作者:James A. MacKay、Zachary C. Landis、Stephen E. Motika、Margaret H. Kench
DOI:10.1021/jo3015769
日期:2012.9.7
intramolecular Rauhut–Currier reaction utilizing alkynoates as the initial conjugate acceptor affords densely functionalized 5- and 6-membered rings from ynoate-enoate, ynoate-enenitrile, and alkynyl sulfone-enenitrile substrates. Trialkylphosphines catalyze the reaction, and TMSCN serves as a pronucelophile to effect turnover of the catalyst and the formation of a second C–C bond. Because of the highly electrophilic
利用炔酸酯作为初始共轭受体的分子内Rauhut-Currier反应提供了由炔酸酯-烯酸酯,炔酸酯-乙腈和炔基砜-乙腈底物稠密官能化的5和6元环。三烷基膦催化该反应,而TMSCN可作为亲核亲核试剂,以影响催化剂的周转率和第二个C–C键的形成。由于高度亲电的炔烃受体,该反应产生的产物无法从传统的Rauhut-Currier反应中轻易获得。