Rearrangement of dithianylcyclobutachromanol derivatives to 1,2,2a,8,9,9a-hexahydrocyclobuta[b][1]benzoxepin-8,9-dione

Ranu, Brindaban C. ; Bhar, Sanjay ; Patra, Amarendra ; Nayak, Nirmalya P. ; Mukherjee, Monika (1996) Rearrangement of dithianylcyclobutachromanol derivatives to 1,2,2a,8,9,9a-hexahydrocyclobuta[b][1]benzoxepin-8,9-dione Chemical Communications (16). pp. 1965-1966. ISSN 1359-7345

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Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/1996...

Related URL: http://dx.doi.org/10.1039/CC9960001965

Abstract

A novel rearrangement of dithianylcyclobutachromanol derivative 3a on treatment with mercuric oxide and fluoroboric acid in aqueous tetrahydrofuran leads to 1,2,2a,8,9,9a-hexahydro-2a,9a-dimethylcyclobuta[b]-[1]benzoxepin-8,9-dione whose structure is established by X-ray analysis.

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