12 of 13
MUNIYAPPAN AND SABIAH
Organometallics 2019, 38, 1699. eP. Conelly-Espinosaa, R.
A. Toscanoa, D. Morales-Moraless, Tetrahedron Lett. 2014, 55,
5841.
4 | CONCLUSIONS
We have successfully synthesized four NHC ligands
(L1H2Br2, L2H2Br2, L3H2Br2, and L4H2Br2) with picolyl-
and benzyl-linked biphenyl backbone and their
corresponding palladium(II) complexes. All the NHC
ligands and complexes were characterized by elemental
analysis, NMR, and ESI-MS. Single-crystal XRD of Pd–
NHC complexes 1–4 showed their monomeric nature
with palladium in distorted square-planar geometry. All
Pd–NHC complexes were examined as catalysts in
acylative Suzuki cross-coupling reaction of benzoyl chlo-
ride and phenyl boronic acid. Complex 1 was found to be
an efficient catalyst compared with the other Pd–NHC
complexes.
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ACKNOWLEDGEMENTS
N.M. acknowledges UGC, India, for SRF fellowship.
ORCID
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