作者:Heinrich Wamhoff、Stefan Herrmann、Stephan Stölben、Martin Nieger
DOI:10.1016/s0040-4020(01)86261-x
日期:1993.1
Beta-(N-Triphenylphosphoranyliden)-enamino esters afford the synthetically useful heteroannulated 3,1-oxazin-4-ones with aroyl chlorides in different solvents. The reaction proceeds in one step and in high yields and appears to be independent of the reactivity of the heterocyclic substrate.