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ChemInform Abstract: Diels-Alder Reactions of 5,6-Dihydro-2(1H)-pyridones. Preparation of Partially Reduced cis-Isoquinolones and cis-3,4-Disubstituted Piperidines.

✍ Scribed by N. CASAMITJANA; A. JORGE; C. G. PEREZ; J. BOSCH; E. ESPINOSA; E. MOLINS

Publisher: John Wiley and Sons
Year: 2010
Weight: 34 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199730141

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✦ Synopsis

Diels-Alder Reactions of 5,6-Dihydro-2(1H)-pyridones. Preparation of Partially Reduced cis-Isoquinolones and cis-3,4-Disubstituted Piperidines.

-Dihydropyridones (I) and (IV) undergo thermal or Lewis acid induced Diels-Alder reaction with various butadienes to give cisisoquinolone derivatives. cis-3,4-Disubstituted piperidines (XII) are obtained by reductive ozonolysis of the octahydroisoquinolones (XI). In addition, products resulting from Michael addition are formed with dienes (VII) under Lewis acid catalysis conditions. -(CASAMITJANA, N.;

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