Palladium-Catalyzed Site-Selective C(sp<sup>3</sup>)–H Arylation of Phenylacetaldehydes
作者:Bo-Bo Gou、Hang-Fan Liu、Jie Chen、Ling Zhou
DOI:10.1021/acs.orglett.9b02650
日期:2019.9.6
describe a Pd-catalyzed selective C-H arylation reaction of phenylacetaldehydes using l-valine as the transient directing group. This process showed a broad substrate scope and excellent selectivity in which a ligand-controlled functionalization of the unactivated β-C(sp3)-H bond. In addition, enantioselective arylation of phenylacetaldehydes was preliminarily explored by utilizing a bulky chiral transient