Asymmetric synthesis of enantioenriched α-allyl esters through Pd(BINAPHANE)-catalysed allylation of disubstituted ketenes
作者:Ahmad A. Ibrahim、Stephen C. J. O’Reilly、Margot Bottarel、Nessan J. Kerrigan
DOI:10.1039/d4cc00057a
日期:2024.3.19
Pd2dba3·CHCl3 (2.5 mol%)-BINAPHANE (5 mol%) was used to promote the first catalytic enantioselective allylation of disubstituted ketenes to give α-allyl esters. The ester products were formed in good to excellent yields (61–93% yield for 13 examples, 16 examples in all), with moderate to good enantioselectivity (68–80% ee for 7 examples).
Pd 2 dba 3 ·CHCl 3 (2.5 mol%)-BINAPHANE (5 mol%)用于促进双取代烯酮的首次催化对映选择性烯丙基化反应生成α-烯丙酯。酯产物的产率从良好到优异(13 个实例的产率为 61-93%,总共 16 个实例),具有中等至良好的对映选择性(7 个实例为 68-80% ee)。