Issue 8, 2016

A mesoionic bis(Py-tzNHC) palladium(ii) complex catalyses “green” Sonogashira reaction through an unprecedented mechanism

Abstract

A novel bis(pyridyl-functionalized 1,2,3-triazol-5-ylidene)-palladium(II) complex [Pd(Py-tzNHC)2]2+ catalyses the copper-, amine-, phosphine-, and additive-free aerobic Sonogashira alkynylation of (hetero)aryl bromides in water as the only reaction solvent. The catalysis proceeds along two connected Pd-cycles with homogeneous bis-carbene Pd0 and PdII species, as demonstrated by electrospray ionization mass spectrometry.

Graphical abstract: A mesoionic bis(Py-tzNHC) palladium(ii) complex catalyses “green” Sonogashira reaction through an unprecedented mechanism

Supplementary files

Article information

Article type
Communication
Submitted
20 Oct 2015
Accepted
04 Nov 2015
First published
06 Nov 2015
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2016,52, 1571-1574

Author version available

A mesoionic bis(Py-tzNHC) palladium(II) complex catalyses “green” Sonogashira reaction through an unprecedented mechanism

M. Gazvoda, M. Virant, A. Pevec, D. Urankar, A. Bolje, M. Kočevar and J. Košmrlj, Chem. Commun., 2016, 52, 1571 DOI: 10.1039/C5CC08717A

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