Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 738, Issue -, Pages 41-48Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2013.04.013
Keywords
Carbon nanotube; Heterogeneous; Recyclable; Terpyridine copper complex; Tetrazole
Categories
Funding
- Shiraz University Research Council
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5-Substituted-1H-tetrazoles can conveniently be synthesized from the corresponding nitriles by reaction with NaN3 using the efficient and recyclable heterogeneous catalyst prepared by immobilization of copper(II) complex of 4'-phenyl-2,2':6',2 ''-terpyridine on activated multi-walled carbon nanotubes [AMWCNTs-O-Cu(II)-PhTPY]. Excellent results were obtained in each case affording the corresponding tetrazole adducts in good to excellent yields. In general, aromatic nitriles with electron-donating group could be accomplished as well as that with electron-withdrawing groups. By leaving out nitrile from the reaction and adding CH(OEt)(3) and amines bearing various substituents, 1-substituted-1H-tetrazoles formed in water in high yields. The reported protocols have the advantages of rapid assembly of a host of heterocyclic systems in high yields with the added advantage of recycling and reuse of the catalyst. (C) 2013 Elsevier B. V. All rights reserved.
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