A General Approach to Quaternary Center Construction from Couplings of Unactivated Alkenes and Acyl Xanthates
作者:Ernest N. Jenkins、William L. Czaplyski、Erik J. Alexanian
DOI:10.1021/acs.orglett.7b00882
日期:2017.5.5
to quaternary center construction using unactivated alkenes as coupling partners is reported. In this strategy, acyl xanthates, readily accessed from carboxylic acids, serve as precursors to tertiary radicals. This strategy leverages the unique reactivity of xanthates to participate in efficient radical-mediated additions to unactivated alkenes, expanding the scope of quaternary center construction
据报道,使用未活化的烯烃作为偶合伙伴的,由自由基介导的四元中心构建的一般方法。在这种策略中,容易从羧酸中获得的酰基黄药作为叔自由基的前体。该策略利用了黄药的独特反应性,以有效地将自由基介导的加成物加到未活化的烯烃中,从而扩大了季铵盐中心的建设范围。