名称:
                                A new, general approach for the synthesis of heteroannulated 3,1-oxazin-4-ones
                             
                            
                                摘要:
                                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.
                             
                                                            
                                    DOI:
                                    10.1016/s0040-4020(01)86261-x