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Journal of the Brazilian Chemical Society

Print version ISSN 0103-5053On-line version ISSN 1678-4790

Abstract

BAKHERAD, Mohammad; KEIVANLOO, Ali; BAHRAMIAN, Bahram  and  KAMALI, Taghi A.. Synthesis of novel 6-(substituted benzyl)imidazo[2,1-b][1,3]thiazole catalyzed by polystyrene-supported palladium(ii) ethylenediamine complex. J. Braz. Chem. Soc. [online]. 2009, vol.20, n.5, pp.907-912. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532009000500015.

O complexo etilenodiamina paládio(II) suportado em polímero, [PS-en-Pd(II)], é um catalisador altamente ativo, usado para a reação de acoplamento de Sonogashira entre um iodeto de arila e brometo de 2-amino-3-(2-propinila)1,3-tiazólio, 3. Esse catalisador heterogêneo de paládio é eficiente, estável e reciclável. A reação do composto 3 com vários iodetos de arila, 4a-f, na presença do complexo [PS-en-Pd(II)] leva à produção dos 6-(benzil)imidazo[2,1-b][1,3]tiazóis, 5a-f.

Keywords : Sonogashira coupling; heterogeneous catalyst; aryl iodides; imidazothiazoles.

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