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Synfacts 2011(3): 0337-0337
DOI: 10.1055/s-0030-1259462
DOI: 10.1055/s-0030-1259462
Polymer-Supported Synthesis
© Georg Thieme Verlag
Stuttgart ˙ New York
Self-Supported NHC-Palladium Catalyst for the Strecker Synthesis
Contributor(s):Yasuhiro Uozumi, Yoichi M. A. YamadaJ. Choi, H. Y. Yang, H. J. Kim, S. U. Son*
Sungkyunkwan University, Suwon and Korea Basic Science Institute, Daejeon, South Korea
Organometallic Hollow Spheres Bearing Bis(N-Heterocyclic Carbene)-Palladium Species: Catalytic Application in Three-Component Strecker Reactions
Angew. Chem. Int. Ed. 2010, 49: 7718-7722
Sungkyunkwan University, Suwon and Korea Basic Science Institute, Daejeon, South Korea
Organometallic Hollow Spheres Bearing Bis(N-Heterocyclic Carbene)-Palladium Species: Catalytic Application in Three-Component Strecker Reactions
Angew. Chem. Int. Ed. 2010, 49: 7718-7722
Further Information
Publication History
Publication Date:
16 February 2011 (online)
Key words
organometallic hollow spheres - Strecker reaction - ketones - palladium
Significance
The organometallic hollow sphere (OMHS) catalyst was prepared by self-supporting of Pd(OAc)2 and tetrahedral 1 having four imidazolium salts. The Strecker reaction of aryl methyl ketones 2 with OMHS gave the corresponding α-aminonitriles 3 in 3-91% yield.
Comment
The average diameter of OMHS was 1.50±0.15 µm. OMHS was reused twice without loss of catalytic activity. The catalyst was characterized with SEM, TEM, EDS, TGA, elementary analysis, and solid-phase ¹³C NMR spectroscopy.