Literature DB >> 18383055

A heterogeneous-catalyst-based, microwave-assisted protocol for the synthesis of 2,2'-bipyridines.

Lucas R Moore1, David A Vicic.   

Abstract

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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Year:  2008        PMID： 18383055      PMCID： PMC2875932          DOI： 10.1002/asia.200700391

Source DB:  PubMed          Journal:  Chem Asian J        ISSN： 1861-471X


  13 in total

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5.  A solution to the 2-pyridyl organometallic cross-coupling problem: regioselective catalytic direct arylation of pyridine N-oxides.

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6.  New polyfunctional magnesium reagents for organic synthesis

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7.  Bipyridine: the most widely used ligand. A review of molecules comprising at least two 2,2'-bipyridine units.

Authors:  C Kaes; A Katz; M W Hosseini
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Authors:  Kelnner W R de França; Jadson de Lira Oliveira; Tupolevck Florêncio; Aderivaldo P da Silva; Marcelo Navarro; Eric Léonel; Jean-Yves Nédélec
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9.  Electrochemical homocoupling of 2-bromomethylpyridines catalyzed by nickel complexes.

Authors:  Kelnner W R de França; Marcelo Navarro; Eric Léonel; Muriel Durandetti; Jean-Yves Nédélec
Journal:  J Org Chem       Date:  2002-03-22       Impact factor: 4.354

10.  Palladium-catalyzed tetrakis(dimethylamino)ethylene-promoted reductive coupling of aryl halides.

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Journal:  J Org Chem       Date:  2003-05-16       Impact factor: 4.354
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  1 in total

1.  Microwave assisted Suzuki-Miyaura and Ullmann type homocoupling reactions of 2- and 3-halopyridines using a Pd(OAc)2/benzimidazolium salt and base catalyst system.

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  1 in total

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