A novel acylative ring cleavage of benzothieno[3,2-b]pyran-4-ols: Application to the synthesis of dibenzothiophenes and fused-ring derivatives

Christopher D. Gabbutt, John D. Hepworth, B. Mark Heron, Jean Luc Thomas

Research output: Contribution to journalArticle

5 Citations (Scopus)


The benzothienopyranols 3, readily available from the ketone 1, are transformed to the carbamates 5 on treatment with N,N-dimethylcarbamoyl chloride, subsequent thermal electrocyclisation provides access to dibenzothiophene derivatives 6 and 11-13.

Original languageEnglish
Pages (from-to)541-542
Number of pages2
JournalChemical Communications
Issue number6
Publication statusPublished - 21 Mar 1999
Externally publishedYes


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