Photoredox C(sp3)−C(sp2) Cross-Dehydrogenative Coupling of Xanthene with β-keto Moiety using MoS2 Quantum Dot (QD) Catalyst

Deore, JP and De, M (2022) Photoredox C(sp3)−C(sp2) Cross-Dehydrogenative Coupling of Xanthene with β-keto Moiety using MoS2 Quantum Dot (QD) Catalyst. In: Advanced Synthesis and Catalysis .

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Abstract

Visible light-mediated Cross-Dehydrogenative Coupling of Xanthene with β-keto moieties has been developed using MoS2 Quantum Dot (QD) as a photoredox catalyst. Interesting features of this strategy includes circumventing the requisite of pre-functionalized starting material, broad substrate scope, mild reaction condition, water as a solvent system, and recyclability of catalyst up to six cycles without loss of yield and selectivity. We have also enlightened the Kinetic Solvent Isotope Effect (KSIE) by scrutinizing the aspect of triplet-to-triplet photo energy transfer. The reductive quenching mechanism of QD photocatalyst has been endorsed by cyclic voltametric study.

Item Type:	Journal Article
Publication:	Advanced Synthesis and Catalysis
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords:	Cross-dehydrogenative coupling reaction; Heterogeneous catalysis; Kinetic solvent isotope effect; Photoredox catalysis; Quantum dot
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	03 Sep 2022 05:39
Last Modified:	03 Sep 2022 05:39
URI:	https://eprints.iisc.ac.in/id/eprint/76411

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