期刊
TETRAHEDRON
卷 66, 期 13, 页码 2301-2305出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2010.02.011
关键词
Suzuki reaction; Chloroarenes; Molecular sieves; Palladium(II) chloride; Chemoselectivity
资金
- DST, Govt. of India, New Delhi [SR/S2/JCB-11/2008]
Palladium(II) chloride supported on 4 A molecular sieves efficiently catalyzes the Suzuki coupling reactions of chlorobenzenes in presence of tetrabutylammonium bromide without any ligand. The useful intermediates for the synthesis of bioactive compounds such as irbesartan, and losartan have been prepared in one step following this reaction. The preparation of this catalyst is very simple. The FE-SEM image shows a cube shape ordered structure. The catalyst does not exhibit any nanoparticles as indicated by TEM. EDS and XPS demonstrate anchoring of Pd on molecular sieves in +2 oxidation state. This heterogeneous catalyst is stable, non-air sensitive and recyclable. (C) 2010 Elsevier Ltd. All rights reserved.
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