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Catalyst-free photoinduced selective oxidative C(sp3)–C(sp3) bond cleavage in arylamines

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Abstract

Due to the directional nature of sp3-hybridized orbitals and the absence of π-orbitals, the oxidative cleavage of the kinetically and thermodynamically stable C(sp3)–C(sp3) bond is extremely difficult and remains scarcely explored. In this work, under the double argument of quantum mechanics (QM) computations and meticulous experiments on our well-designed C–C single bond cleavage mechanism, we discovered a means of photoinduced selective oxidative C(sp3)–C(sp3) bond cleavage in arylamines, easily achieved by simple visible light irradiation using O2 as a benign oxidant under very mild conditions. The utility of our methodology was demonstrated by the C(sp3)–C(sp3) bond cleavage in morpholine/piperazine arylamines with excellent functional group tolerance. Importantly, our methodology is noteworthy, not only in that it does not require any catalysts, but also in that it provides valuable possibilities for the scalable functionalization of clinical drugs and natural products.

Graphical abstract: Catalyst-free photoinduced selective oxidative C(sp3)–C(sp3) bond cleavage in arylamines

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Article information


Submitted
26 Feb 2021
Accepted
09 Apr 2021
First published
09 Apr 2021

Green Chem., 2021, Advance Article
Article type
Communication

Catalyst-free photoinduced selective oxidative C(sp3)–C(sp3) bond cleavage in arylamines

J. Zhou, S. Wang, W. Duan, Q. Lian and W. Wei, Green Chem., 2021, Advance Article , DOI: 10.1039/D1GC00743B

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