Volume 27, Issue 23
Heterocyclic Compounds
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ChemInform Abstract: Sterically Crowded Heterocycles. Part 3. A General Approach to Imidazo( 1,2-a)pyridines by Ferricyanide Oxidation of Quaternary Pyridinium Salts.

R. KUBIK

R. KUBIK

Dep. Org. Chem., Prague Inst. Chem. Technol., CZ-166 28 Prague 6, Czech Rep.

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S. BOEHM

S. BOEHM

Dep. Org. Chem., Prague Inst. Chem. Technol., CZ-166 28 Prague 6, Czech Rep.

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I. RUPPERTOVA

I. RUPPERTOVA

Dep. Org. Chem., Prague Inst. Chem. Technol., CZ-166 28 Prague 6, Czech Rep.

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J. KUTHAN

J. KUTHAN

Dep. Org. Chem., Prague Inst. Chem. Technol., CZ-166 28 Prague 6, Czech Rep.

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First published: June 4, 1996

Abstract

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ChemInform Abstract

The ferricyanide oxidation of the pyridinium salts (III) provides mixtures of major imidazopyridines (IV) and minor isomeric pyrroles (V) while the derivatives (VIII) give exclusively the corresponding imidazopyridine (IX).

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