On April 2, 2021, Lu, Dengfu; Cui, Jiajia; Yang, Sen; Gong, Yuefa published an article.Category: pyridine-derivatives The title of the article was Iron-catalyzed cyanoalkylation of glycine derivatives promoted by pyridine-oxazoline ligands. And the article contained the following:
An iron-catalyzed C(sp3)-H cyanoalkylation of glycine derivatives with cyclobutanone oxime esters was established for the incorporation of a cyano group into amino acids and peptides. In this reaction, Fe(NTf2)2 and pyridine-oxazoline ligands form highly active catalysts that could simultaneously and selectively activate both substrates. Preliminary mechanistic studies revealed the excellent chemo-selectivity may stem from an in situ formed imine intermediate and a consecutive radical addition The evidence suggested the interaction between glycinate substrate and the Fe-catalyst has a prominent impact on the catalytic activity, and the catalyst may also activate the imine intermediate as a Lewis acid. The experimental process involved the reaction of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine(cas: 109660-12-0).Category: pyridine-derivatives
The Article related to nitrile amino acid diastereoselective synthesis cyclic voltammetry, glycine cyanoalkylation cyclobutanone oxime ester pyridine oxazoline iron catalyst, cyanoalkylation reaction mechanism imine intermediate radical addition lewis acid, aniline substitution bromide oxime acylation cyanoalkylation mechanism lewis acid and other aspects.Category: pyridine-derivatives