Green synthesis of fluorinated biaryl derivatives via thermoregulated ligand/palladium-catalyzed Suzuki reaction
作者:Ning Liu、Chun Liu、Zilin Jin
DOI:10.1016/j.jorganchem.2011.04.007
日期:2011.7
and material science due to their unique physical properties. This paper reports an efficient and environmentally benign protocol for the Suzukireaction of aryl halides with fluorinated arylboronic acids over a thermoregulated ligand/palladium catalyst using water as sole medium, affording a variety of fluorinated biaryls, including fluorinated liquid crystals, in excellent yields. The catalyst could
The air-stable and highly efficient P, N-chelated palladium(II) complexes as catalysts for the Suzuki cross-coupling reaction at room temperature
作者:Mengping Guo、Fangfang Jian、Ren He
DOI:10.1016/j.tetlet.2006.01.029
日期:2006.3
Two air-stableP, N-chelated palladium(II) complexes have been evaluated as highly efficient and simple catalysts for Suzuki cross-couplingreaction between aryl bromides and arylboronic acids. They exhibit high activity and selectivity at room temperature.
Metallomicelles of palladium(II) complexes as efficient catalysts for the Suzuki-Miyaura reaction in neat water
作者:Yan Liu、Xiaowei Ma、Jianwei Xie、Ping Liu、Bin Dai、Ren He
DOI:10.1002/aoc.3021
日期:2013.8
Metallomicelles of palladium(II) complex 4 are found to be an efficientcatalyst for Suzuki–Miyaura reactions of aryl bromides substituted with a long alkyl chain and arylboronic acids at 80 °C in neat water. The reactions proceed smoothly to generate the corresponding biaryl compounds in moderate to excellent yields. Various biphenyl derivatives were successfully obtained by complex 4 catalysis of the Suzuki–Miyaura
Efficient synthesis of fluorinated biphenyl derivatives via Pd-catalyzed Suzuki coupling reactions in aqueous solvents at room temperature
作者:Mengping Guo、Fangfang Jian、Ren He
DOI:10.1016/j.jfluchem.2005.09.003
日期:2006.2
A variety of fluorinated biphenyl derivatives were obtained in good yields in aqueous solvents at room temperature by Suzuki couplingreaction of aryl bromides and aryl boronic acid in the presence of high activity catalyst—some air-stable hemilabile PO coordinated cyclopalladated complexes. The structures of above catalysts were characterized by element analyses, IR, 1H NMR, 13C NMR and 31P NMR.
在高活性催化剂的存在下,通过芳烃溴化物和芳基硼酸的Suzuki偶联反应,在室温下在水性溶剂中以高收率获得了多种氟化联苯衍生物。一些空气稳定的半不稳定的PO配位的环钯配合物。通过元素分析,IR,1 H NMR,13 C NMR和31 P NMR表征上述催化剂的结构。
LIQUID CRYSTAL COMPOUND AND LIQUID CRYSTAL COMPOSITION EMPLOYING THE SAME
申请人:DAXIN MATERIALS CORPORATION
公开号:US20160222295A1
公开(公告)日:2016-08-04
A liquid crystal compound and a composition employing the same are provided. The liquid crystal compound has a structure represented by Formula (I)
wherein R1, A1, A2, A3, A4, Z1, Z2, Z3, Z4, X, m, n, o, and p are defined as in the description.