Intramolecular cyclisation of phenolic oximes. Part II. Cyclisations with brominating agents
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 22,p. 2348-2353
- https://doi.org/10.1039/p19750002348
Abstract
Intramolecular cyclisation of p-hydroxyarylpropan-2-one oximes to 2,5-dienonespiroisoxazolines can be achieved by using bromine, N-bromosuccinimide, or tetrabromocyclohexa-2,5-dienone. With an analogous ortho-phenolic oxime only the last of these was effective, the structure of the 2,4-dienonespiroisoxazoline formed being confirmed by an independent synthesis.Keywords
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