Mild and selective ring-cleavage of cyclic carbamates to amino alcohols
作者:Tadao Ishizuka、Takehisa Kunieda
DOI:10.1016/s0040-4039(00)95574-6
日期:——
N-tert-Butoxycarbonylated 2-oxazolidinones and tetrahydro-2-oxazinones are smoothly cleaved to acyclic N-Boc-amino alcohols on treatment with catalytic amounts of cesium carbonate at room temperature. The versatility of the procedure is demonstrated in a facile cleavage of highly functionalized heterocycles without epimerization and β-elimination.