Mechanism studies of oxidation and hydrolysis of Cu(I)–NHC and Ag–NHC in solution under air
作者:Dazhi Li、Thierry Ollevier
DOI:10.1016/j.jorganchem.2019.121025
日期:2020.1
The decomposition of copper(I)–NHC and silver-NHC complexes in solution under air was studied. The Cu(I)–NHCs were oxidized into urea derivatives and hydrolysed into imidazoliums or benzimidazoliums. The decomposition of Ag–NHC with a saturated backbone led to ring-opening product, while the Ag–NHC with an unsaturated backbone led to imidazolium and Ag-bisNHC complex. The effects of steric property
Process for Production of 2-(Substituted Phenyl)-3,3,3-Trifluoropropene Compound
申请人:Matoba Kazutaka
公开号:US20100160683A1
公开(公告)日:2010-06-24
There is provided a novel process for production of a 2-(substituted phenyl)-3,3,3-trifluoropropene.
Disclosed is a process for production of a 2-(substituted phenyl)-3,3,3-trifluoropropene compound represented by the formula (7) or a salt thereof The process comprises reacting a compound represented by the formula (1) (X is an alkyl group, etc.) with a compound represented by the formula (2) (Y is a halogen atom, etc.) in the presence of a catalyst represented by the formula (3) (M is an ion of a metal belonging to Group 10 on the elementary periodic table which has an oxidation state number of 1 to 8; G is a unidentate or multidentate ligand; L is a phosphine compound represented by the formula (4) which is bound to the center metal M or is a carbene selected from those represented by the formulae (5) and (6), provided that L's may be same as or different from one another when a is 2 to 5; A represents a univalently or multivalently charged anion; b represents an integer of 1 to 3; a represents an integer of 1 to 5·b; c represents 0 or an integer of 1 to 4·b; and n represents an integer of 1 to 6).
Stable and active Ru olefin metathesis catalyst 7 bearing a sterically reduced NHC ligand was synthesized. Upon action of pyridine, 7 forms complex 24, the first example of an Ru–indenylidene catalyst bearing a labile pyridine ligand and a sterically less demanding NHC ligand.
[EN] NOVEL METAL COMPLEXES, ESPECIALLY THE RUTHENIUM COMPLEXES, AND USE THEREOF<br/>[FR] NOUVEAUX COMPLEXES MÉTALLIQUES, EN PARTICULIER LES COMPLEXES DE RUTHÉNIUM, ET LEUR UTILISATION
申请人:UNIV WARSZAWSKI
公开号:WO2014027040A1
公开(公告)日:2014-02-20
The object of the invention is a novel metal complex of the formula (1), the parameters of which are as defined in the description of the invention, as well as use of the metal complex of the formula (1) in the olefin metathesis reactions.
[EN] PREPARATION OF SATURATED IMIDAZOLINIUM SALTS AND RELATED COMPOUNDS<br/>[FR] PRÉPARATION DE SELS D'IMIDAZOLINIUM SATURÉS ET COMPOSÉS ASSOCIÉS
申请人:MATERIA INC
公开号:WO2009062171A1
公开(公告)日:2009-05-14
Methods for the preparation of saturated imidazolinium salts and related compounds that comprises reaction of formamidines with compounds such as dihaioethane and an optional base are disclosed. Alternatively, the imidazoünium salts and related compounds can be prepared in a one-step process without purification of the formamidine reactant. These methods make it possible to obtain numerous imidazolinium salts and related compounds under solvent-free reaction conditions and in excellent yields.