Optimizing the Structure of 4-Dialkylamino-α,α-diarylprolinol Ethers as Catalysts for the Enantioselective Cyclopropanation of α,β-Unsaturated Aldehydes in Water
作者:Jose I. Martínez、Efraim Reyes、Uxue Uria、Luisa Carrillo、Jose L. Vicario
DOI:10.1002/cctc.201300097
日期:2013.8
water as the reaction solvent. Moreover, the reaction was studied by computational methods, which indicated that the overall transformation proceeded through a cascadeMichael/α‐alkylation sequence, in which the first iminium‐mediated Michaeladdition reaction was the rate‐determining step and also the step at which stereochemical information was transferred from the catalyst to the products.