Copper-Catalyzed Formal Dehydrogenative Coupling of Carbonyls with Polyfluoroarenes Leading to β-C–H Arylation
作者:Weilong Xie、Dongwook Kim、Sukbok Chang
DOI:10.1021/jacs.0c10904
日期:2020.12.9
We herein communicate a formal dehydrogenativecoupling of carbonyls with polyfluoroarenes enabled by Cu catalysis. Silyl enol ethers initially prepared from carbonyls are postulated to undergo the copper-mediated oxidative dehydrogenativecoupling with polyfluoroarenes via a radicalpathway. Including cyclic and linear ketones, aldehydes, and esters, a broad range of β-aryl carbonyl products were
我们在此交流了通过 Cu 催化实现的羰基与多氟芳烃的正式脱氢偶联。假设最初由羰基化合物制备的甲硅烷基烯醇醚通过自由基途径与多氟芳烃进行铜介导的氧化脱氢偶联。包括环状和线性酮、醛和酯在内,以高区域和立体选择性和优异的官能团耐受性有效地获得了广泛的 β-芳基羰基产物。
Reversal of .pi.-facial diastereoselection upon electronegative substitution of the substrate and the reagent
作者:Andrzej S. Cieplak、Bradley D. Tait、Carl R. Johnson
DOI:10.1021/ja00204a018
日期:1989.10
Les reactions examinees incluent les additions d'alkyllithiums, les oxymercurations, les osmylations et les epoxydations pour des cyclohexanones et des methylenecyclohexanes substitues
Les 反应受试者影响 les 加成 d'烷基锂、les oxymercurations、les osmylations 和 les 环己酮和亚甲基环己烷替代物的环氧基化