Rhodium(III)-Catalyzed Annulation of Azomethine Ylides with Alkynes<i>via</i>CH Activation
作者:Yuye Chen、Fen Wang、Wencui Zhen、Xingwei Li
DOI:10.1002/adsc.201200924
日期:2013.2.1
The rhodium(III)-catalyzed coupling of azomethineylides with alkynes via CH activation has been developed for the synthesis of indenamines in moderate to high yields. The coupled products can be further oxidized to indenones and derivatives.
Construction of Polyheterocyclic Skeletons through C−H Bond Activation‐Initiated Cascade Reactions by Using Cyclopropanol as Alkylating Agent as well as Masked Nucleophile and Electrophile
作者:Xueying Yang、Xinyuan Cai、Xinying Zhang、Xuesen Fan
DOI:10.1002/adsc.202301172
日期:2024.1.9
azomethine imine with cyclopropanol through in situ ring-opening, followed by cascade intramolecular C- and N-nucleophilic addition. In this tandem process, cyclopropanol acts as not only an alkylating agent but also masked nucleophile and electrophile to participate in the construction of both the indane and the bicyclic pyrazolidinone scaffolds. To our knowledge, such a cascade reaction pattern has not been
Copper(II)-Catalyzed Exo and Enantioselective Cycloadditions of Azomethine Imines
作者:Mukund P. Sibi、Digamber Rane、Levi M. Stanley、Takahiro Soeta
DOI:10.1021/ol800904t
日期:2008.7.17
A strategy for exo and enantioselective 1,3-dipolar cycloaddition of azomethine imines to 2-acryloyl-3-pyrazolidinone is described. The corresponding cycloadducts are isolated with high diastereoselectivities (up to >96:4 exo/endo) and enantioselectivities (up to 98% ee).
Rh(III)-catalyzed oxidative synthesis of pyrazoles from azomethines and acrylamides
作者:Wencui ZHEN、Zhengyin DU、Xingwei LI
DOI:10.1016/s1872-2067(12)60584-1
日期:2013.4
A cationic Rh(III) complex has been developed to catalyze the oxidative coupling of azomethine imines to acrylamides, to give trisubstituted pyrazoles in moderate yield. In this process, the olefinic C-H bond of the acrylamide undergoes C-H activation, and the reaction subsequently proceeds via a different selectivity to that reported for the coupling of acrylate esters. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.