📜1-(2-Benzoyloxy-6-Methoxy-Phenyl)-Ethanone置于氢氧化钾,硫酸,溶剂黄146体系中,用 吡啶 作为反应溶剂,化学反应生成 5-甲氧基黄酮
参考文献:Epoxidation Of Flavones By Dimethyldioxirane
标题:Epoxidation Of Flavones By Dimethyldioxirane
摘要:The Synthesis Of Epoxides 2 By Epoxidation Of Flavones 1 With Isolated Dimethyldioxirane (As Acetone Solution) At Subambient Temperatures Is Reported. These Labile Epoxides Were Isolated And Completely Characterized By Uv,Ir,H-1 And C-13 NMR,Ms,And C,H Analyses. Warming To Room Temperature Led To Rearrangement To Afford Quantitatively The 3-Hydroxyflavones 3B,H,I,N. Treatment Of The Epoxides 2B,F With Methanol Led To The 3-Hydroxy-2-Methoxyflavanones 4B,F As A Mixture Of Cis And Trans Isomers.
DOI:10.1021/jo00026A020