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- W2005178332 endingPage "346" @default.
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- W2005178332 abstract "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." @default.
- W2005178332 created "2016-06-24" @default.
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- W2005178332 date "2011-01-01" @default.
- W2005178332 modified "2023-10-11" @default.
- W2005178332 title "Reactions between Grignard reagents and heterocyclic N-oxides: Stereoselective synthesis of substituted pyridines, piperidines, and piperazines" @default.
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- W2005178332 doi "https://doi.org/10.1039/c0ob00336k" @default.
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