1-(3,5-Dibromo-4-hydroxyphenyl)-1-propanone
- русский язык имя
- английское имя1-(3,5-Dibromo-4-hydroxyphenyl)-1-propanone
- CAS №2887-65-2
- CBNumberCB25828977
- ФормулаC9H8Br2O2
- мольный вес307.97
- файл Mol2887-65-2.mol
химическое свойство
| Температура плавления | 130°C |
| Температура кипения | 1.693 °C(Press: 20 Torr) |
| плотность | 1.830±0.06 g/cm3(Predicted) |
| пка | 5.86±0.36(Predicted) |
1-(3,5-Dibromo-4-hydroxyphenyl)-1-propanone химические свойства, назначение, производство
Подготовка
Preparation by treatment of p-hydroxypropiophenone with brominein 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 запасные части и сырье
сырьё