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Synfacts 2006(10): 1070-1070
DOI: 10.1055/s-2006-949291
DOI: 10.1055/s-2006-949291
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York
Sulfur-Terminated GaAs-Supported Pd Catalyst for the Heck Reaction
M. Arisawa*, M. Hamada, I. Takamiya, M. Shimoda, S. Tsukamoto, Y. Arakawa, A. Nishida*
Chiba University, National Institute for Materials Science, Ibaraki and the University of Tokyo, Japan
Further Information
Publication History
Publication Date:
21 September 2006 (online)
Significance
A sulfur-terminated gallium arsenide(001) supported palladium complex was prepared and used as a catalyst in the Heck reaction. The reaction of gallium arsenide(001) with ammonium sulfide gave sulfur-terminated gallium arsenide(001), and the treatment of the resulting sulfur-terminated gallium arsenide with palladium acetate gave the GaAs-S-supported palladium complex 1 (eq. 1). The Heck reaction of a variety of aryl iodides with α,β-unsaturated carbonyl compounds took place in the presence of the palladium complex 1 to give the Heck coupling products in 76-100% yield (eq. 2). Catalyst 1 was reused nine times without significant loss of catalytic activity (average 97% yield).