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Elsevier, Journal of Organometallic Chemistry, (771), p. 124-130, 2014

DOI: 10.1016/j.jorganchem.2013.12.051

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Amide synthesis from alcohols and amines catalyzed by a RuII–N-heterocyclic carbene (NHC)–carbonyl complex

Journal article published in 2014 by Biswajit Saha, Gargi Sengupta, Abir Sarbajna, Indranil Dutta ORCID, Jitendra K. Bera
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Treatment of [Ru 2 (CO) 4 (CH 3 CN) 6 ](BF 4 ) 2 with 3-methyl-1-(pyridin-2-yl)-imidazolium bromide in the presence of tetrabutylammonium bromide at room temperature in dichloromethane affords a Ru II –N-heterocyclic carbene–carbonyl complex [Ru(py-NHC)(CO) 2 Br 2 ] (1). Catalyst 1 displays diverse substrate scope for phosphine-free acceptorless coupling between alcohols and amines to amides at low catalyst loading. A Ru II -dihydride/Ru 0 sequence is proposed in the catalytic cycle.