作者:Xiaowei Dou、Na Liu、Jian Yao、Tao Lu
DOI:10.1021/acs.orglett.7b03663
日期:2018.1.5
An unprecedented rhodium-catalyzed homocoupling reaction of γ-alkylated tert-propargylic alcohols is reported, and 2-alkynylated buta-1,3-diene or 2-alkynylated hexa-1,3,5-triene are generated selectively. Multiple β-eliminations, including sequential β-carbon, β-hydrogen, and β-oxygen eliminations from the corresponding rhodium intermediates, are assumed to be involved during the reaction process
据报道,前所未有的铑催化的γ-烷基化叔炔丙醇的均偶联反应,选择性地生成了2-炔基化的buta-1,3-二烯或2-炔基化的hexa-1,3,5-三烯。假定在反应过程中涉及多个β-消除,包括从相应的铑中间体中依次去除β-碳,β-氢和β-氧。