Wittig reaction of new phosphonium salts, (triphenylphosphonio)methyl arenecarbodithioate iodides, with variety of aldehydes gave the corresponding vinyl arenecarbodithioates in moderate to good yields. Reaction of the vinyl dithiocarboxylate with nucleophiles such as potassium alkoxide or alkanethiolate was investigated and found to give the thioacylated products in high yields. Ab initio molecular
The use of sulfines in nucleophilic acylation reactions
作者:G.E. Veenstra、B. Zwanenburg
DOI:10.1016/0040-4020(78)80187-2
日期:1978.1
dithioketal monoxide which upon acidolysis under anhydrous conditions are converted into vinylsulfides. The mechanism of the formation of the vinylsulfides is discussed. The acylanion equivalents are acylated with benzoylchloride, CO2 and benzaldehyde. The use of Cu1 and 18-crown-6 as a catalyst appears to be crucial in some reactions. Michael additions of the dithioacetal monoxides to acrylonitrile