Chemoselective reduction of carbamates by LiAlH_4

摘要

LAH reductions of 5-methoxycarbonylamino-5-methyl or 5-H-2-substituted-2,4-dihydro-3H-1,2,4-triazole-3-ones lead to chemoselective reduction of carbamates to furnish the corresponding N-methyl derivatives.