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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 37, 2007 - Issue 13
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Original Articles

Application of Suzuki Cross‐Coupling Reaction Catalyzed by Ligandless Palladium Chloride in the Synthesis of Liquid Crystals

Mei Huang Laboratory of Chemical Physics, East China University of Science and Technology, Shanghai, China
,
Jianhua Cheng Laboratory of Chemical Physics, East China University of Science and Technology, Shanghai, China
,
Xiaochun Tao Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai, China
,
Mingwang Wei Laboratory of Chemical Physics, East China University of Science and Technology, Shanghai, China
&
Dong Shen Laboratory of Chemical Physics, East China University of Science and Technology, Shanghai, ChinaCorrespondence[email protected]
Pages 2203-2208 | Received 07 Dec 2006, Published online: 03 Jul 2007
 
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Abstract

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.

Acknowledgment

This work was supported by Ministry of Education, P. R. China.

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