Palladium supported on poly(N-vinylimidazole) or poly(N-vinylimidazole-co-N-vinylcaprolactam) as a new recyclable catalyst for the Mizoroki–Heck reaction
作者:Irina P. Beletskaya、Alexey R. Khokhlov、Elena A. Tarasenko、Vladimir S. Tyurin
DOI:10.1016/j.jorganchem.2007.06.056
日期:2007.9
A new catalytic system based on the palladium supported on poly(N-vinylimidazole) or poly(N-vinylimidazole-co-N-vinylcaprolactam) was investigated. High efficiency of the catalyst along with its recycling ability was demonstrated in the Mizoroki–Heckreaction.
Continuous Flow Palladium(II)-Catalyzed Oxidative Heck Reactions with Arylboronic Acids
作者:Luke R. Odell、Jonas Lindh、Tomas Gustafsson、Mats Larhed
DOI:10.1002/ejoc.201000063
日期:2010.4
Palladium(II)-catalyzedoxidativeHeckreactions were investigated under continuousflow conditions. Selective, fast and convenient protocols for the coupling of arylboronicacids with electron-rich and electron-poor olefins were developed by using a commercially available flow reactor.
在连续流动条件下研究了钯 (II) 催化的氧化 Heck 反应。通过使用市售流动反应器开发了用于将芳基硼酸与富电子和缺电子烯烃偶联的选择性、快速和方便的方案。
Rhodium-catalyzed Heck-type reaction of arylboronic acids with α,β-unsaturated esters: tuning β-hydrogen elimination vs. hydrolysis of alkylrhodium species
作者:Gang Zou、Zhiyong Wang、Junru Zhu、Jie Tang
DOI:10.1039/b305771m
日期:——
The elusive rhodium-catalyzed Heck-type coupling of arylboronic acids with alpha,beta-unsaturated esters is effected using rhodium chloride as catalyst, indicating the hydrolysis of Rh-C bond could be finely tuned by the steric environment around rhodium.
Rhodium(II)-Catalyzed Nondirected Oxidative Alkenylation of Arenes: Arene Loading at One Equivalent
作者:Harit U. Vora、Anthony P. Silvestri、Casper J. Engelin、Jin-Quan Yu
DOI:10.1002/anie.201310539
日期:2014.3.3
bimetallic RhII catalyst promoted the CH alkenylation of simple arenes at 1.0 equivalent without the use of a directing group. A phosphine ligand as well as cooperative reoxidation of RhII with Cu(TFA)2 and V2O5 proved essential in providing monoalkenylated products in good yields and selectivities, especially with di‐ and trisubstituted arenes.
双金属的Rh II催化剂促进与c H在1.0当量,而无需使用定向基团的简单的芳烃的烯基化。膦配体以及Rh II与Cu(TFA)2和V 2 O 5的协同再氧化被证明对于以高收率和选择性提供单烯基化产物至关重要,特别是对于二取代和三取代的芳烃。
Pd nanoparticles immobilized on poly(NIPAM-co-4-VP) hydrogel: Highly active and reusable catalyst for carbon–carbon coupling reactions in water
with a lower critical solution temperature (LCST) in water. Pdnanoparticles were immobilized on these poly(NIPAM-co-4-VP) hydrogels. The heterogeneous Pdcatalyst showed high catalytic activities for carbon–carbon couplingreactions, such as Suzuki–Miyaura, Heck–Mizoroki, and Sonogashira couplingreactions in water. The Pdcatalystimmobilized on poly(NIPAM-co-4-VP) hydrogel (NIPAM:4-VP = 1:1 M ratio)