作者:Katsumi Yonemoto、Isao Shibuya、Tohru Tsuchiya、Masahiko Yasumoto、Yoichi Taguchi
DOI:10.1246/bcsj.63.2933
日期:1990.10
afford 3-substituted 5-aryl-1,4,2-dithiazolium salts. The behavior of 3,5-diphenyl-1,4,2-dithiazolium perchlorate toward nucleophiles such as active methylene and amino compounds was studied systematically. The reaction can be classified into two cases depending on fission modes of initial adducts, i.e., ring opening–ring closure reaction (Path B) and fragmentation of dithiazole ring (Path C), and in
S-硫代芳酰基次磺酰胺 (ArCSSNH2) 由 ArCSS-Na+ 与羟胺-O-磺酸反应形成,经芳酰化或酰化分别生成 N-芳酰基-或 N-酰基-S-硫代芳酰基次磺酰胺,然后脱水环化为得到3-取代的5-芳基-1,4,2-二噻唑鎓盐。系统地研究了 3,5-二苯基-1,4,2-二噻唑鎓高氯酸盐对亲核试剂如活性亚甲基和氨基化合物的行为。根据初始加合物的裂变方式,该反应可分为开环-闭环反应(路径B)和二噻唑环断裂(路径C)两种情况,在某些情况下,初始加合物是分离的。