67106-15-4

Upstream product

• 798556-34-0 3-hydroxy-4-oxo-2,5-diphenyl-2,5-dihydrothiophene-1,1-dioxide 
• 463-71-8 thiophosgene 
• 54714-10-2 4-hydroxy-3-oxo-2,5-diphenyl-2,3-dihydrothiophene-1,1-dioxide 

Relevant academic research and scientific papers

New Condensation Reactions of 4-Hydroxy-3-oxo-2,5-diphenyl-2,3-dihydrothiophene 1,1-Dioxide

4-Hydroxy-3-oxo-2,5-diphenyl-2,3-dihydrothiophene 1,1-dioxide (1) reacts with primary amines according to their basicity to give the compounds 6a-h, and 7, resp.; with hydrazines the monohydrazones (8a-d) are obtained.Condensation with aliphatic diamines

Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide compounds and 3,4-dihydroxy-cyclopentadienone compounds

Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide and of the corresponding cyclopentadienone compound, and their manufacture. The compounds can be used as "solid forms" of phosgene, thiophosgene or oxalyl chloride, or as acyl transfer agents.