Highly Efficient Catalytic Formation of (<i>Z</i>)-1,4-But-2-ene Diols Using Water as a Nucleophile
作者:Wusheng Guo、Luis Martínez-Rodríguez、Eddy Martin、Eduardo C. Escudero-Adán、Arjan W. Kleij
DOI:10.1002/anie.201603638
日期:2016.9.5
The first general catalytic and highly stereoselective formation of (Z)‐1,4‐but‐2‐ene diols is described from readily available and modular vinyl‐substituted cyclic carbonate precursors using water as a nucleophilic reagent. These 1,4‐diol scaffolds can be generally prepared in high yields and with ample scope in reaction partners using a simple synthetic method that does not require the presence of
(Z)-1,4-丁-2-烯二醇的第一个一般催化和高度立体选择性的形成是使用水作为亲核试剂,从现成的和模块化的乙烯基取代的环状碳酸酯前体中描述的。这些1,4-二醇支架通常可使用简单的合成方法以高收率制备,并且在反应伙伴中有广阔的应用范围,与迄今报道的化学计量方法不同,该合成方法不需要任何添加剂或采取任何特殊的预防措施。对照实验支持了机械学观点,即脱羧后催化中间体内的高共轭作用对控制这些反应的立体选择性结果起着至关重要的作用。