Journal
CHEMISTRYSELECT
Volume 3, Issue 25, Pages 7164-7169Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201801100
Keywords
1, 4 dioxane; Benzophenone; PdNPs/C-SiO2; Phenylboronate ester; Suzuki carbonylative Coupling
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Funding
- Department of Science and Technology, New Delhi
- Council of Scientific and Industrial Research, New Delhi
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With the aim of investigating the role of solvent in directing the product selectivity in carbonylative Suzuki-Miyaura cross-coupling (CSMC), Rice-Husk (RH) derived carbon-silica supported palladium nanoparticle (PdNPs/C-SiO2) catalysts were prepared and characterized by various techniques. The structural and textural properties of these catalysts have been determined by XRD, BET, SEM, TEM, FT-IR and XPS. In CSMC over Pd NPs/C-SiO2 catalysts solvents are playing a critical role in directing the product selectivity particularly with 1, 4-dioxane solvent biaryl ketone alone formed from iodobenzene, carbon monoxide and phenylboronic acid, addressing the in-situ formation of phenylboronate ester from 1, 4-dioxane solvent and phenyl boronic acid and subsequent biaryl ketone formation with 100% selectivity and appealing catalytic activity (Extreamly high TON = 3,61,650).
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