申请人:Yacovan Avihai
公开号:US10633352B2
公开(公告)日:2020-04-28
A process for preparing, 1,1,3-Trioxo-1,2-benzothiazole-6-carboxamide of formula (I) comprising: reacting 2-chloro-sulfonyl-terephthalic acid dialkyl ester of formula (II) with ammonia (N H3) or ammonium containing-salt; wherein R represents a branched or non-branched C1-C12 alkyl.
一种制备式(I)的 1,1,3-三氧代-1,2-苯并噻唑-6-甲酰胺的工艺,包括:将式(II)的 2-氯磺酰基对苯二甲酸二烷基酯与氨(N H3)或含铵盐反应;其中 R 代表支链或非支链 C1-C12 烷基。