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Synthesis 2006(20): 3527-3530
DOI: 10.1055/s-2006-942532
DOI: 10.1055/s-2006-942532
PSP
© Georg Thieme Verlag Stuttgart · New York
The Synthesis of Bicyclo[2.2.2]octan-2,6-dione Revisited
Further Information
Received
26 April 2006
Publication Date:
02 August 2006 (online)
Publication History
Publication Date:
02 August 2006 (online)

Abstract
The cyclisation conditions for the formation of bicyclo[2.2.2]octan-2,6-dione (1) from 3-substituted cyclohexanones 2 and 3 have been re-investigated. Use of a medium consisting of isobutyric anhydride and trifluoroacetic acid resulted in a simplified and reproducible method for large-scale synthesis of this compound.
Key words
bicyclic compounds - cyclisations - diketones - carboxylic acids - anhydrides
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