Copper-Catalyzed Enantioselective Hydroalkoxylation of Alkenols for the Synthesis of Cyclic Ethers
作者:Dake Chen、Ilyas A. Berhane、Sherry R. Chemler
DOI:10.1021/acs.orglett.0c01691
日期:2020.10.2
The copper-catalyzed enantioselective intramolecular hydroalkoxylation of unactivated alkenes for the synthesis of tetrahydrofurans, phthalans, isochromans, and morpholines from 4- and 5-alkenols is reported. The substrate scope is complementary to existing enantioselective alkene hydroalkoxylations and is broad with respect to substrate backbone and alkene substitution. The asymmetric induction and
报道了铜催化的未活化烯烃的对映选择性分子内加氢烷氧基化,用于从 4-和 5-烯醇合成四氢呋喃、邻苯二甲醚、异色满和吗啉。底物范围是对现有的对映选择性烯烃加氢烷氧基化的补充,并且在底物主链和烯烃取代方面是广泛的。不对称诱导和同位素标记研究支持极性/自由基机制,包括对映选择性氧化,然后是 C-[Cu] 均裂和氢原子转移。完成了抗真菌杀虫剂呋喃烟的合成。