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Synthesis 1997; 1997(5): 521-523
DOI: 10.1055/s-1997-1227
short paper
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Silica-Supported Poly-γ-Mercaptopropylsiloxane Palladium(0) Complex: A Highly Active and Stereoselective Catalyst for Arylation of Styrene and Acrylic Acid

Ming-Zhong Cai1 , Cai-Sheng Song2 , Xian Huang1
  • 1Department of Chemistry, Hangzhou University, Hangzhou 310028, P.R. China
  • 2Department of Chemistry, Jiangxi Normal University, Nanchang 330027, P.R. China
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Publication History

Publication Date:
31 December 2000 (online)

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A silica-supported poly-γ-mercaptopropylsiloxane palladium(0) complex was prepared from poly-γ-mercaptopropylsiloxane and palladium chloride in acetone, followed by reduction with hydrazine in ethanol. The complex is a highly active and stereoselective catalyst for arylation of styrene and acrylic acid affording a variety of trans-stilbenes and substituted trans-cinnamic acids in high yields.

polymeric palladium catalyst - sulfur-containing polysiloxane - Heck arylation - trans-stilbenes - trans-cinnamic acids