Views: 0 Author: Site Editor Publish Time: 2022-12-09 Origin: Site
2-Bromo-1-phenyl-1-pentanone CAS: 49851-31-2 is a white or off-white crystal. It is used as an intermediate in the synthesis of medicines and pesticides and is used in the synthesis of 2-diazoacetoacetate-p-nitrobenzyl ester, etc.
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What is 2-Bromo-1-phenyl-1-pentanone CAS: 49851-31-2?
How is 2-Bromo-1-phenyl-1-pentanone CAS: 49851-31-2 formulated?
English name: o-Bromovalerophenone
English alias: 2-Bromo- 1-phenylpentan-1-one
CAS number: 49851-31-2
Molecular formula: C11H13BrO
Molecular weight: 241.12400
Appearance: 2-Bromo-1-phenyl-1-pentanone CAS: 49851-31-2 is usually a yellow liquid.
Boiling point: 282.267oC at 760 mmHg
Refractive index: 1.541
At room temperature, add 16.2 g (0.1 mol) valerophenone and 30.9 g (0.3 mol) sodium bromide to a 500 mL round-bottomed flask, stir well, then add 24 g (0.2 mol) 30% hydrochloric acid, slowly drop Add 19 g (0.15 mol) of 30% hydrogen peroxide, and continue to react for 1 to 2 h. After TLC monitoring is completed, stop stirring, let stand for stratification, and use saturated sodium carbonate and saturated brine respectively. After washing, the organic phases were combined, concentrated, and dried over anhydrous magnesium sulfate to obtain 2-Bromo-1-phenyl-1-pentanone CAS: 49851-31-2 as a bright yellow oily liquid with a yield of 95% and a purity of 98 % (HPLC method).
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