Synthesis of Stereodefined Substituted Cycloalkenes by a One-Pot Catalytic Boronation-Allylation-Metathesis Sequence
作者:Nicklas Selander、Kálmán J. Szabó
DOI:10.1002/adsc.200800324
日期:2008.9.5
stereoselectivities. The presented procedure has a broad synthetic scope and high functional group tolerance, which allows the synthesis of bicyclic lactone and spirane skeletons and various substitution patterns including hydroxy, silyl, vinyl, allyl, and sulfonyl groups. The studied catalytic one-pot reactions involve up to three individual processes performed by up to four acid- and transition metal-catalyzed
通过将烯丙基醇和其他烯丙基前体与不饱和醛偶联来制备立体确定的环己烯和环戊烯衍生物。这些反应基于多催化一锅法,其中包括钯钳复合物催化的硼化,烯丙基化和闭环易位反应。该反应序列可以以操作简单的程序进行,从而以高的总收率以及优异的区域选择性和立体选择性提供环烯烃产物。所提出的方法具有广泛的合成范围和高官能团耐受性,其允许合成双环内酯和螺环骨架以及各种取代模式,包括羟基,甲硅烷基,乙烯基,烯丙基和磺酰基。