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Metal‐Free Photocatalysts for C−H Bond Oxygenation Reactions with Oxygen as the Oxidant
Author(s) -
Zhang Yu,
Schilling Waldemar,
Das Shoubhik
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201900414
Subject(s) - oxygen , oxygenation , photochemistry , metal , chemistry , oxygen evolution , inorganic chemistry , materials science , electrochemistry , organic chemistry , electrode , ecology , biology
Direct and selective oxygenation of C−H bonds to C−O bonds is regarded as an effective tool to generate high‐value products. However, these reactions are still subject to challenges such as harsh reaction conditions, use of expensive transition metal catalysts, and involvement of stoichiometric oxidants. To avoid these, molecular oxygen would be ideal as oxidant, as the byproduct is water or hydrogen peroxide. Additionally, achieving these reactions by using metal‐free catalysts would contribute to green and sustainable chemical synthesis. This Minireview summarizes recent reports on C−H oxygenation reactions with metal‐free catalysts and molecular oxygen under visible‐light conditions.