One-pot preparation of derivatives of the unknown fluoreno[2,3,4-i,j]isoquinoline ring from conjugated ketenimines by a consecutive electrocyclic ring-closure/Claisen rearrangement/intramolecular Diels–Alder cycloaddition/double aromatization process
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 11,p. 829-831
- https://doi.org/10.1039/c39900000829
Abstract
A short synthesis of fluoreno[2,3,4-i,j]isoquinoline derivatives (8) based on a new method of three consecutive annelations which involves thermal cyclization of conjugated ketenimines is described; the crystal structure of (8) has been determined.Keywords
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