作者:Benjamin List、Ilija Čorić、Oleksandr O. Grygorenko、Philip S. J. Kaib、Igor Komarov、Anna Lee、Markus Leutzsch、Subhas Chandra Pan、Andrey V. Tymtsunik、Manuel van Gemmeren
DOI:10.1002/anie.201306037
日期:2014.1.3
AbstractThe first aminocatalyzed α‐alkylation of α‐branched aldehydes with benzyl bromides as alkylating agents has been developed. Using a sterically demanding proline derived catalyst, racemic α‐branched aldehydes are reacted with alkylating agents in a DYKAT process to give the corresponding α‐alkylated aldehydes with quaternary stereogenic centers in good yields and high enantioselectivities.