Issue 8, 2022

Visible-light-induced metal-free coupling of C(sp3)–H sources with heteroarenes

Abstract

Development of an efficient, mild, economically viable, and green method for the construction of a Csp2–Csp3 bond via coupling between a saturated hydrocarbon [(Csp3)–H] and a heteroarene is a powerful synthetic strategy as the corresponding products are useful in the chemical and pharmaceutical industries. Presently, a metal-free photoinduced methodology has earned significant interest in organic chemistry as it utilized an organic photosensitizer and light as a clean energy source. This critical review presents an overview of the recent findings and developments in visible-light-mediated metal-free cross-coupling between C(sp3)–H sources and heteroarenes. This article has been presented based on different C(sp3)–H sources used in the reaction and the mechanism of each reaction was discussed simultaneously to provide a comprehensive guide to the readers for developing a variety of efficient photocatalytic systems.

Graphical abstract: Visible-light-induced metal-free coupling of C(sp3)–H sources with heteroarenes

Article information

Article type
Critical Review
Submitted
24 nov 2021
Accepted
10 mar 2022
First published
11 mar 2022

Green Chem., 2022,24, 3056-3080

Visible-light-induced metal-free coupling of C(sp3)–H sources with heteroarenes

A. Ghosh, P. Pyne, S. Ghosh, D. Ghosh, S. Majumder and A. Hajra, Green Chem., 2022, 24, 3056 DOI: 10.1039/D1GC04384F

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