Highly efficient palladium-catalyzed cross-coupling of diarylborinic acids with arenediazoniums for practical diaryl synthesis
作者:Fengze Wang、Chen Wang、Guoping Sun、Gang Zou
DOI:10.1016/j.tetlet.2019.151491
日期:2020.2
A highly efficient cross-coupling of cost-effective diarylborinic acids with both isolatable and latent arenediazoniums, i.e. tetrafluoroborates and aryltriazenes, respectively, has been developed with a practical palladium catalyst system under base-free conditions in open flask at room temperature. A variety of electronically and sterically various biaryls, in particular, those bearing a coordinative
[EN] ACYLSULFONAMIDE DERIVATIVES FOR TREATING SENESCENCE-ASSOCIATED DISEASES AND DISORDERS<br/>[FR] DÉRIVÉS ACYLSULFONAMIDE POUR LE TRAITEMENT DE MALADIES ET DE TROUBLES ASSOCIÉS À LA SÉNESCENCE
申请人:UNITY BIOTECHNOLOGY INC
公开号:WO2017101851A1
公开(公告)日:2017-06-22
Compounds represented by Formula (I) and (II) and salts thereof are described herein. The compounds or salts of Formula (I) and (II) may be used to treat senescence-associated diseases and disorders.
A simple, efficient and recyclable phosphine-free catalytic system for Suzuki–Miyaura reaction of aryl bromides
作者:Hong Zhao、Jian Peng、Ruian Xiao、Mingzhong Cai
DOI:10.1016/j.molcata.2011.01.014
日期:2011.3
The Suzuki–Miyaura reaction of aryl bromides using 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized palladium(II) complex [MCM-41-2N-Pd(II)] as an efficient heterogeneous catalyst is described. Developed catalyticsystem is found to be effective for the Suzuki–Miyaura reaction of aryl bromides with arylboronic acids providing good to excellent yield of the desired products. This heterogeneous
MCM-41-Immobilised Nitrogen and Sulfur Mixed Tridentate Palladium(0) Complex: A Highly Efficient and Recyclable Catalyst for the Suzuki Reaction of Aryl Bromides in Air
作者:Dayi Liu、Pingping Wang、Jingting Ai、Mingzhong Cai
DOI:10.3184/174751917x14878812592698
日期:2017.3
and sulfur mixed tridentate palladium(0) complex [MCM-41-2N,S-Pd(0)] was prepared from 3-(2-aminoethylamino)propyltrimethoxysilane by immobilisation on MCM-41, followed by reaction with thiophene-2-carboxaldehyde and PdCl2 and then reduction with hydrazine hydrate. This phosphine-free heterogeneous palladium(0) complex was a highly active catalyst for the Suzukireaction of aryl bromides in air and
There is provided compounds of formula I,
wherein R
1
to R
7
have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.