Herein, we report a catalyst system for Pd-catalyzed decarbonylative Suzuki–Miyauracross-coupling of aroyl chlorides with boronic acids to furnish biaryls. This strategy is suitable for a broad range of common aroyl chlorides and boronic acids. The synthetic utility is highlighted in the direct late-stage functionalization of pharmaceuticals and natural products capitalizing on the presence of carboxylic
[DE] VERFAHREN ZUR DURCHFÜHRUNG CHEMISCHER REAKTIONEN UNTER BETEILIGUNG VON AN FLUORIERTEN TRÄGERMATERIALIEN ÜBER FLUOR-FLUOR-WECHSELWIRKUNGEN ADSORBIERTEN VERBINDUNGEN<br/>[EN] METHOD FOR CARRYING OUT CHEMICAL REACTIONS INVOLVING COMPOUNDS ADSORBED ON FLUORINATED CARRIER MATERIALS BY MEANS OF FLUORINE-FLUORINE INTERACTIONS<br/>[FR] PROCEDE DE REALISATION DE REACTIONS CHIMIQUES EN PRESENCE DE COMPOSES ABSORBES SUR DES SUPPORTS FLUORES PAR INTERACTIONS FLUOR-FLUOR
申请人:UNIV ALBERT LUDWIGS FREIBURG
公开号:WO2004013068A1
公开(公告)日:2004-02-12
Die Erfindung betrifft ein Verfahren zur Durchführung einer chemischen Reaktion einer Verbindung B unter Beteiligung einer Verbindung A-F, wobei die Verbindung A-F an einem fluorierten Trägermaterial FT über Fluor-Fluor-Wechselwirkungen unter Bildung eines Adduktes (A-F):(FT) adsorbiert ist, dadurch gekenn-zeichnet, dass das Addukt (A-F):(FT) in einem geeigneten Lösungsmittel, welches die Verbindung B enthält, suspendiert wird, wordurch die Verbindung B unter Beteiligung der adsorbierten Verbindung A-F zu dem Reaktionsprodukt B' reagiert.
Enhancement of Suzuki–Miyaura coupling reaction by photocatalytic palladium nanoparticles anchored to TiO2 under visible light irradiation
作者:Mehdi Koohgard、Mona Hosseini-Sarvari
DOI:10.1016/j.catcom.2018.03.026
日期:2018.6
surface plasmonresonance. This visible-light-harvesting heterogeneous photocatalyst sufficiently promoted substrates toward coupling reaction products at ambient temperature in aqueous media. Photo-generated electron-hole pairs under visiblelight irradiation, are the key components of activation of the substrates.
铃木-宫浦偶合(SMC)反应的Pd固定在TiO 2上的等离子性质和催化性能已有报道。与以前的报道不同,这种带隙≥3eV的半导体可以为SMC提供CC键形成。纳米Pd / TiO 2是通过光沉积法在阳光下成功合成的。Pd纳米粒子在TiO 2表面上的尺寸导致局部表面等离子体激元共振的增强。在环境温度下在水性介质中,这种收集可见光的非均相光催化剂足以促进底物趋向于偶联反应产物。可见光照射下光生电子空穴对是激活基片的关键因素。
PEG (300)–PdCl2 promoted efficient and convenient Suzuki–Miyaura coupling of aryl chlorides with arylboronic acids
作者:Liang Yin、Zhan-hui Zhang、Yong-mei Wang
DOI:10.1016/j.tet.2006.07.067
日期:2006.10
PEG (300) was found as an effective medium for the PdCl2-catalyzed Suzuki–Miyaura cross-coupling of arylchlorides with various phenylboronic acids. This cross-coupling pathway conveniently and efficiently gave good to excellent yields of corresponding biaryl nucleus under mild conditions.
Canopied trans-chelating bis(N-heterocyclic carbene) ligand: synthesis, structure and catalysis
作者:Brad P. Morgan、Gabriela A. Galdamez、Robert J. Gilliard, Jr.、Rhett C. Smith
DOI:10.1039/b815739a
日期:——
pseudo-square planar [PdCl(2)()] showed a similar binding mode of (C-Pd-C = 177 degrees ). High yields were obtained in Suzuki-Miyaura coupling reactions utilizing [PdCl(2)()] as the procatalyst and the results were compared with analogous complexes of trans-spanning diphosphine () and diphosphinite () complexes. The diphosphinite complex, [PdCl(2)()], decomposes to [mu-ClPd(PPh(2)OH)(PPh(2)O)](2) at room