Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide...

C - Chemistry – Metallurgy – 07 – D

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260/328.3, 260/3

C07D 317/44 (2006.01) C07C 273/18 (2006.01) C07D 295/215 (2006.01) C07D 333/48 (2006.01) C07D 495/04 (2006.01) C07J 33/00 (2006.01) C07J 41/00 (2006.01) C07K 5/06 (2006.01) C07K 5/065 (2006.01) C07K 5/078 (2006.01) C07K 5/097 (2006.01) C07K 5/117 (2006.01)

Patent

CA 1106388

ABSTRACT OF THE DISCLOSURE: Cyclic esters of 3,4-dihydroxy-thio- phene-1,1-dioxide and of the corresponding cyclopentadienone com- pound, and their manufacture. The compounds can be used as "solid forms" of phosgene, thiophoagene or oxalyl chloride, or as acyl transfer agents.

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