I<sub>2</sub>‐Catalyzed/ Mediated C–S and C–I Bond Formation: Solvent‐ and Metal‐free approach for the Synthesis of <i>β</i>‐Keto Sulfones and Branched Sulfones
a solvent- and transition-metal-free, iodine-catalyzed formation of C−S (sulfone) bonds for the synthesis of β-keto sulfones using readily accessible methyl ketones and sulfonyl hydrazides. This study also features the α-functionalization of β-keto sulfones to synthesize β-ketothiosulfones and α-iodo-β-keto sulfones via iodine-catalyzed carbon-sulfide (C−S) bond formation under solvent-free conditions