Tandem N-Alkylation−C-Allylation Reaction of α-Imino Esters with Organoaluminums and Allyltributyltin
摘要:
On treatment of various alpha-imino esters with organoaluminum reagents and allyltributyltin in the presence of benzoyl peroxide, the tandem reaction proceeded to give the N-alkylation-C-allylation products in good yields. The tandem N-alkyation-C-cyanation also proceeded using silyl or aluminum cyanide to give the aminonitrile in good yield.
Conjugated imines and iminium salts as versatile acceptors of nucleophiles
作者:Makoto Shimizu、Iwao Hachiya、Isao Mizota
DOI:10.1039/b814930e
日期:——
development of synthetic methodologies where nucleophilicaddition reactions to imino carbons are utilized in crucial steps. This article summarizes double nucleophilicaddition reactions with alpha,beta-unsaturated aldimines, addition reactions using alkynyl imines, "umpoled" reactions of alpha-imino esters, and the use of iminium salts as reactive electrophiles.
Copper-Catalyzed Borylative Multicomponent Synthesis of Quaternary α-Amino Esters
作者:Kay Yeung、Fabien J. T. Talbot、Gareth P. Howell、Alexander P. Pulis、David J. Procter
DOI:10.1021/acscatal.8b04563
日期:2019.3.1
Copper-catalyzed coupling of readily available ketiminoesters, allenes, and a diboron affords densely functionalized quaternary α-amino esters bearing adjacent stereocenters and versatile vinyl boronate motifs. The method utilizes a commerciallyavailable copper(I) catalyst, operates at ambient temperature, and features a catalytic allyl cupration of ketiminoesters.