128405-86-7Relevant academic research and scientific papers
Preparation and Diels-Alder Reactivity of Benzothieno- and Benzothienopyran-3-ones, Benzothiophene-2,3-quinodimethane Analogues; Synthesis of Dibenzothiophenes
Jackson, P. Mark,Moody, Christopher J.
, p. 681 - 687 (2007/10/02)
The benzothienopyran-3-ones (6) and the isomeric pyranones (7) are stable analogues of benzothiophene-2,3-quinodimethane (3).When heated with alkynes they undergo Diels-Alder reactions to give, after loss of carbon dioxide, dibenzothiophenes.The regiochemistry of the Diels-Alder reaction is discussed.
