Chinese name: beta-bromo-phenylethane
English name: (2-Bromoethyl)benzene
CAS: 103-63-9
EINECS number: 203-130-8
Molecular formula: C8H9Br
MDL number: MFCD00000240
Molecular weight: 185.06
Appearance: Colorless liquid. The melting point is -56℃, the boiling point is 220-221℃, 217-218℃ (97.62kPa), 92℃ (1.46kPa), the relative density is 1.3589, the refractive index is 1.5572. Can be miscible with ethyl ether and benzene, insoluble in water. Flash point 89 ° C.
Melting point: -56 °C
Boiling point: 220-221 °C(lit.)
Density: 1.355 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.556(lit.)
Flash point: 193 °F
Storage conditions: 2-8°C
Solubility: Solubility in water is 0.039 g/l
Form: Liquid
Color: transparent colorless to light yellow
Water solubility: INSOLUBLE
BRN: 507487
Stability: Stable. Incompatible with strong oxidants.
InChIKey: WMPPDTMATNBGJN-UHFFFAOYSA-N
Use 1
Used as an intermediate in medicine and pesticides
Preparation method
Method one
It is produced by the reaction of phenyl ethanol with hydrogen bromide. The phenylethanol is heated to 110℃, and the hydrogen bromide is slowly introduced and the reflux reaction is carried out. At the end of the reaction, cool, wash with water, 10% sodium carbonate solution, and water in turn. After drying with anhydrous potassium carbonate, vacuum fractionation was performed and 97-99℃ (2.0kPa) fractions were collected. The yield was over 90%.