文献类型：期刊文献

英文题名：Application of Suzuki cross-coupling reaction catalyzed by ligandless palladium chloride in the synthesis of liquid crystals

作者：Huang, Mei[1]; Cheng, Jianhua[1]; Tao, Xiaochun[2]; Wei, Mingwang[1]; Shen, Dong[1,3]

机构：[1]E China Univ Sci & Technol, Chem Phys Lab, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Lab Organomet Chem, Shanghai 200237, Peoples R China

年份：2007

卷号：37

期号：13

起止页码：2203

外文期刊名：SYNTHETIC COMMUNICATIONS

收录：;EI(收录号：20242616542959);WOS:【SCI-EXPANDED(收录号:WOS:000248145700013)，CCR-EXPANDED(收录号:WOS:000248145700013)】；

语种：英文

外文关键词：ligandless palladium catalysis; trans-cyclohexyl biphenyl liquid crystals; Suzuki cross-coupling

摘要：Palladium chloride - catalyzed Suzuki cross-coupling reaction was applied to the preparation of highly pure multiring liquid crystals with a biphenyl unit. The optimal reaction condition is the combination of 0.5 mol% PdCl2, pyridine, and K3PO4, which was able to catalyze the cross-coupling of substituted aryl bromides with substituted trans-cyclohexylphenylboronic acids to give pure products in 38-87% yields.