A convenient phosphine-free palladium-catalyzed direct arylation of thiazole under mild aerobic conditions

作者:He, Xiao-Xi; Li, Yan-Fang; Huang, Ju*; Shen, Dong-Sheng; Liu, Feng-Shou
来源:Journal of Organometallic Chemistry, 2016, 803: 58-66.
DOI:10.1016/j.jorganchem.2015.12.009

摘要

A series of bulky amine palladium complexes {[(Ar-NH2)(2)PdCl2]} were synthesized and characterized. The catalytic activity of the palladium complexes was evaluated via the direct C-H arylation of thiazoles with aryl bromides in aerobic conditions at 80-100 degrees C. Under the optimal conditions, 0.5-0.05 mol% of the bulky palladium complexes were found to be very efficient and produced the desired cross-coupling products in high yields.