89894-62-2Relevant articles and documents
Synthesis of n-methyl-3-carboxy-2-chloro-dibenzo[c,f][1,4,5]oxa-thiazepine s,s-dioxide and its derivatives
Bychenkov,Tarasov,Pisarev,Feldblum, V. Sh.,Moskvichev, Yu. A.
scheme or table, p. 1391 - 1395 (2010/05/18)
A new dibenzo-condensed oxathiazepinecarboxylic acid was obtained starting from the methyl ester of 2,4-dichloro-5-chlorosulfonylbenzoic acid. Derivatives were obtained from N-phenylamide and N-methylamide of 2,4-dichloro-5- chlorosulfonylbenzoic acid. Methods for the preparation of the starting aromatic sulfonyl chlorides were proposed.