The Isomerization of Allylrhodium Intermediates in the Rhodium-Catalyzed Nucleophilic Allylation of Cyclic Imines
作者:Hamish B. Hepburn、Hon Wai Lam
DOI:10.1002/anie.201407233
日期:2014.10.20
Allylrhodium species generated from potassium allyltrifluoroborates can undergo isomerization by 1,4‐rhodium(I) migration to give more complex isomers, which then react with cyclic imines to provide products with up to three new stereochemical elements. High enantioselectivities are obtained using chiral diene–rhodium complexes.
由烯丙基三氟硼酸钾产生的烯丙基铑物质可以通过 1,4-铑 (I) 迁移进行异构化,产生更复杂的异构体,然后与环状亚胺反应,提供最多具有三种新立体化学元素的产品。使用手性二烯-铑络合物可以获得高对映选择性。