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  • Title: Functionalized oxepines via fragmentation of highly strained epoxides.
    Author: Leyhane AJ, Snapper ML.
    Journal: Org Lett; 2006 Nov 09; 8(23):5183-6. PubMed ID: 17078673.
    Abstract:
    [Structure: see text] Epoxidation of highly strained cyclobutenes followed by thermal rearrangement provides a new entry into oxepine-containing bicyclo[5.3.0] ring systems. In contrast to the rearrangement of the corresponding cyclopropanated systems, the strained epoxides in this study are believed to fragment through two competing pathways leading to a mixture of diastereomeric 5-7 ring systems.
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