Pd-catalyzed ligand-free desulfitative Heck reaction with arenesulfinic acid salts under air
作者:Sai Hu、Ping Xia、Kai Cheng、Chenze Qi
DOI:10.1002/aoc.2970
日期:2013.3
Palladium‐catalyzed cross‐coupling reactions of various aryl sulfinic acidsalts with a wide variety of vinyl substrates have been achieved in good to excellent yields under simple aerobic conditions at 70°C with the assistance of Cu(II) salts. The reaction can be accelerated by the combination of DMSO with THF. The reported Matsuda–Heck type coupling reactions are tolerant to the common functional
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)
Highly Efficient, Recyclable Pd(II) Catalysts with Bisimidazole Ligands for the Heck Reaction in Ionic Liquids
作者:Soon Bong Park、Howard Alper
DOI:10.1021/ol030071d
日期:2003.9.1
[reaction: see text] New Pd(II) complexes with bisimidazole ligands were prepared and proved to be effective catalysts for the Heckreaction under phosphine-free conditions using ionicliquids as solvents. This system could be recycled five times without any loss of catalytic activity.
A novel cis-chelated Pd(II)–NHC complex for catalyzing Suzuki and Heck-type cross-coupling reactions
作者:Qin Xu、Wei-Liang Duan、Zhi-Yu Lei、Zhi-Bin Zhu、Min Shi
DOI:10.1016/j.tet.2005.09.010
日期:2005.11
A novel Pd(II)–NHC complex, which has a ‘normal’ cis-chelating, bidentate structure is fairly effective in Suzuki and Heck-type cross-coupling reaction to give the products in good to excellent yields in most cases.
fiber mats (Pd/PAN) was prepared by electrospinning. The catalytic activity and recyclability of the microwave‐assisted Pd/PAN fiber mats were examined for the Mizoroki–Heckcross‐coupling of aryl iodides with three different acrylates in aqueous solution. The morphology of the prepared Pd/PAN fiber mats was characterized by scanning electron microscopy. The large size of the PAN fiber mat‐supported palladium