4.6 Article

Chemoselective calcium-catalysed direct amidation of carboxylic esters

Journal

RSC ADVANCES
Volume 5, Issue 95, Pages 77658-77661

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra18288c

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Unactivated carboxylic esters and primary amines undergo calcium-catalysed direct amide bond formation in excellent yields under homogeneous conditions in toluene. This green and mild reaction proceeds chemoselectively with esters, whereas related carboxylic acids and amides remain unreactive.

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