164031-41-8Relevant articles and documents
Flavonoids, 45 . A General and Efficient Synthesis of Hydroxyflavones and -chromones
Patonay, Tamas,Molnar, Denes,Muranyi, Zoltan
, p. 233 - 242 (2007/10/02)
An efficient and versatile method for the synthesis of flavones hydroxylated in either ring A or B and of chromones hydroxylated in is described.This approach is based on the acidic resin-promoted cyclodehydration and simultaneous deprotection of methoxymethoxylated 1-(2-hydroxyphenyl)propane-1,3-diones easily available by either the Baker-Venkataraman rearrangement or the Claisen condensation. - Key words: Amberlyst 15 / Baker-Venkataraman rearrangement / Claisen condensation / hydroxychromone / hydroxyflavone / methoxymethyl protection