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Synthesis of palladium complexes derived from amido linked N-heterocyclic carbenes and their use in Suzuki cross coupling reactions

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DOI

Author(s)

Rohit Singh Chauhan, Suryakant Nagar, Sucheta Chatterjee, Dibakar Goswami, David B. Cordes, Alexandra M. Z. Slawin, Trupti Tawde

School/Research organisations

Abstract

Treatment of 1-(n-butyl)-3-N-(2-Ar)acetamido-1, 3-imidazolium chloride (Ar=furylmethyl,phenylmethyl) with excess K2CO3 and [PdCl2(L−L)] (L−L=2 PPh3, dppf) afforded orange compounds of composition [(1-(n-butyl)-3-N-(2-Ar)acetamido-1,3-imidazol-2-ylidene)]2Pd (Ar=furylmethyl; phenylmethyl). These complexes were characterized by NMR (1H and 13C{1H} NMR), IR and micro-analysis data. Subsequently, the catalytic efficiency of these complexes for cross coupling reactions between 4-haloarenens (halo=Br, I) and phenylboronic acid was studied under different solvents (acetonitrile, THF and DMF), temperatures with different catalyst loadings. The molecular structure of [(1-(n-butyl)-3-N-(2-furylmethyl)acetamido-1, 3-imidazol-2-ylidene)]2Pd was established by single crystal X-ray diffraction analysis.
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Original languageEnglish
Number of pages9
JournalZeitschrift für Anorganische und Allgemeine Chemie
VolumeEarly View
Early online date7 Jun 2021
DOIs
Publication statusE-pub ahead of print - 7 Jun 2021

    Research areas

  • N-heterocyclic carbene, [PdCl2(P−P)], NMR, Suzuki Cross coupling

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