132526-00-2Relevant articles and documents
Preparation and Diels-Alder Reactivity of Thieneo- and Thienopyran-3-ones, Stable 2,3-Dimethylenethiophene Derivatives; Synthesis of Benzothiophenes
Jackson, P. Mark,Moody, Christopher J.,Shah, Pritom
, p. 2909 - 2918 (2007/10/02)
The thienopyran-3-ones (7) and the isomeric pyranones, e.g. (26) are stable derivatives of 2,3-dimethylenethiophene (3).When heated with alkynes they undergo Diels-Alder reaction to give, after loss of carbon dioxide, benzothiophenes.With un