O,S-Dimethyl Carbonodithioate as a Phosgene Substitute for the Preparation of S-Methyl Alkylcarbamothioates and Dialkylcarbamothioates
作者:Rita Fochi、Iacopo Degani、Claudio Magistris
DOI:10.1055/s-0029-1218117
日期:2009.11
conditions for the synthesis of S-methyl dialkylcarbamothioates involved a one-step procedure in a solvent-free system in the presence of triethyl(methyl)ammonium methyl carbonate as a catalyst; yields of the pure products were 85-98%. A mechanism is proposed for the carbamothioate-formation reaction. O,S-dimethyl carbonodithioate - carbamothioates - carbonylation - isomerization - S,S-dimethyl carbonodithioate