Catalyst- and Oxidizing Reagent-Free Electrochemical Benzylic C(sp<sup>3</sup>)–H Oxidation of Phenol Derivatives
作者:Zhong-Wei Hou、Ming-Ming Zhang、Wen-Chao Yang、Lei Wang
DOI:10.1021/acs.joc.2c00455
日期:2022.6.17
A site-selective electrochemical approach for the benzylic C(sp3)–H oxidation reaction of phenolderivatives along with hydrogen evolution has been developed. The protocol proceeds in an easily available undivided cell at room temperature under catalyst- and oxidizing reagent-free conditions. The corresponding aryl aldehydes and ketones are obtained in satisfactory yields, and the gram-scale synthesis
An efficient and ecofriendly method for the construction of 2,3-difunctionalized benzofuran derivatives in moderate to good yields from readily available 2-alkynylphenols has been developed. This tandem annulation process, featuring one pot, three steps, good functional group tolerance, and high atom economy, makes this transformation efficient and practical. Moreover, this protocol is scalable, illustrating its potential applications in synthetic and pharmaceutical chemistry.