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.
- This article is part of the themed collections: Green Chemistry Reviews and Green Chemistry Reviews