95161-88-9Relevant articles and documents
Dimethylsulfoxide-iodine catalysed deprotection of 2′- allyloxychalcones: Synthesis of flavones
Lokhande, Pradeep D.,Sakate, Sachin S.,Taksande, Kiran N.,Navghare, Beena
, p. 1573 - 1574 (2005)
A new one-pot method is described for the removal of O-allyl protecting groups under oxidative conditions at neutral pH. 2′-Allyloxychalcones undergo deprotection and subsequent oxidative cyclisation to give flavones. The general applicability of the reagent has been studied.
Iodine catalyzed cascade synthesis of flavone derivatives from 2'-allyloxy-α,β-dibromochalcones
Nawghare, Beena R.,Gaikwad, Sunil V.,Raheem, Abdul,Lokhande, Pradeep D.
, p. 2284 - 2286 (2014/07/22)
Synthesis of flavones from 2'-allyloxy-α, β-dibromochalcones has been described. The iodine induced oxidative cyclization of 2'-allyloxy-α, β-dibromochalcones results into the formation of 3-bromoflavanones which ultimately gives flavones. Dehydrobromination of 3-bromoflavanone to give flavone is the preferred reaction over dehydrogenation.
