One-pot assembly of 4-methylene-3-oxa-1-azabicyclo[3.1.0]hexanes from alkyl aryl(hetaryl) ketoximes, acetylene, and aliphatic ketones: a new three-component reaction
作者:Boris A. Trofimov、Elena Yu. Schmidt、Al’bina I. Mikhaleva、Igor A. Ushakov、Nadezhda I. Protsuk、Elena Yu. Senotrusova、Olga N. Kazheva、Grigorii G. Aleksandrov、Oleg A. Dyachenko
DOI:10.1016/j.tetlet.2009.02.085
日期:2009.7
A new three-component reaction between alkyl aryl(hetaryl)ketoximes, acetylene, and aliphaticketones in the superbasic systems KOH/DMSO and LiOH/CsF/DMSO (70–90 °C, initial acetylene pressure 13–15 atm, 5–60 min) affords novel 4-methylene-3-oxa-1-azabicyclo[3.1.0]hexanes in yields of up to 75%. Using KOH/DMSO, the side products of the reaction are O-vinylketoximes and 2-aryl(hetaryl)pyrroles, while