammonia In tetrahydrofuran Stage #2: With oxalyl dichloride In tetrahydrofuran | 60% |
Multi-step reaction with 2 steps 1: ammonia / tetrahydrofuran; methanol / 0.5 h 2: triethylamine; 1,1'-carbonyldiimidazole / tetrahydrofuran / 12 h / 20 °C View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; | 59% |
2-decyl-1-tetradecylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
Stage #1: 2-decyl-1-tetradecylamine; 2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde In tetrahydrofuran at 50℃; for 3h; Inert atmosphere; Stage #2: With thionyl chloride In tetrahydrofuran at 55℃; for 4h; Inert atmosphere; | 58% |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
With acetic acid for 72h; Inert atmosphere; Schlenk technique; Reflux; | 52% |
4-trifluoromethylphenylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
C13H6Br2F3NO3S
Conditions | Yield |
---|---|
In toluene for 24h; Inert atmosphere; Reflux; |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
4-fluoroaniline
C12H6Br2FNO3S
Conditions | Yield |
---|---|
In toluene for 24h; Inert atmosphere; Reflux; |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
aniline
2,5-dibromo-4-(phenylcarbamoyl)thiophene-3-carboxylic acid
Conditions | Yield |
---|---|
In toluene for 24h; Inert atmosphere; Reflux; |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
4-methoxy-aniline
C13H9Br2NO4S
Conditions | Yield |
---|---|
In toluene for 24h; Inert atmosphere; Reflux; |
n-Octylamine
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
C14H19Br2NO3S
Conditions | Yield |
---|---|
In toluene for 24h; Inert atmosphere; Reflux; |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(4-trifluoromethylphenyl)thieno[3,4-c]pyrrole-4,6-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene / 24 h / Inert atmosphere; Reflux 2: thionyl chloride / 12 h / 90 °C / Inert atmosphere View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(4-fluorophenyl)thieno[3,4-c]pyrrole-4,6-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene / 24 h / Inert atmosphere; Reflux 2: thionyl chloride / 12 h / 90 °C / Inert atmosphere View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-phenylthieno[3,4-c]pyrrole-4,6-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene / 24 h / Inert atmosphere; Reflux 2: thionyl chloride / 12 h / 90 °C / Inert atmosphere View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
1,3-dibromo-5-(4-methoxyphenyl)thieno[3,4-c]pyrrole-4,6-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene / 24 h / Inert atmosphere; Reflux 2: thionyl chloride / 12 h / 90 °C / Inert atmosphere View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
C8H3Br2NO3S
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: ammonia / tetrahydrofuran 2: sodium hydride / tetrahydrofuran View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
2,4,6-triisopropylaniline
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: tetrahydrofuran / 4 h / 50 °C / Schlenk technique; Inert atmosphere 1.2: 4 h / 55 °C / Schlenk technique 2.1: bis[tris(2-methylphenyl)phosphine]palladium / N,N-dimethyl-formamide / 0.5 h / 60 °C / Schlenk technique; Inert atmosphere View Scheme |
2,5-dibromothiophene-3,4-dicarboxylic acid anhydryde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: acetic acid / 72 h / Inert atmosphere; Schlenk technique; Reflux 2: bis(dibenzylideneacetone)-palladium(0); tris-(o-tolyl)phosphine / toluene; N,N-dimethyl-formamide / 24 h / 115 °C / Inert atmosphere; Schlenk technique View Scheme |
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