N-(Substitutedformyl)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
The Synthesis of 3-Aryl-5-dialkylamino-1,4,2-dithiazol-1-ium Salts
作者:Isao Shibuya、Katsumi Yonemoto
DOI:10.1246/bcsj.59.2017
日期:1986.6
N-(Dialkylthiocarbamoylthio)arenecarboxamides, prepared by acylation of the corresponding S-dialkylthiocarbamoyl-substituted sulfenamides, cyclized with dehydration in a strong acidic media to form a number of 3-aryl-5-dialkylamino-1,4,2-dithiazol-1-ium salts in good yields.