Issue 35, 2020

Iron-catalysed alkylation of 2-methyl and 4-methyl azaarenes with alcohols via C–H bond activation

Abstract

The first Fe-catalysed alkylation of 2-methyl and 4-methyl-azaarenes with a series of alkyl and hetero-aryl alcohols is reported (>39 examples and up to 95% yield). Multi-functionalisation of pyrazines and synthesis of anti-malarial drug (±) Angustureine significantly broaden the scope of this methodology. Preliminary mechanistic investigation, deuterium labeling and kinetic experiments including trapping of the enamine intermediate 1a′ are of special importance.

Graphical abstract: Iron-catalysed alkylation of 2-methyl and 4-methyl azaarenes with alcohols via C–H bond activation

Supplementary files

Article information

Article type
Communication
Submitted
29 Feb 2020
Accepted
10 Mar 2020
First published
10 Mar 2020

Chem. Commun., 2020,56, 4777-4780

Iron-catalysed alkylation of 2-methyl and 4-methyl azaarenes with alcohols via C–H bond activation

L. M. Kabadwal, S. Bera and D. Banerjee, Chem. Commun., 2020, 56, 4777 DOI: 10.1039/D0CC01593H

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