Intramolecular Diels-Alder reactions of pyrimidines: Synthesis of tricyclic annelated pyridines.
作者:W.A.W. Stolle、A.T.M. Marcelis、A. Koetsier、H.C. van der Plas
DOI:10.1016/s0040-4020(01)89527-2
日期:1989.1
l-X)-pyrimidines (2, X= O, S, NAc, CH2, CO) easily undergo intramolecular Diels-Alder reaction with inverse electron demand, to give tricyclic annelated pyridines in excellent yields. The synthesis of 2 and the cycloaddition reaction to give the tricyclic annelated pyridines is described.
2-(2-三甲基甲硅烷基乙炔基苯基-X)-嘧啶(2,X = O,S,NAc,CH 2,C = O )容易发生分子内Diels-Alder反应,具有反电子需求,从而以优异的收率得到三环退火的吡啶。描述了2的合成和环加成反应以得到三环退火的吡啶。