[EN] NOVEL TRANSITION METAL COMPLEXES, THEIR PREPARATION AND USE<br/>[FR] NOUVEAUX COMPLEXES DE MÉTAUX DE TRANSITION, LEUR PRÉPARATION ET UTILISATION
申请人:LANXESS DEUTSCHLAND GMBH
公开号:WO2014187973A1
公开(公告)日:2014-11-27
Novel transition metal complexes are provided which represent viable catalysts for a broad variety of reactions such as hydrogenation reactions and metathesis reactions. Novel preparation processes are made available via unprecedented routes inter alia not involving structures according to Grubbs I or Grubbs II catalysts.
作者:Qi-Liang Yang、Yi-Kang Xing、Xiang-Yang Wang、Hong-Xing Ma、Xin-Jun Weng、Xiang Yang、Hai-Ming Guo、Tian-Sheng Mei
DOI:10.1021/jacs.9b11915
日期:2019.12.4
Synergistic use of electrochemistry and organometallic catalysis has emerged as a powerful tool for site-selective C-H functionalization, yet this type of transformation has thus far mainly been limited to arene C-H functionaliza-tion. Herein, we report the development of electrochemi-cal vinylic C-H functionalization of acrylic acids with al-kynes. In this reaction an iridium catalyst enables C-H/O-H
The ubiquitousness of esters and amide functionalities makes their coupling reaction one of the most sought-after organic transformations. Herein, we have described an efficient microwave-assisted synthesis of esters and amides. Soluble triphenylphosphine, in conjugation with molecular iodine, gave the desired products without the requirement for a base/catalyst. In addition, a solid-phase synthetic
[EN] RUTHENIUM-BASED COMPLEX CATALYSTS<br/>[FR] CATALYSEURS COMPLEXES À BASE DE RUTHÉNIUM
申请人:GOVERNING COUNCIL OF UNIVERSITY OF TORONTO
公开号:WO2013024119A1
公开(公告)日:2013-02-21
The present invention provides novel Ruthenium-based transition metal complex catalysts comprising specific ligands, their preparation and their use in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, and olefin selective.
申请人:THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
公开号:EP2949656A1
公开(公告)日:2015-12-02
The present invention provides stable, cyclic bent allene metal complexes and methods of conducting chemical processes, preferably olefin hydrogenation, comprising contacting an olefin substrate, preferably an unsaturated polymer, with a cyclic bent allene metal complex as described herein, under hydrogenation conditions.
wherein
M is a transition metal selected from Groups 6-11 of the periodic table,
L1 is a cyclic bent allene ligand according to the general formula (II)