Catalytic Chalcogenylation
under Greener Conditions:
A Solvent-Free Sulfur- and Seleno-functionalization of Olefins via
I<sub>2</sub>/DMSO Oxidant System
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Abstract
Herein, we report a solvent- and
metal-free methodology for the
alkoxy-chalcogenylation of styrenes, using molecular iodine as a catalyst,
DMSO as a stoichiometric oxidant, and different nucleophiles under
microwave irradiation. This eco-friendly approach afforded the desired
products in good to excellent yields in only 10 min. In addition,
using the same protocol, we carried out the cyclization reaction of
relevant molecules, such as lapachol derivatives
