Synthesis 2019; 51(08): 1779-1790
DOI: 10.1055/s-0037-1611435
paper
© Georg Thieme Verlag Stuttgart · New York

The Reaction of N-Trimethylsilyl-Substituted Heteroarylamines with Esters and Thioesters: An Efficient Protocol To Access Diheteroarylamides

Ana Koperniku
,
Maryam Zamiri
,
David S. Grierson*
Faculty of Pharmaceutical Sciences, 2405 Westbrook Mall, The University of British Columbia, Vancouver, V6T 1Z3, Canada   Email: dgrierso@mail.ubc.ca
› Author Affiliations
Further Information

Publication History

Received: 24 September 2018

Accepted after revision: 07 November 2018

Publication Date:
18 February 2019 (online)


Abstract

The S-benzyl thioester and methyl ester derivatives of a representative 4-pyridinone-based carboxylic acid were sufficiently activated to react efficiently in amide coupling reactions with the amide anion generated in situ from the N-trimethylsilyl derivative of different weakly nucleophilic heteroarylamines. In acetonitrile as solvent, the precipitated diheteroarylamide products were isolated in pure form by vacuum filtration. This simple amide bond forming protocol can be readily adapted to the parallel synthesis of compound libraries.

Supporting Information