Ruthenium(II)‐Catalyzed CH Activation with Isocyanates: A Versatile Route to Phthalimides
作者:Suman De Sarkar、Lutz Ackermann
DOI:10.1002/chem.201404261
日期:2014.10.20
A cationic ruthenium(II)‐complex was utilized in the efficient synthesis of phthalimide derivatives by CHactivation with synthetically useful amides. The reaction proceeded through a mechanistically unique insertion of a cycloruthenated species into a CHet multiple bond of isocyanate. The novel method also proved applicable for the synthesis of heteroaromatic unsymmetric diamides as well as a potent
Rhodium-Catalyzed Regio-, Diastereo-, and Enantioselective Three-Component Carboamination of Dienes via C–H Activation
作者:Ruijie Mi、Xuepeng Zhang、Jinlei Wang、Haohua Chen、Yu Lan、Fen Wang、Xingwei Li
DOI:10.1021/acscatal.1c01615
日期:2021.6.4
Reported herein is the rhodium-catalyzed enantioselective three-component coupling of arene, diene, and dioxazolone that occurs via C–H activation en route to allyl intermediate. This carboamination reaction affords chiral allylic amines in 1,2-selectivity, E-selectivity, and enantioselectivity, with electrophilic amination of the π-allyl species being both regio- and enantio-determining.
acylation of symmetrical carboxylic anhydrides has inherited limitation of reaction efficiency along with relatively poor reactivity. Traditionally, one equivalent carboxylic acid is generated during nucleophilic acylation of a symmetrical anhydride, which always limits the yield of final product to 50% or less. This is a major drawback, which discourages the use of anhydrides for laboratory or industrial
Rh(<scp>iii</scp>)-catalyzed C–H activation/cyclization of benzamides and diazo compounds to form isocoumarins and α-pyrones
作者:Xing Guang Li、Min Sun、Kai Liu、Qiao Jin、Pei Nian Liu
DOI:10.1039/c4cc09314c
日期:——
Rhodium-catalyzed intermolecular cyclization of benzamides and diazo compounds via C–H activation has been achieved to construct C–C/C–O bonds for the first time.
铑催化的苯酰胺和重氮化合物的分子间环化反应通过C-H活化已经实现,首次构建了C-C/C-O键。
THERAPEUTIC AGENT FOR TAUOPATHIES
申请人:Sumitomo Pharma Co., Ltd.
公开号:EP4104861A1
公开(公告)日:2022-12-21
The present invention is to provide a medicament for treating and/or preventing tauopathy by activating the voltage-gated sodium channel (Nav). The present invention relates to a medicament for treating and/or preventing tauopathy, comprising a Nav activator as an active ingredient.