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| 3-Bromopropionic acid Basic information |
| 3-Bromopropionic acid Chemical Properties |
| 3-Bromopropionic acid Usage And Synthesis |
Chemical Properties | white to pale yellow or orange crystalline. soluble in water, alcohol, ether, chloroform, benzene. Hydrolysis in alkaline solution generates hydroxypropionic acid. Corrosive. for organic synthesis. | Uses | 3-Bromopropionic acid used as quaternization agent in amperometric biosensors. | Application | 3-Bromopropionic acid is a widely used chemical intermediate. It can be used as a starting material to synthesize derivatives such as esters, acid halides and amides; the active group bromine can undergo a series of reactions, and is mainly used in the fields of pesticides and medicines. Such as the pesticides diflufenacil, furalax and so on. | Preparation | 3-Bromopropionic acid is prepared by reacting acrylonitrile with hydrogen bromide to obtain bromopropionitrile and then hydrolyzing it. Add acrylonitrile to boiling hydrobromic acid, reflux at 130°C for 6 hours, extract the solid obtained by filtration with ethanol, and obtain the crude product after recovering ethanol by distillation under reduced pressure. By heating 2-cyanoethanol and 40% hydrobromic acid to reflux for 2h, 3-bromopropionic acid can also be produced with a yield of over 80%. | Synthesis Reference(s) | Journal of the American Chemical Society, 71, p. 2807, 1949 DOI: 10.1021/ja01176a061 Organic Syntheses, Coll. Vol. 1, p. 131, 1941 | Safety Profile | Moderately toxic by
intraperitoneal route. Questionable
carcinogen with experimental tumorigenic
data. Mutation data reported. When heated
to decomposition it emits toxic fumes of
Br-. See also BROMIDES. | Purification Methods | The acid crystallises as plates from CCl4. It is soluble in organic solvents and H2O. Its methyl ester has b 65o/18mm and 80o/27mm. The S-benzylisothiouronium salt has m 136o. [Kendall & McKenzie Org Synth Coll Vol I 131 1941, Beilstein 2 IV 764.] |
| 3-Bromopropionic acid Preparation Products And Raw materials |
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