The reaction of N-Ts-(2-bromophenyl)alkylamines with aldehydes in the presence of a catalytic amount of a rhodium complex results in the intramolecular aminocarbonylation of the aryl halides to give five-, six-, and seven-membered benzolactams.
HCl‐Catalyzed Aerobic Oxidation of Alkylarenes to Carbonyls
作者:Kaikai Niu、Xiaodi Shi、Ling Ding、Yuxiu Liu、Hongjian Song、Qingmin Wang
DOI:10.1002/cssc.202102326
日期:2022.1.21
Metal-free: A simple and practical chlorine radical-mediated aerobic oxidation of alkylarenes to carbonyls under metal-free conditions is developed. The process exhibits excellent functional group tolerance and a broad substrate scope without the requirement for external metal and oxidants.
Oxidation of benzylic ethers, tosylamides, and 9,10-dihydroanthracene could be performed efficiently under O2 and CO atmosphere in the presence of PdCl2-CuCl2 catalysts to give the corresponding esters (lactones), amides and anthraquinone, respectively.
Visible light mediated oxidation of benzylic sp<sup>3</sup> C–H bonds using catalytic 1,4-hydroquinone, or its biorenewable glucoside, arbutin, as a pre-oxidant
作者:Laura C. Finney、Lorna J. Mitchell、Christopher J. Moody
DOI:10.1039/c7gc03741d
日期:——
a sustainable alternative for the late stage oxidative functionalization of benzylicC–Hbonds. It is applicable to a range of cyclic benzylic ethers such as isochromans and phthalans, and simple benzyl alkyl ethers. It can also be applied in the oxidation of benzylic amines into amides, and of diarylmethanes into the corresponding ketones. Mechanistic studies suggest that the reaction proceeds by