1-(3,5-Dibromo-4-hydroxyphenyl)-1-propanone 化学特性,用途語,生産方法
製造方法
Preparation by treatment of p-hydroxypropiophenone with bromine
in dilute acetic acid, at r.t. for 5 h (80%) (63%) or in ? an acetic acid and sodium acetate mixture
in dilute ethanol or in methanol
in acetone (97%)
Preparation by treatment of 3-bromo-4-hydroxypropiophenone with bromine in acetone (97%)
Also obtained by demethylation of 3,5-dibromo-4-methoxypropiophenone (m.p. 59°) (m.p. 99°) with pyridinium chloride at reflux for 10 min.
1-(3,5-Dibromo-4-hydroxyphenyl)-1-propanone 上流と下流の製品情報
原材料
準備製品