A simple triphenylphosphine-ligated cobalt catalyst is reported for the direct ortho-C-H methylation and ethylation of aromatic, heteroaromatic, alkenyl, and even aliphatic carboxamides with inexpensive organoaluminumreagents in the presence of a cheap alkyl chloride as oxidant. This reaction shows monoselectivity in contrast with previously established C-H methylation methodologies.
Nickela‐electrocatalyzed Mild C−H Alkylations at Room Temperature
作者:Ramesh C. Samanta、Julia Struwe、Lutz Ackermann
DOI:10.1002/anie.202004958
日期:2020.8.10
nickel catalysis commonly requires high reaction temperatures and strong bases, translating into limited substrate scope. Herein, nickel‐catalyzed C−H alkylations of unactivated 8‐aminoquinoline amides have been realized under exceedingly mild conditions, namely at room temperature, with a mild base and a user‐friendly electrochemical setup. This electrocatalyzed C−H alkylation displays high functional
[EN] HISTONE DEACETYLASE 6 INHIBITORS AND USE THEREOF<br/>[FR] INHIBITEURS DE L'HISTONE DÉSACÉTYLASE 6 ET LEURS UTILISATIONS
申请人:DCB-USA LLC
公开号:WO2017200966A1
公开(公告)日:2017-11-23
Disclosed is hydroxamic acid compounds of Formula (I) set forth herein. Also disclosed are a pharmaceutical composition containing such a compound and a method of using the compound for treating a condition associated with histone deacetylase 6.
[EN] HISTONE DEACETYLASE 6 INHIBITORS AND METHOD FOR TREATING NEUROPATHIC PAIN<br/>[FR] INHIBITEURS D'HISTONE DÉSACÉTYLASE 6 ET MÉTHODE DE TRAITEMENT DE LA DOULEUR NEUROPATHIQUE
申请人:UNIV TAIPEI MEDICAL
公开号:WO2021013163A1
公开(公告)日:2021-01-28
Disclosed herein are hydroxamic acid compounds. Also disclosed is a method of using the hydroxamic acid compounds for treating a condition associated with histone deacetylase 6.
作者:Tristan von Münchow、Suman Dana、Yang Xu、Binbin Yuan、Lutz Ackermann
DOI:10.1126/science.adg2866
日期:2023.3.10
Enantioselective redox transformations typically rely on costly transition metals as catalysts and often stoichiometric amounts of chemical redox agents as well. Electrocatalysis represents a more sustainable alternative, in particular through the use of the hydrogen evolution reaction (HER) in place of a chemical oxidant. In this work, we describe strategies for HER-coupled enantioselective aryl carbon-hydrogen
对映选择性氧化还原转化通常依赖昂贵的过渡金属作为催化剂,并且通常还依赖化学计量的化学氧化还原剂。电催化代表了一种更可持续的替代方案,特别是通过使用析氢反应 (HER) 代替化学氧化剂。在这项工作中,我们描述了使用钴代替贵金属催化剂进行不对称氧化的 HER 偶联对映选择性芳基碳氢键 (C-H) 活化反应的策略。因此,实现了羧酸酰胺的高度对映选择性碳-氢和氮-氢(C-H 和 N-H)环化,从而获得点和轴向手性化合物。此外,