2022•SynthesisRequires access

Visible-Light-Induced Catalysis: A Regioselectivity Switch between [2+1] and [2+2] Cycloaddition of Diazocarbonyls with Olefins

Jian Lv, Huixin Qiu, Li‐Rong Wen

Abstract

Abstract Visible-light-promoted [2+1] and [2+2] cycloaddition reactions of diazocarbonyls with olefins have been developed, affording functionalized cyclopropanes and cyclobutanes, respectively. In visible-light catalysis of Ir(ppy)3, a simple addition of Rh2(OAc)4 switches the regioselectivity from [2+1] to [2+2] cycloaddition with good reactivity and high regioselectivity.

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Available abstract

Key concepts: Regioselectivity, Cycloaddition, Chemistry, Cyclobutanes, Catalysis, Visible spectrum, Reactivity (psychology), Photochemistry