A heterogeneous-catalyst-based, microwave-assisted protocol for the synthesis of 2,2'-bipyridines.
Chem Asian J
; 3(6): 1046-9, 2008 Jun 02.
Article
em En
| MEDLINE
| ID: mdl-18383055
A new method of preparing 2,2'-bipyridines with short reaction times by using microwave assistance and heterogeneous catalysts has been developed. With a Negishi-like protocol, it was found that Ni/Al(2)O(3)-SiO(2) afforded 2,2'-bipyridine products in up to 86% yield in 1 h. Palladium supported on alumina also provided yields of 2,2'-bipyridines comparable to those seen for homogeneous PEPPSI (1,3-diisopropylimidazol-2-ylidene)(3-chloropyridyl)palladium(II)dichloride) and tetrakis(triphenylphosphanyl)palladium complexes.
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1
Base de dados:
MEDLINE
Assunto principal:
2,2'-Dipiridil
/
Micro-Ondas
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article