Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide compounds and
申请人:BASF Aktiengesellschaft
公开号:US04122090A1
公开(公告)日:1978-10-24
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.