1,4-Dibromobutane

CAS: 110-52-1
Molecular Formula: C4H8Br2
Molecular Weight: 215.9143
Product description:Colorless or light yellow liquid. Melting point 16.53 ℃ (20 ℃), the boiling point of 197-198 ℃ (1.46 kPa), 76 ℃ (1.47 kPa), relative density 1.7890 (20/4 ℃), the refractive index of 1.5190, flash point 54 ℃. Soluble in chloroform, alcohol and ether, insoluble in water.By tetrahydrofuran via ring opening, bromide. Add hydrobromic acid reaction pot, stir in drip and tetrahydrofuran, again add sulfuric acid, temperature control under 50 ℃. Then heat up to 108 ℃ or so back 4 h, after the reaction continues to stir 1 h, put cold divide the lower liquid, washing to neutral, with soda solution and anhydrous calcium chloride, filtering to finished products.Organic synthesis intermediates, used in the manufacture of aminophylline and cough will clean Nao, flooding, etc. Used in the manufacture of aminophylline and cough will clean Nao, flooding, etc.