Journal of Organic Chemistry p. 9786 - 9791 (2019)
Update date:2022-08-05
Topics:
Lv, Weiwei
Wen, Si
Liu, Jing
Cheng, Guolin
A palladium-catalyzed methylation of C-H bonds of benzoic acids with di-tert-butyl peroxide as the methylating reagent under an external oxidant and ligand-free conditions has been achieved. The reaction is found to be directed by a weakly coordinating carboxyl group, offering a facile route for the synthesis of highly functionalized ortho-methyl benzoic acids.
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