223787-80-2Relevant academic research and scientific papers
A novel acylative ring cleavage of benzothieno[3,2-b]pyran-4-ols: Application to the synthesis of dibenzothiophenes and fused-ring derivatives
Gabbutt, Christopher D.,Hepworth, John D.,Heron, B. Mark,Thomas, Jean-Luc
, p. 541 - 542 (2007/10/03)
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.
