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Issue 8, 2016
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A mesoionic bis(Py-tzNHC) palladium(ii) complex catalyses “green” Sonogashira reaction through an unprecedented mechanism

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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

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Supplementary files

Article information


Submitted
20 Oct 2015
Accepted
04 Nov 2015
First published
06 Nov 2015

This article is Open Access

Chem. Commun., 2016,52, 1571-1574
Article type
Communication
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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