59337-85-8

Upstream product

• 67525-77-3 dimethyl 4,4’-dithiobis(thiophene-3-carboxylate) 

Downstream Products

• 59337-78-9 4-(aminosulfonyl)-3-thiophenecarboxylic acid methyl ester 
• 140947-41-7 methyl 4-(N-phenyl-N-methyl)sulfamoylthiophene-3-carboxylate 
• 214915-93-2 4-[(Pyridin-2-ylmethyl)-sulfamoyl]-thiophene-3-carboxylic acid methyl ester 
• 214915-95-4 4-[(Pyridin-3-ylmethyl)-sulfamoyl]-thiophene-3-carboxylic acid methyl ester 
• 214915-91-0 4-Phenethylsulfamoyl-thiophene-3-carboxylic acid methyl ester 
• 260356-41-0 methyl 4-[N-(2,4-dimethoxybenzyl)sulfamoyl]thiophene-3-carboxylate 
• 260356-36-3 methyl 4-[N-(4-chlorophenyl)sulfamoyl]thiophene-3-carboxylate 
• 260356-39-6 methyl 4-[N-(4-methoxyphenyl)sulfamoyl]thiophene-3-carboxylate 
• 260356-33-0 methyl 4-(N-phenylsulfamoyl)thiophene-3-carboxylate 
• 260356-35-2 methyl 4-[N-(3-chlorophenyl)sulfamoyl]thiophene-3-carboxylate 
• 145865-83-4 C₁₃H₁₂N₂O₄S₂ 
• 145865-84-5 C₁₃H₁₁ClN₂O₄S₂ 
• 145865-85-6 C₁₄H₁₁N₃O₄S₂ 
• 145865-82-3 C₁₄H₁₄N₂O₅S₂ 

Relevant academic research and scientific papers

SEMICONDUCTING POLYMERS AND TERNARY BLENDS THEREOF

Semiconducting photovoltaic polymers and compositions are disclosed. The polymers and compositions exhibit increased power conversion efficiency in solar cells and other applications.

Aromatization of Dihydrothiophenes. Thiophenesaccharin: A Sweet Surprise

Sulfuryl chloride has been shown to be highly effective in the dehydrogenation of 3,4-disubstituted-2,5-dihydrothiophenes and 2,3-disubstituted-4,5-dihydrothiophenes, in which the 3,4 and 2,3 substitutents are part of a β-keto carbonyl functionality or it

Manufacture of 3-halosulfonylthiophene-carboxylic acid compounds

3-Halosulfonylthiophene-carboxylic acid compounds are manufactured by reacting 3-ketothiophane-carboxylic acid compounds with sulfonic acid compounds, reacting the end product from the 1st reaction stage with alkali metal polysulfides, reacting the end product from the 2nd stage with a dehydrogenating agent and finally reacting the end product from the 3rd stage with halogen and water. The products are starting compounds for the manufacture of drugs, dyes and crop protection agents and have an anti-inflammatory, analgesic and anti-rheumatic action. In particular, the end products I are starting materials for the manufacture of sweeteners which are non-toxic and free from an after-taste, flavor-improving agents, diabetic aids and feedstuffs, and provide the means of a simple and economical synthesis of thiophene-saccharins.

Thienothiazines

The present invention relates to compounds of the formula STR1 wherein A together with the two carbon atoms to which it is attached forms the group STR2 AND THE BROKEN LINE REPRESENTS THE DOUBLE BOND IN GROUP (A); R1 represents a lower alkyl group; R2 represents the residue of an aromatic heterocyclic ring containing from 1 to 4 hetero atoms, which may be substituted by one or two lower alkyl groups, or a phenyl group which may be substituted by halogen, hydroxy, lower alkyl, trifluoromethyl or lower alkoxy and R3 and R4 each represent a hydrogen atom or a lower alkyl group. Also provided are methods for their preparation. The thienothiazine derivatives provided by this invention have anti-flammatory, analgesic and antirheumatic activity.

Thiophene saccharines

Thiophene analogs of saccharine, i.e., the new compounds 2,3-dihydro-3-oxothieno-[3,4-d]-, -[2,3-d]- and -[3,2-d]-isothiazole-1,1-dioxide, and processes for their manufacture. The new compounds are excellent sweeteners and have no unpleasant taste.