通过醇与芳基卤的交叉偶联形成芳基-烷基醚键代表了对经典S N 2 方法的有用的战略偏离。过去几年出现了许多依赖钯基、铜基和镍基催化系统的策略。在此,我们公开了一种镍催化电化学驱动方案,以一种操作简单的方式在广泛的底物范围内实现这种有用的转化。这种电化学方法不需要强碱、昂贵的外源过渡金属催化剂(例如铱、钌),并且可以轻松地在批量或流动设置中扩大规模。有趣的是,与机械相关的光化学变体相比,电子醚化表现出增强的底物范围,因为它耐受醇亲核试剂中的叔胺官能团。
The invention relates to aminopyrimidine compounds useful for treating diseases mediated by polo-like kinase 1 (Plk1). The invention also relates to the therapeutic use of such aminopyrimidine compounds and compositions thereof in treating disease states associated with abnormal cell growth and unwanted cell proliferation.
The invention relates to aminopyrimidine compounds useful for treating diseases mediated by polo-like kinase 1 (Plk1). The invention also relates to the therapeutic use of such aminopyrimidine compounds and compositions thereof in treating disease states associated with abnormal cell growth and unwanted cell proliferation.
Chemoselective, Scalable Nickel‐Electrocatalytic
<i>O</i>
‐Arylation of Alcohols
作者:Hai‐Jun Zhang、Longrui Chen、Martins S. Oderinde、Jacob T. Edwards、Yu Kawamata、Phil S. Baran
DOI:10.1002/anie.202107820
日期:2021.9.13
The formation of aryl-alkyl ether bonds through cross coupling of alcohols with aryl halides represents a useful strategic departure from classical SN2 methods. Numerous tactics relying on Pd-, Cu-, and Ni-based catalytic systems have emerged over the past several years. Herein we disclose a Ni-catalyzed electrochemically driven protocol to achieve this useful transformation with a broad substrate
通过醇与芳基卤的交叉偶联形成芳基-烷基醚键代表了对经典S N 2 方法的有用的战略偏离。过去几年出现了许多依赖钯基、铜基和镍基催化系统的策略。在此,我们公开了一种镍催化电化学驱动方案,以一种操作简单的方式在广泛的底物范围内实现这种有用的转化。这种电化学方法不需要强碱、昂贵的外源过渡金属催化剂(例如铱、钌),并且可以轻松地在批量或流动设置中扩大规模。有趣的是,与机械相关的光化学变体相比,电子醚化表现出增强的底物范围,因为它耐受醇亲核试剂中的叔胺官能团。