Synthesis and reactions of S,S-dialkyl trimethylsilyl dithiophosphites
摘要:
S,S-Dialkyl-O-trimethylsilyl dithiophosphites (III)-(VI) have been obtained by reacting dialkyl dithiochlorophosphites with bis(trimethylsilyl)acetamide. Compounds (III)-(VI) react with aldehydes in the presence of catalytic amounts of tertiary amines to give S,S-dialkyl-1-trimethylsilyloxyalkyl-dithiophosphonates (VII)-(IX) and (XII). Hydrolysis of (III) and (V) affords dialkyl dithiophosphites (XVI) and (XVII), which readily add to azomethines and chloral.