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Werner Fiala

University of Graz

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Publication

Featured researches published by Werner Fiala.

Journal Fur Praktische Chemie-chemiker-zeitung | 2000

Thermal Cyclization of 3‐Acyl‐4‐azidopyridines to Isoxazolo[4,3‐c]pyridines

Wolfgang Stadlbauer; Werner Fiala; Michaela Fischer; Gerhard Hojas

4-Azidopyridines such as 3-acetyl-4-azido-2-pyridones 3 or 4-azido-3-ethoxycarbonylpyridine 7 with reactive ortho-acyl substituents were obtained from the 4-hydroxy-2-pyridones 1, resp. 5via 4-tosyloxy-2-pyridones 2 or the 2,4-dichloropyridine 6. DSC-assisted thermolysis of the azides 3 and 7 resulted in electrocyclization and elimination of nitrogen to the isoxazolo[4,3-c]pyridines 4 and 8.

Journal of Heterocyclic Chemistry | 1992

Nucleophilic substitution and ring closure reactions of 4-chloro-3-nitro-2-quinolones†

Peter Roschger; Werner Fiala; Wolfgang Stadlbauer

Journal of Heterocyclic Chemistry | 1994

Synthesis of oxazolo[4,5‐c]quinolones by thermolytic degradation of 4‐azido‐2(1H)‐quinolones

Waltraud Steinschifter; Werner Fiala; Wolfgang Stadlbauer

Journal of Heterocyclic Chemistry | 1998

Ring closure and rearrangement reactions of 4-azido-2-oxoquinoline-3-carboxylates and 4-azidocoumarin-3-carboxylates†‡

Wolfgang Stadlbauer; Susanne Prattes; Werner Fiala

Journal Fur Praktische Chemie-chemiker-zeitung | 1993

Nucleophilic Chlorination of 3-Formyl-4-hydroxy-quinolin-2(1H)-ones

Werner Fiala; Wolfgang Stadlbauer

Journal of Heterocyclic Chemistry | 2000

Heteroelectrocyclic reaction of 4-azido-3-hydrazonoalkyl-quinolines to 2-arylaminopyrazolo[4,3-c]quinolones†

Gerhard Hojas; Werner Fiala; Wolfgang Stadlbauer

Journal of Heterocyclic Chemistry | 2000

Thermal cyclization of 4-azido-3-nitropyridines to furoxanes†

Wolfgang Stadlbauer; Werner Fiala; Michaela Fischer; Gerhard Hojas

ChemInform | 2010

Organic Azides in Heterocyclic Synthesis. Part 23. Ring Closure and Rearrangement Reactions of 4-Azido-2-oxoquinoline-3-carboxylates and 4-Azidocoumarin-3-carboxylates.

Wolfgang Stadlbauer; Susanne Prattes; Werner Fiala

ChemInform | 2010

Organic Azides in Heterocyclic Synthesis. Part 27. Heteroelectrocyclic Reaction of 4-Azido-3-hydrazonoalkylquinolines to 2-Arylaminopyrazolo[4,3-c]quinolones.

Gerhard Hojas; Werner Fiala; Wolfgang Stadlbauer

ChemInform | 2001

Organic Azides in Heterocyclic Synthesis. Part 26. Thermal Cyclization of 4-Azido-3-nitropyridines to Furoxanes.

Wolfgang Stadlbauer; Werner Fiala; Michaela Fischer; Gerhard Hojas

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Wolfgang Stadlbauer

University of Graz

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Gerhard Hojas

University of Graz

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Michaela Fischer

University of Graz

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Peter Roschger

University of Graz

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Susanne Prattes

University of Graz

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Waltraud Steinschifter

University of Graz

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