Highly Regio- and Enantioselective Copper-Catalyzed Reductive Hydroxymethylation of Styrenes and 1,3-Dienes with CO<sub>2</sub>
作者:Yong-Yuan Gui、Naifu Hu、Xiao-Wang Chen、Li−Li Liao、Tao Ju、Jian-Heng Ye、Zhen Zhang、Jing Li、Da-Gang Yu
DOI:10.1021/jacs.7b10149
日期:2017.11.29
yields and excellent regio-, enantio-, and Z/E-selectivities. The utility of this transformation was demonstrated by a broad range of styrenes and 1,3-dienes, facile product modification, and synthesis of bioactive compounds (R)-(-)-curcumene and (S)-(+)-ibuprofen. Mechanistic studies demonstrated the carboxylation of phenylethylcopper complexes with CO2 as one key step.
在此,我们报告了具有 1 个大气压的 CO2 的苯乙烯和 1,3-二烯的高度区域选择性和对映选择性铜催化还原羟甲基化。各种重要的手性高苄醇很容易从苯乙烯制备。此外,各种 1,3-二烯也以高产率和优异的区域选择性、对映选择性和 Z/E 选择性转化为手性高烯丙醇。广泛的苯乙烯和 1,3-二烯、简便的产品改性以及生物活性化合物 (R)-(-)-姜黄烯和 (S)-(+)-布洛芬的合成证明了这种转化的效用。机理研究表明,苯乙基铜配合物与 CO2 的羧化是一个关键步骤。