Photochemical O–H Functionalization of Aryldiazoacetates with Phenols via Proton Transfer
作者:Claire Empel、Sripati Jana、Chao Pei、Thanh Vinh Nguyen、Rene M. Koenigs
DOI:10.1021/acs.orglett.0c02564
日期:2020.9.18
In this work, we report a thorough investigation of the reaction of phenols with aryldiazoacetates. Mechanistic studies using different spectroscopic methods and theoretical calculations suggest a hydrogen bond between phenol and aryldiazoacetates, which can be modulated by the phenol acidity. The pK(A) of phenol and therefore the hydrogen bond plays an important role in a subsequent photoinduced proton transfer reaction to give the formal O-H functionalization product of phenols.