Palladium-Catalyzed Direct Ortho Aroylation of 2-Phenoxypyridines with Aldehydes and Catalytic Mechanism Investigation
作者:Jean-Ho Chu、Shih-Tien Chen、Meng-Fan Chiang、Ming-Jung Wu
DOI:10.1021/om501330h
日期:2015.3.9
aldehydes leading to aryl ketones by the use of palladium(II) acetate, tert-butyl hydroperoxide, and chlorobenzene as the catalyst, oxidant, and solvent, respectively, is presented. Intra- and intermolecular kinetic isotope effects, radical trapping, and controlled experiments were carried out to support the proposed catalytic mechanism for the reaction. Syntheses of (2-hydroxyphenyl)(phenyl)methanones and
通过使用乙酸钯(II),叔丁基氢过氧化物和氯苯分别作为催化剂,氧化剂和溶剂,提出了2-苯氧基吡啶与醛的直接邻芳基化,从而产生芳基酮。进行了分子内和分子间动力学同位素效应,自由基捕获和受控实验,以支持所提出的反应机理。证明了由邻芳基化的2-苯氧基吡啶定向的(2-羟基苯基)(苯基)亚甲基和1-羟基-9 H-芴-9-的合成。