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。
PHOSPHONIUM ION CHANNEL BLOCKERS AND METHODS FOR USE
申请人:Nocion Therapeutics, Inc.
公开号:US20210128589A1
公开(公告)日:2021-05-06
The invention provides compounds of Formula (I), or pharmaceutically acceptable salts thereof:
The compounds, compositions, methods and kits of the invention are useful for the treatment of pain, itch, and neurogenic inflammation.
Gold(I)-Catalyzed Intermolecular Addition of Phenols and Carboxylic Acids to Olefins
作者:Cai-Guang Yang、Chuan He
DOI:10.1021/ja050392f
日期:2005.5.1
Ph3PAuOTf can catalyze efficient intermolecular addition of phenols and carboxylic acids to olefins under relatively mild conditions.
Ph3PAuOTf 可以在相对温和的条件下催化苯酚和羧酸向烯烃的有效分子间加成。
The acid-catalysed addition of phenols and acetic acid to alkenes
作者:D. T. Dalgleish、D. C. Nonhebel、P. L. Pauson
DOI:10.1039/j39710001174
日期:——
High yields of ethers are obtained from the title reaction using fluoroboric acid as catalyst. Competitive reactions between cyclohexene and oct-1-ene show remarkably small but solvent dependent selectivity. Addition of aceticacid to the same pair of alkenes is similarly unselective.
The invention provides compounds of Formula (I), or pharmaceutically acceptable salts thereof:
The compounds, compositions, methods and kits of the invention are useful for the treatment of pain, itch, and neurogenic inflammation.
The invention provides biaryl meta-pyrimidine compounds having the general structure (A). The pyrimidine compounds of the invention are capable of inhibiting kinases, such as members of the Jak kinase family, and various other specific receptor and non-receptor kinases.