Cobalt(II)-Catalyzed Intermolecular Benzylic C−H Amination with 2,2,2-Trichloroethoxycarbonyl Azide (TrocN<sub>3</sub>)
作者:Hongjian Lu、Velusamy Subbarayan、Jingran Tao、X. Peter Zhang
DOI:10.1021/om900916g
日期:2010.1.25
2,2,2-Trichloroethoxycarbonyl azide (TrocN3) is an effective nitrene source for cobalt(II)-catalyzedintermolecular nitrene insertion of C−H bonds. Among different metalloporphyrins studied, Co(II)(TPP) was shown to be a competent catalyst for the selective amination of various benzylic C−H bonds under mild conditions without the need of other reagents or additives, forming the desired Troc-protected
A Synthetic Approach to <i>N</i>-Aryl Carbamates via Copper-Catalyzed Chan–Lam Coupling at Room Temperature
作者:Soo-Yeon Moon、U. Bin Kim、Dan-Bi Sung、Won-Suk Kim
DOI:10.1021/jo502828r
日期:2015.2.6
catalyst. The reaction proceeds readily in an open flask at room temperature without additional base, ligand, or additive. Rapid access to urea analogues via a two-step one-pot procedure is enabled by reacting N-arylcarbamates with aluminum–amine complexes. In addition, among several boronic acid derivatives prepared, dimethylphenyl boronate was found to react rapidly in its reaction with benzyl azidoformate
Catalytic Decarboxylative C−N Formation to Generate Alkyl, Alkenyl, and Aryl Amines
作者:Yipin Zhang、Xia Ge、Hongjian Lu、Guigen Li
DOI:10.1002/anie.202010974
日期:2021.1.25
bond formation is a reliable method for the synthesis of aryl amines. Catalytic sp3 C−N formation reactions have been reported occasionally, and methods that can realize both sp2 and sp3 C−N formation are relatively unexplored. Herein, we address this challenge with a method of catalytic decarboxylative C−N formation that proceeds through a cascade carboxylic acid activation, acyl azide formation, Curtius
Iridium-Catalyzed Unreactive C(sp<sup>3</sup>)–H Amination with 2,2,2-Trichloroethoxycarbonyl Azide
作者:Tao Zhang、Xuejiao Hu、Xunqing Dong、Guigen Li、Hongjian Lu
DOI:10.1021/acs.orglett.8b02738
日期:2018.10.5
An additive-assisted iridium-catalyzed directed C(sp3)–H amination with 2,2,2-trichloroethoxycarbonyl azide as an amino source is reported. Both carboxylate anions and the corresponding cations in the additives are crucial to achieve satisfactory efficiency. Sodium acetate or n-pentanoic acid can promote the amination of various primary C(sp3)–H bonds adjacent to secondary, tertiary, and quaternary
Method of producing optically active sulfimide compounds
申请人:KYUSHU UNIVERSITY
公开号:EP1452523A2
公开(公告)日:2004-09-01
An optically active sulfimide compound is produced by using a specified Ru(salen)(CO) complex as a catalyst and subjecting a specified alkyl aryl sulfide compound to an asymmetric sulfimidation with a specified azide compound having an easily eliminating group.