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Cationicπ-cyclisation ofα,β-unsaturated carbonyl compounds

Authors
Journal
Tetrahedron
0040-4020
Publisher
Elsevier
Publication Date
Volume
37
Identifiers
DOI: 10.1016/0040-4020(81)85061-2

Abstract

Abstract Several olefinic α,β-unsaturated carbonyl compounds have been cyclized by Lewis acid and the structures of the products determined. In only one case a spirocyclisation with concomitant 1,3-hydride-shift has been observed besides intramolecular cycloaddition. In the other cases there was either no reaction or a 6-endo-trig cyclisation with further rearrangement took place.

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