A Novel Synthesis of Vinyl DithiocarbamatesviaPhosphonium Ylides
摘要:
In the presence of potassium carbonate, N,N-dimethylamino thiocarbonyl thiomethyl triphenylphosphonium bromide can form the corresponding ylide in situ, which can undergo Wittig reaction with aldehydes to give vinyl dithiocarbamates in high yields. If the esters were hydrolysized in the presence of mercuric chloride, a new method to lengthen aldehydes by one carbon atom was accomplished.