4-Bromobenzaldehyde

CAS: 1122-91-4
Molecular Formula: C7H5OBr
Molecular Weight: 185.02
Product description:Colorless or light yellow leaf. Melting point 67 ℃, boiling point of 66-68 ℃ (0.27 kPa). Soluble in ethanol and benzene, insoluble in water.By the bromine toluene was obtained via the following: under the condition of light, add the bromine from under the liquid level drops to 105 ℃ of bromine in toluene, add the early temperature is 105-110 ℃. In the late temperature is 135 ℃. Slowly add after the temperature rise to 150 ℃, then add the calcium carbonate powder and stir water, heating reflux 15 min for hydrolysis. Again by steam distillation, the distillate liquid cooling, filter out crystallization of bromine benzaldehyde.Used in organic synthesis, pharmaceutical intermediates, etc