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Issue 45, 2020
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Cu(i) based catalysts derived from bidentate ligands and studies on the effect of substituents for N-arylation of benzimidazoles and indoles

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Abstract

A family of Cu(I) complexes [Cu(L1–4)(Cl)(PPh3)] (C1–C4) were synthesized from bidentate ligands L1–L4 (where L1 = (E)-2-(2-benzylidene-1-phenylhydrazinyl)pyridine, L2 = (E)-N,N-dimethyl-4-((2-phenyl-2-(pyridin-2-yl)hydrazono)methyl)aniline, L3 = (E)-2-(2-(4-chlorobenzylidene)-1-phenylhydrazinyl)pyridine and L4 = (E)-2-(2-(4-nitrobenzylidene)-1-phenylhydrazinyl)pyridine) and characterized. The structure of complex C1 was authenticated by single-crystal X-ray diffraction. These complexes were utilised as catalysts for N-arylation of benzimidazoles and indoles. The effect of the substituents in the ligand frame of metal complexes were examined and the probable reaction pathway was scrutinized.

Graphical abstract: Cu(i) based catalysts derived from bidentate ligands and studies on the effect of substituents for N-arylation of benzimidazoles and indoles

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Article information


Submitted
21 May 2020
Accepted
14 Sep 2020
First published
16 Sep 2020

New J. Chem., 2020,44, 19591-19597
Article type
Paper

Cu(I) based catalysts derived from bidentate ligands and studies on the effect of substituents for N-arylation of benzimidazoles and indoles

S. Kumari, A. Ratnam, K. Mawai, V. K. Chaudhary, A. Mohanty and K. Ghosh, New J. Chem., 2020, 44, 19591
DOI: 10.1039/D0NJ02568B

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