A new method has been developed for converting nitriles into
primary thioamides. Treatment of various nitriles (Table
[1]
, entries 1-12)
with gaseous hydrogen sulfide in a mixture of methanol-water
or ethanol-water and in the presence of anion-exchange
resin (Dowex 1X8, SH- form) at room temperature
and ambient pressure gave the corresponding thioamides in 25-96% yield.
thioamides - addition reactions - nitriles - nucleosides - ion exchange resins