Enantioselective three-component aminomethylation of α-diazo ketones with alcohols and 1,3,5-triazines.

ABSTRACT: Enantioselective α-aminomethylation of carbonyl compounds constitutes a powerful protocol for introducing aminomethyl groups to simple organic molecules. However, current strategies rely on nucleophile-based enantioselective activation with inherently activated substrates only, and enantioselective protocol based on the activation of in situ-generated unstable formaldimines remains elusive, probably owing to their unstable nature and the lack of steric environment for efficient stereocontrols. Here, based on a rhodium/chiral phosphoric acid cooperative catalysis, we achieved an enantioselective three-component reaction of α-diazo ketones with alcohols and 1,3,5-triazines. A dual hydrogen bonding between the chiral phosphoric acid catalyst and two distinct active intermediates was proposed

SUBMITTER: Che J 

PROVIDER: S-EPMC7089982 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature