A number of alkyl, aryl and bifunctional isothiocyanates are obtained in moderate to high yields (41–94%) in a two-step, one-pot reaction of the parent primary amines or their salts with carbon disulfide, followed by reaction of the thus formed dithiocarbamates with T3P® (propane phosphonic acid anhydride) as a new and efficient desulfurating agent.
Key words
isothiocyanates - desulfuration - propane phosphonic acid anhydride (T3P
®) - dithiocarbamates - amino acids - amines