An effective Pd nanocatalyst in aqueous media: stilbene synthesis by Mizoroki–Heck coupling reaction under microwave irradiation
作者:Carolina S García、Paula M Uberman、Sandra E Martín
DOI:10.3762/bjoc.13.166
日期:——
Aqueous Mizoroki-Heck coupling reactions under microwave irradiation (MW) were carried out with a colloidal Pd nanocatalyst stabilized with poly(N-vinylpyrrolidone) (PVP). Many stilbenes and novel heterostilbenes were achieved in good to excellent yields starting from aryl bromides and different olefins. The reaction was carried out in a short reaction time and with low catalyst loading, leading to
A New Series of PDGF Receptor Tyrosine Kinase Inhibitors: 3-Substituted Quinoline Derivatives
作者:Martin P. Maguire、Kimberly R. Sheets、Karen McVety、Alfred P. Spada、Asher Zilberstein
DOI:10.1021/jm00040a003
日期:1994.7
(PDGF-RTK) activity. The compounds were generally prepared either by a Friedlander condensation between an aryl-acetaldehyde and an o-aminobenzaldehyde or by a palladium-catalyzedcoupling between an aryl bromide or triflate and an organostannane or organozinc chloride. The presence of 6,7-dimethoxy groups on the quinoline ring was found to be advantageous although not essential for potent inhibition
Bulky Monodentate Biphenylarsine Ligands: Synthesis and Evaluation of Their Structure Effects in the Palladium-Catalyzed Heck Reaction
作者:Gisela J. Quinteros、Paula M. Uberman、Sandra E. Martín
DOI:10.1002/ejoc.201403658
日期:2015.4
Fil: Quinteros, Gisela Julieta. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Instituto de Investigaciones en Fisico-quimica de Cordoba. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Instituto de Investigaciones en Fisico-quimica de Cordoba; Argentina
菲尔:金特罗斯、吉塞拉·朱丽叶。Consejo Nacional de Investigaciones Cientificas y Tecnicas。Centro Cientifico Tecnologico Conicet - 科尔多瓦。Instituto de Investigaciones en Fisico-quimica de Cordoba。科尔多瓦国立大学。Facultad de Ciencias Quimicas。Instituto de Investigaciones en Fisico-quimica de Cordoba;阿根廷
Microwave-assisted C-C cross-coupling reactions of aryl and heteroaryl halides in water
作者:Kamal M. Dawood、Moteaa M. El-Deftar
DOI:10.3998/ark.5550190.0011.930
日期:——
The catalytic activity of a benzimidazole-oxime Pd(II)-complex towards Suzuki and Heck C-Ccross-couplingreactions of activated and deactivated aryl- and heteroaryl bromides under microwave irradiation as well as thermal heating using water as a green solvent was evaluated. The turnover frequency reached 420,000 under microwave condition.
评估了苯并咪唑-肟 Pd(II)-配合物在微波照射下以及使用水作为绿色溶剂的热加热下对 Suzuki 和 Heck CC 交叉偶联反应的活化和失活芳基溴化物和杂芳基溴化物的催化活性。微波条件下周转次数达到42万次。
An efficient Pd–NHC catalyst system in situ generated from Na<sub>2</sub>PdCl<sub>4</sub> and PEG-functionalized imidazolium salts for Mizoroki–Heck reactions in water
作者:Nan Sun、Meng Chen、Liqun Jin、Wei Zhao、Baoxiang Hu、Zhenlu Shen、Xinquan Hu
DOI:10.3762/bjoc.13.168
日期:——
PEG-functionalized imidazolium salts L1-L3 were designed and prepared from commercially available materials via a simple method. Their corresponding water soluble Pd-NHC catalysts, in situ generated from the imidazolium salts L1-L3 and Na2PdCl4 in water, showed impressive catalytic activity for aqueous Mizoroki-Heck reactions. The kinetic study revealed that the Pd catalyst derived from the imidazolium salt L1