Reactions between Grignard reagents and heterocyclic N-oxides: stereoselective synthesis of substituted pyridines, piperidines, and piperazines
2011 (engelsk)Inngår i: Organic and biomolecular chemistry, ISSN 1477-0520, E-ISSN 1477-0539, Vol. 9, s. 337-346Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
In this perspective we discuss the recent developments of stereoselective synthesis of substituted pyridines, piperidines, and piperazines from cheap and commercially readily available starting materials. Pyridine N-oxides and pyrazine N-oxides are reacted with alkyl, aryl, alkynyl and vinyl Grignard reagents to give a diverse set of heterocycles in high yields. Optically active substituted piperazines are obtained by an asymmetric reaction from pyrazine N-oxides using sparteine as chiral ligand. In addition, a stereoselective synthesis of dienal-oximes from the reaction between pyridine N-oxides and Grignard reagents is presented, which results in a useful intermediate for the synthesis of a diverse set of compounds.
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2011. Vol. 9, s. 337-346
Identifikatorer
URN: urn:nbn:se:umu:diva-38054DOI: 10.1039/c0ob00336kPubMedID: 21076758Scopus ID: 2-s2.0-78650743607OAI: oai:DiVA.org:umu-38054DiVA, id: diva2:373360
2010-11-302010-11-232023-03-24bibliografisk kontrollert