Products

Refine

Country

Business Type

Certificate

Display

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

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

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 Thiophene-3,4-dicarboxylic acid with high purity

Cas:4282-29-5

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

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

3,4-Thiophenedicarboxylic acid

Cas:4282-29-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com Product Name Thiophene-3,4-dicarboxylic acid CAS No.

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:1 Gram

FOB Price: $12.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Our 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 on.O

THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5

Cas:4282-29-5

Min.Order:1 Metric Ton

FOB Price: $500.0

Type:Lab/Research institutions

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

Pharmaceutical Grade CAS 4282-29-5 with competitive price

Cas:4282-29-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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

3,4-Thiophenedicarboxylicacid 4282-29-5

Cas:4282-29-5

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 prese

3,4-Thiophenedicarboxylic acid

Cas:4282-29-5

Min.Order:1 Kilogram

FOB Price: $68.0 / 75.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

THIOPHENE-3,4-DICARBOXYLIC ACID CAS:4282-29-5 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 o

THIOPHENE-3,4-DICARBOXYLIC ACID CAS:4282-29-5

Cas:4282-29-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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.:4282-29-5

Cas:4282-29-5

Min.Order:0

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

THIOPHENE-3,4-DICARBOXYLIC ACID

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Hope Chem Co., Ltd

1. Product advantages: exquisite appearance and unique functions. 2. Product Advantages: Our products are the best,fast speed ,in large stock 3. High-quality products and thoughtful service are your greatest satisfaction. 4. The product

3,4-Thiophenedicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shaanxi Cuicheng Biomedical Technology Co., Ltd.

Why 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

Retatrutide

Cas:4282-29-5

Min.Order:1 Gram

Negotiable

Type:Other

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 quality Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be

High quality 4282-29-5 Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Siwei Development Group Ltd.

Product name: Thiophene-3,4-Dicarboxylic Acid CAS No.:4282-29-5 Molecule Formula:C6H4O4S Molecule Weight:172.15 Purity: 99.0% Package: 25kg/drum Description:Colorless to light yellow transparent liquid Manufacture Standards:Enterprise Standard

Best Quality Thiophene-3,4-Dicarboxylic Acid

Cas:4282-29-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: THIOPHENE-3,4-DICARBOXYLIC ACID Synonyms: 3,4-THIOPHENEDICARBOXYLIC ACID;THIOPHENE-3,4-DICARBOXYLIC ACID;3,4-Thiophenedicarboxylic acid,97%;3,4-Dicarboxythiophene;3,4-Thiophenedicarboxylic acid ,98%;THIOPHENE-3,4-DICARBOXYLATE;100

THIOPHENE-3,4-DICARBOXYLIC ACID

Cas:4282-29-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

SAGECHEM 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

SAGECHEM/3,4-Dicarboxythiophene

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High 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

3,4-Thiophenedicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

GIHI CHEMICALS CO.,LIMITED

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

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Other

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec Thiophene-3,4-dicarboxylic acid 100g

Cas:4282-29-5

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high qualityAppearance:white crystalline powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

Methyl 2-amino-2-(pyridin-2-yl)acetate

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

YUNBIO TECH CO.,LTD

1.High quality2. Free sample available3. Competitive price4.Experienced service team5.Fast delivery6.Considerate after-sale service Package:as per customers' request Application:Biological reagent Port:Beijing airport

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Antimex Chemical Limied

Ansciep 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

3,4-Thiophenedicarboxylicacid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen AmoyChem Co.,Ltd

Amoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi

Thiophene-3,4-dicarboxylic acid

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Other

inquiry

Guangdong Juda Chemical Industrial Co.,Limited

Appearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China

THIOPHENE-3,4-DICARBOXYLIC ACID CAS No.4282-29-5

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Wuhan Circle Star Chem-medical Technology co.,Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:25kg,50kg,180kg,200kg,250kg,1000kg,customization Application:Pharma;Industry;Agricultural;chemical reaserch Tran

THIOPHENE-3,4-DICARBOXYLIC ACID

Cas:4282-29-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

3,4-dicyanothiophene
18853-32-2

3,4-dicyanothiophene

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With potassium hydroxide In ethylene glycol for 4h; Heating;90%
Stage #1: 3,4-dicyanothiophene With potassium hydroxide In ethylene glycol
Stage #2: With hydrogenchloride; water In ethylene glycol
88%
With potassium hydroxide In water; ethylene glycol88%
dimethyl thiophene-3,4-dicarboxylate
4282-35-3

dimethyl thiophene-3,4-dicarboxylate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With sodium hydroxide In water at 80℃;80%
C9H10O4S

C9H10O4S

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With sodium hydroxide at 80℃;66%
3,4-diiodothiophene
19259-08-6

3,4-diiodothiophene

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With n-butyllithium; diethyl ether at -60℃; Behandeln des Reaktionsgemisches mit festem Kohlendioxid;
diethyl 2-formyl-3-(diethoxymethyl)succinate
73926-95-1

diethyl 2-formyl-3-(diethoxymethyl)succinate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With phosphorous (V) sulfide; toluene Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge;
Multi-step reaction with 2 steps
1: P2S5 / toluene / 2 h / Heating
2: aq. NaOH / ethanol / Heating
View Scheme
3,4-thiophenedicarboxylic acid monomethyl ester
4282-30-8

3,4-thiophenedicarboxylic acid monomethyl ester

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With sodium hydroxide In methanol; water at 41.1℃; Kinetics; various solvents, various temperatures;
diethyl thiophene-3,4-dicarboxylate
53229-47-3

diethyl thiophene-3,4-dicarboxylate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With sodium hydroxide In ethanol Heating; Yield given;
diethyl 2-(diethoxymethyl)succinate
70145-29-8

diethyl 2-(diethoxymethyl)succinate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium ethylate; diethyl ether
2: toluene; phosphorus (V)-sulfide / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge
View Scheme
diethyl 2-formylbutanedioate
5472-38-8

diethyl 2-formylbutanedioate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: ethanol; sulfuric acid
2: sodium ethylate; diethyl ether
3: toluene; phosphorus (V)-sulfide / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge
View Scheme
3,4-dibromothiophene
3141-26-2

3,4-dibromothiophene

carbon dioxide
124-38-9

carbon dioxide

A

4-bromo-3-thiophenecarboxylic acid
16694-17-0

4-bromo-3-thiophenecarboxylic acid

B

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
With n-butyllithium In diethyl ether
3,4-dibromothiophene
3141-26-2

3,4-dibromothiophene

carbon dioxide
124-38-9

carbon dioxide

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Stage #1: 3,4-dibromothiophene With n-butyllithium In diethyl ether at -70.16℃; for 0.5h;
Stage #2: carbon dioxide In diethyl ether for 3h; Cooling with ether-dry ice;
2,3-Dimethylmaleic anhydride
766-39-2

2,3-Dimethylmaleic anhydride

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: toluene-4-sulfonic acid / methanol / Reflux; Inert atmosphere
2: N-Bromosuccinimide; dibenzoyl peroxide / tetrachloromethane / 6 h / Inert atmosphere; Reflux
3: sodiumsulfide nonahydrate / tetrahydrofuran / 1 h / 20 °C
4: 3-chloro-benzenecarboperoxoic acid / 6 h / 20 °C
5: acetic anhydride / Inert atmosphere; Reflux
6: sodium hydroxide / water / 80 °C
View Scheme
dimethyl (Z)-2,3-dimethyl-2-butenedioate
13314-92-6

dimethyl (Z)-2,3-dimethyl-2-butenedioate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: N-Bromosuccinimide; dibenzoyl peroxide / tetrachloromethane / 6 h / Inert atmosphere; Reflux
2: sodiumsulfide nonahydrate / tetrahydrofuran / 1 h / 20 °C
3: 3-chloro-benzenecarboperoxoic acid / 6 h / 20 °C
4: acetic anhydride / Inert atmosphere; Reflux
5: sodium hydroxide / water / 80 °C
View Scheme
(E/Z)-Dimethyl 2,3-bis-butenedioate
80356-26-9, 80356-27-0

(E/Z)-Dimethyl 2,3-bis-butenedioate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: sodiumsulfide nonahydrate / tetrahydrofuran / 1 h / 20 °C
2: 3-chloro-benzenecarboperoxoic acid / 6 h / 20 °C
3: acetic anhydride / Inert atmosphere; Reflux
4: sodium hydroxide / water / 80 °C
View Scheme
3,4-dimethyl 2,5-dihydrothiophene-3,4-dicarboxylate
20946-32-1

3,4-dimethyl 2,5-dihydrothiophene-3,4-dicarboxylate

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 3-chloro-benzenecarboperoxoic acid / 6 h / 20 °C
2: acetic anhydride / Inert atmosphere; Reflux
3: sodium hydroxide / water / 80 °C
View Scheme
C8H10O5S

C8H10O5S

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: acetic anhydride / Inert atmosphere; Reflux
2: sodium hydroxide / water / 80 °C
View Scheme
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

1H,3H-thieno[3,4-c]furan-1,3-dione
6007-85-8

1H,3H-thieno[3,4-c]furan-1,3-dione

Conditions
ConditionsYield
With acetic anhydride at 110℃;100%
With acetic anhydride at 140℃; for 12h;95%
With acetic anhydride93%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

thiophene-3,4-dicarboxylic acid chloride
33527-26-3

thiophene-3,4-dicarboxylic acid chloride

Conditions
ConditionsYield
With oxalyl dichloride In N,N-dimethyl-formamide; toluene at 111℃; for 2h; Schlenk technique; Inert atmosphere;96%
With thionyl chloride for 1h; Heating;
With oxalyl dichloride; N,N-dimethyl-formamide In 1,2-dichloro-ethane at 20 - 60℃; for 1.33333h; Inert atmosphere;
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

octanol
111-87-5

octanol

dioctyl thiophene-3,4-dicarboxylate
1392422-45-5

dioctyl thiophene-3,4-dicarboxylate

Conditions
ConditionsYield
With chloro-trimethyl-silane at 65℃; for 24h; Inert atmosphere;90%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

2-butyloctan-1-amine

2-butyloctan-1-amine

5-(2-butyloctyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

5-(2-butyloctyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 75℃; for 2h;
Stage #2: 2-butyloctan-1-amine With dmap In 1,4-dioxane at 55 - 80℃;
88.41%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

2,5-dibromo-3,4-dicarboxylic acid thiophene
190723-12-7

2,5-dibromo-3,4-dicarboxylic acid thiophene

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic acid for 0.5h; Cooling with ice;
Stage #2: With bromine at 85℃; Cooling with ice;
87.2%
With bromine; acetic acid at 20℃; for 12h;85.6%
With bromine In acetic acid80%
methanol
67-56-1

methanol

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

dimethyl thiophene-3,4-dicarboxylate
4282-35-3

dimethyl thiophene-3,4-dicarboxylate

Conditions
ConditionsYield
With sulfuric acid Reflux;84%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride at 20℃;23%
With sulfuric acid
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

diphenyl acetylene
501-65-5

diphenyl acetylene

4-oxo-6,7-diphenyl-4H-thieno[3,2-c]pyran-3-carboxylic acid

4-oxo-6,7-diphenyl-4H-thieno[3,2-c]pyran-3-carboxylic acid

Conditions
ConditionsYield
With [ruthenium(II)(η6-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]2; tetrabutylammomium bromide In N,N-dimethyl-formamide at 100℃; for 16h; Sealed tube;82%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

[4-(hydroxymethyl)-3-thienyl]methanol
18354-73-9

[4-(hydroxymethyl)-3-thienyl]methanol

Conditions
ConditionsYield
With diisobutylaluminium hydride In tetrahydrofuran; hexane at 0 - 20℃; for 16h;77%
With diisobutylaluminium hydride
Multi-step reaction with 2 steps
1: oxalyl dichloride; N,N-dimethyl-formamide / 1,2-dichloro-ethane / 1.33 h / 20 - 60 °C / Inert atmosphere
2: lithium aluminium tetrahydride / tetrahydrofuran / 3 h / 20 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / 20 °C
2: diisobutylaluminium hydride / dichloromethane; toluene / 0.08 h / 0 °C
View Scheme
With borane-THF In tetrahydrofuran at 0 - 26℃; for 24h; Inert atmosphere;
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

N-butylamine
109-73-9

N-butylamine

5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
1428567-53-6

5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃; for 24h; Inert atmosphere; Schlenk technique; Molecular sieve;
Stage #2: N-butylamine In toluene for 24h; Inert atmosphere; Schlenk technique; Reflux;
Stage #3: With thionyl chloride at 88℃; Inert atmosphere; Schlenk technique;
77%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

thieno[3,4-c]pyrrole-4,6-dione
6007-82-5

thieno[3,4-c]pyrrole-4,6-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With ammonium hydroxide In water Heating;
Stage #2: at 260 - 280℃;
76%
4,4'-bipyridine
553-26-4

4,4'-bipyridine

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

cadmium(II) acetate dihydrate
5743-04-4

cadmium(II) acetate dihydrate

2C6H3O4S(1-)*Cd(2+)*C10H8N2

2C6H3O4S(1-)*Cd(2+)*C10H8N2

Conditions
ConditionsYield
In water at 140℃; for 120h; Sealed tube;76%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

2-n-hexyldecan-1-amine
62281-05-4

2-n-hexyldecan-1-amine

5-(2-hexyldecyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
1355961-59-9

5-(2-hexyldecyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
at 220 - 250℃; Inert atmosphere; Dean-Stark;74%
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 75℃; for 2h;
Stage #2: 2-n-hexyldecan-1-amine With dmap In 1,4-dioxane at 55℃; for 20h;
Stage #3: With acetic anhydride In 1,4-dioxane at 80℃; for 4h;
66%
2-Ethylhexylamine
104-75-6

2-Ethylhexylamine

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

5-(2-ethylhexyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
1231160-82-9

5-(2-ethylhexyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: 2-Ethylhexylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 4h; Reflux;
73.6%
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: 2-Ethylhexylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride In toluene Reflux;
65%
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: 2-Ethylhexylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 4h; Reflux;
48%
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: 2-Ethylhexylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 12h; Reflux;
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: 2-Ethylhexylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 12h; Reflux;
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

Mo2(O2C(t)Bu)4
55946-68-4

Mo2(O2C(t)Bu)4

toluene
108-88-3

toluene

Mo8(O2C(t)Bu)4(μ-SC4H2-3,4-(CO2)2)6*1.9toluene

Mo8(O2C(t)Bu)4(μ-SC4H2-3,4-(CO2)2)6*1.9toluene

Conditions
ConditionsYield
In toluene under inert atm. suspn. Mo2(O2C-t-Bu)4 and SC4H2-3,4-(COOH)2 in toluene was stirred for 21 days; ppt. was centrifuged, washed with toluene and hexane and dried in vacuo;elem. anal.;70%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

W2(O2C(t)Bu)4
86728-84-9

W2(O2C(t)Bu)4

W8(O2C(t)Bu)4(μ-SC4H2-3,4-(CO2)2)6
872603-00-4

W8(O2C(t)Bu)4(μ-SC4H2-3,4-(CO2)2)6

Conditions
ConditionsYield
In toluene under inert atm. suspn. W2(O2C-t-Bu)4 and SC4H2-3,4-(COOH)2 in toluene was stirred for 28 days; ppt. was centrifuged, washed with toluene and hexane and dried in vacuo;68%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

ethanol
64-17-5

ethanol

diethyl thiophene-3,4-dicarboxylate
53229-47-3

diethyl thiophene-3,4-dicarboxylate

Conditions
ConditionsYield
With sulfuric acid Fischer-Speier Esterification; Reflux;61%
With sulfuric acid
With sulfuric acid In water Inert atmosphere;
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

n-Octylamine
111-86-4

n-Octylamine

5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
773881-43-9

5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: n-Octylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 4h; Reflux;
57%
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: n-Octylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride In toluene for 12h; Reflux;
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: n-Octylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 12h; Reflux;
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: n-Octylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride for 12h; Reflux;
In neat (no solvent) at 200 - 280℃; for 0.166667h;
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

n-Dodecylamine
124-22-1

n-Dodecylamine

5-dodecyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
773881-44-0

5-dodecyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Conditions
ConditionsYield
Stage #1: thiophene-3,4-dicarboxylic acid With acetic anhydride at 140℃;
Stage #2: n-Dodecylamine In toluene for 24h; Reflux;
Stage #3: With thionyl chloride In toluene Reflux;
55%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

cadmium(II) acetate dihydrate
5743-04-4

cadmium(II) acetate dihydrate

trans-1,2-bis(4-pyridyl)ethylene
1135-32-6

trans-1,2-bis(4-pyridyl)ethylene

C6H2O4S(2-)*C12H10N2*Cd(2+)*3H2O

C6H2O4S(2-)*C12H10N2*Cd(2+)*3H2O

Conditions
ConditionsYield
In water at 140℃; for 120h; Sealed tube;53%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

1,3-di(4-pyridyl)propane
17252-51-6

1,3-di(4-pyridyl)propane

cadmium(II) acetate dihydrate
5743-04-4

cadmium(II) acetate dihydrate

2C6H2O4S(2-)*3C13H14N2*2Cd(2+)

2C6H2O4S(2-)*3C13H14N2*2Cd(2+)

Conditions
ConditionsYield
In water at 140℃; for 120h; Sealed tube;53%
picoline
108-89-4

picoline

thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

N3,N4-bis(pyridin-4-ylmethyl)thiophene-3,4-dicarboxamide

N3,N4-bis(pyridin-4-ylmethyl)thiophene-3,4-dicarboxamide

Conditions
ConditionsYield
Stage #1: picoline; thiophene-3,4-dicarboxylic acid With pyridine; ammonia at 20℃; under 750.075 Torr; for 0.5h;
Stage #2: With phosphoric acid triphenyl ester for 6h; Reflux;
46%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

lanthanum(III) nitrate hexahydrate

lanthanum(III) nitrate hexahydrate

water
7732-18-5

water

3C6H2O4S(2-)*2La(3+)*3H2O

3C6H2O4S(2-)*2La(3+)*3H2O

Conditions
ConditionsYield
With piperazine at 180℃; for 73h; Autoclave;43.2%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

3,5‐bis(1‐imidazolyl)pyridine
1374155-84-6

3,5‐bis(1‐imidazolyl)pyridine

cadmium(II) acetate dihydrate
5743-04-4

cadmium(II) acetate dihydrate

{[Cd(3,4-thiophenedicarboxylate)(3,5-bis(imidazol-1’-yl)pyridine)](H2O)}n
1603817-94-2

{[Cd(3,4-thiophenedicarboxylate)(3,5-bis(imidazol-1’-yl)pyridine)](H2O)}n

Conditions
ConditionsYield
In water at 140℃; for 120h; Autoclave;43%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

methyl iodide
74-88-4

methyl iodide

dimethyl thiophene-3,4-dicarboxylate
4282-35-3

dimethyl thiophene-3,4-dicarboxylate

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 18h;40%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

1,2-bis(4'-pyridyl)ethane
4916-57-8

1,2-bis(4'-pyridyl)ethane

cadmium(II) acetate dihydrate
5743-04-4

cadmium(II) acetate dihydrate

C6H2O4S(2-)*C12H12N2*Cd(2+)*3H2O

C6H2O4S(2-)*C12H12N2*Cd(2+)*3H2O

Conditions
ConditionsYield
In water at 140℃; for 120h; Autoclave;39%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

cerium(III) nitrate hexahydrate

cerium(III) nitrate hexahydrate

water
7732-18-5

water

3C6H2O4S(2-)*3H2O*2Ce(3+)

3C6H2O4S(2-)*3H2O*2Ce(3+)

Conditions
ConditionsYield
With piperazine at 180℃; for 73h; Autoclave;28.6%
thiophene-3,4-dicarboxylic acid
4282-29-5

thiophene-3,4-dicarboxylic acid

tert-butyl alcohol
75-65-0

tert-butyl alcohol

A

1-t-Butoxycarbonylthieno<3,4-d>imidazolone
108180-68-3

1-t-Butoxycarbonylthieno<3,4-d>imidazolone

B

5,10-Dihydroxydithieno<3,4-b:3',4'-f><1,5>diazocine
108180-69-4

5,10-Dihydroxydithieno<3,4-b:3',4'-f><1,5>diazocine

C

tert-butyl {4-[(tert-butoxycarbonyl)amino]thien-3-yl}carbamate
108180-66-1

tert-butyl {4-[(tert-butoxycarbonyl)amino]thien-3-yl}carbamate

Conditions
ConditionsYield
With diphenyl phosphoryl azide; triethylamine for 20h; Heating;A 17%
B 28%
C 5%
Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View