1148 MEYERS VOL. 25 respectively. More recently there have appeared several reports on new methods of obtaining these heterocyclics from the treatment of diacylated aminoalcohols with phosphorus pentasulfide4 and the reaction of nitriles with methallyl mercaptan in sulfuric acid. 6 The latter method is part of a new x:=-OH,-SH,: c 6 cGn-I, 2 I and general synthetic route to N-heterocycles of the type, I. Heterocyclic bases which have ...