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AssigneeNanjing Tech University
InventorsYufeng Li, Hongjun Zhu, Hongfei Ma, Hongzhong Bu, Jieqing Wu, Jiefan Gu, Jiwei Chen, Haoyue Zhang, Chen Wang
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Provided is a photo-oxidation reaction of benzylic C—H bonds of an aromatic compound under the catalysis of an acid catalyst. The method aims to synthesize aromatic acids and acetophenones. The acid catalyst is one of Bronsted acids, including one or a mixture of two or more selected from the group consisting of hydrochloric acid, phosphoric acid, sulfuric acid, p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, trifluoroacetic acid, and potassium hydrogen sulfate, as well as N-propylsulfonate pyridinium hydrogensulfate, N-butylsulfonate pyridinium hydrogensulfate, N-propylsulfonate pyridinium trifluoromethanesulfonate, N-butylsulfonate pyridinium trifluoromethanesulfonate, N-propylsulfonate pyridinium tetrafluoroborate, and N-butylsulfonate pyridinium tetrafluoroborate. The oxidation reaction is conducted under mild conditions (normal temperature and pressure) using air or oxygen as the oxidant in the presence of recyclable catalyst and solvent.
An acid-catalyzed photocatalyzed oxidation reaction of benzylic C—H bonds of an aromatic compound, wherein the liquid-phase oxidation reaction is conducted with oxygen or air as the oxidants using Bronsted acid as the photocatalyst at normal pressure under light irradiation with a wavelength range of 300 nm to 450 nm.
Dependencies are inferred from the claim text.