Studies of the selective O-alkylation and dealkylation of flavonoids. XII. A new, convenient method for synthesizing 3, 5-dihydroxy-6, 7-dimethoxyflavones from 3, 5, 6, …

堀江徳愛， 河村保彦， 津嘉山正夫…

Index: Chemical and Pharmaceutical Bulletin, , vol. 37, # 5 p. 1216 - 1220

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Citation Number: 22

Abstract

... R3=H j R1=OCH2Ph,R2=OMe,R3=ll k R1=R2=0CH2Ph,R3=1—l Chart 1 © 1989 Pharmaceutical Society of ... spectra were recorded on a Hitachi R—24 spectrometer (60 MHz), using tetramethylsilane as an internal standard and chemical shifts were ... 3 mmol) of flavones 4 Vol. ...