One Substrate, Two Modes of C–H Functionalization: A Metal-Controlled Site-Selectivity Switch in C–H Arylation Reactions
作者:Virendra Kumar Tiwari、Neha Kamal、Manmohan Kapur
DOI:10.1021/acs.orglett.6b03558
日期:2017.1.6
site-selectivity switch has been achieved in the ruthenium-catalyzed C–H arylation reaction of N-acetyl-1,2-dihydroisoquinolines. This metal-mediated switch is antipodal to the previous report on the palladium-mediated C-4 C–H arylation on the same substrate. Mechanistic details reveal interesting aspects of the reaction pathway, and kinetic studies bring out the difference in the modes of C–H activation
在钌催化的N-乙酰基1,2,2-二氢异喹啉的C–H芳基化反应中,已经实现了独特的位点选择性转换。这种金属介导的开关与先前报道的在同一基质上钯介导的C-4 C–H芳基化反应相反。机理细节揭示了反应途径的有趣方面,动力学研究揭示了两种催化体系采用的C–H活化方式的差异。