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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The catalytic performance of Cu2O-Fe3O4@TNT nanocatalyst derived from Fe(III) acetylacetonate, Cu(II) acetylacetonate and hydrogen titanate nanotubes (HTNT) has been investigated for the first time in the click reaction in water...