Dihydro[c]benzazepin-3-ones via conjugated nitrone-allene precursors

Authors
Knobloch, K Eberbach, W
Citation
K. Knobloch et W. Eberbach, Dihydro[c]benzazepin-3-ones via conjugated nitrone-allene precursors, ORG LETT, 2(8), 2000, pp. 1117-1120
Citations number
32
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
8
Year of publication
2000
Pages
1117 - 1120
Database
ISI
SICI code
1523-7060(20000420)2:8<1117:DVCNP>2.0.ZU;2-1
Abstract
Treatment of co-propargylaryl nitrones with base provided 1,2 dihydro[c]ben zazepin-3-ones in good yields. The straightforward transformation is explai ned on the basis of a multistep rearrangement involving conjugated allene-n itrones as precursors of a 1,7 dipolar electrocyclization process that is f ollowed by further bond reorganizations.