112763-72-1Relevant academic research and scientific papers
Direct Lithiation of Chalcogenachromones, -flavones, and -pyranones. The Interconversion and Electrophilic Capture of Ring-Opened and Ring-Closed Anions
Detty, Michael R.,McGarry, Lynda W.
, p. 1203 - 1207 (2007/10/02)
The metalation of chalcogenapyranones, -chromones, and -flavones with lithium diisopropylamide generates 3-lithio derivatives which interconvert with their ring-opened anions.Through appropriate choices of electrophiles, both ring-opened and ring-closed p
NEW SYNTHESIS OF CHALCOGENOCHROMONES
Luxen, Andre J.,Christiaens, Leon E. E.,Renson, Marcel J.
, p. 81 - 86 (2007/10/02)
We describe a new synthesis of chalcogenochromones and of some of their oxygen, sulfur, selenium and tellurium derivatives.The synthesis involves acidic cyclisation of (o-alkylchalcogenophenyl) ethynyl ketones.
