Preparation of<i>N</i>-(Substituted formyl) dialkylamino(thioxo)methanesulfenamides
作者:Katsumi Yonemoto、Isao Shibuya、Masahiko Yasumoto、Yoichi Taguchi、Tohru Tsuchiya
DOI:10.1246/bcsj.64.3732
日期:1991.12
N-(Substituted formyl)dialkylamino(thioxo)methanesulfenamides (R2NCSSNHCOR′, 2), anti-foggants for silver halide photographic materials as well as potential precursors for 1,4,2-dithiazolium salts, were prepared in good yields in two “one-pot” procedures. Various amide-type compounds (R′CONH2, 1) were treated successively with NaH and I2 and then condensed with dialkyldithiocarbamates (Method A); or
N-(取代甲酰基)二烷基氨基(硫代)甲磺酰胺(R2NCSSNHCOR',2),卤化银照相材料的防雾剂以及 1,4,2-二噻唑鎓盐的潜在前体,在两个“一-pot”程序。各种酰胺类化合物(R'CONH2,1)依次用NaH和I2处理,然后与二烷基二硫代氨基甲酸酯缩合(方法A);或 1 在用 NaH 处理后与四烷基秋兰姆二硫化物反应(方法 B)。这些方法允许在 2 中的取代基 R' 有很大变化:R'=H、二烷基氨基、烷氧基、芳基、烷基和杂环取代基。