Synthesis of Substituted Pyrido[3,2-<i>b</i>]indoles (δ-Carbolines)
作者:Jean-Yves Mérour、Anne Mérour
DOI:10.1055/s-1994-25566
日期:——
Inverse electron-demand Diels-Alder reaction of ethyl vinyl ether with α,β-ethylenic ketone 1 gave the ethoxypyran 2 which yielded δ-carbolines 3 on exposure to hydroxylamine.