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Australian Journal of Chemistry Australian Journal of Chemistry Society
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RESEARCH ARTICLE

Studies in the Tricyclooctane Series. III. Dehydrobromination of Some Bis-bromocarbene Adducts of Cyclohexadienes

MG Banwell and B Halton

Australian Journal of Chemistry 32(12) 2689 - 2699
Published: 1979

Abstract

Treatment of 4,4,8,8-tetrabromo-cis-transoid-cis-tracyclo[5,1,0,03,5]octane (If) with potassium t-butoxide leads to mixtures of the (E)- and (Z)-isomers of 4- and 3-bronlo-β-t-butoxystyrene (5e,f) and (9e,f) respectively, whereas the 4,4,endo-8-tribromo analogue (1g) affords the parent styrenes (5c,d). On the other hand the tetra- and tri-bromo-cis-transoid-cis-tricyclo[5,1,0,02,4] octanes (8f-h)give complex and unresolved product mixtures. Evidence is presented which eliminates the involvement of halogenocyclooctatetraenes and p-halogenophenylacetylenes in these reactions.

https://doi.org/10.1071/CH9792689

© CSIRO 1979

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