KOSSMEHL, G.;FROHBERG, H. -CH., CHEM. BER., 1986, 119, N 1, 50-64
作者:KOSSMEHL, G.、FROHBERG, H. -CH.
DOI:——
日期:——
Synthesis of 2-Trifluoroacetonyl-3-alkyl/alkoxychromones and Their Reactions with 1,2-Bidentate Nucleophiles
作者:Mykhaylo S. Frasinyuk、Iryna M. Biletska、Galyna P. Mrug、Yaroslav O. Prostota、Kostyantyn M. Kondratyuk、Svitlana P. Bondarenko
DOI:10.3987/com-22-14659
日期:——
3-substituted 2-methyl/2-benzyl/2-(2-phenethyl)chromones with trifluoroacetic anhydride in presence of potassium trifluoroacetate was investigated. It was established that the nature of substituent in position 3 of chromone ring has no crucial influence/limitation on this reaction, whereas only in the case of 2-benzyl substituent (in addition to 2-sec-alkyl group) no reaction was occurred at all. Reaction of