2,4-Dichloroquinazoline CAS 607-68-1
- CasNo：607-68-1
- Molecular Formula：C8H4Cl2N2
- Purity：99%
- Molecular Weight：
Product Details
2,4-Dichloroquinazoline CAS 607-68-1
Description
2-Bromo-1-phenyl-1-pentanone is a white crystalline powder, a derivative of valerone. Can be used as pharmaceutical intermediates.
Resolve resolution
At room temperature, add 16.2g (0.1mol) of phenylpentanone and 30.9g (0.3mol) of sodium bromide into a 500mL round-bottomed flask. After stirring evenly, add 24g (0.2mol) of 30% hydrochloric acid and drip slowly.
Add 19g (0.15mol) 30% hydrogen peroxide. After the dropping, continue the reaction for 1~2h. After the reaction is monitored by TLC, stop stirring, stand still for layering, wash with saturated sodium carbonate and saturated brine, and combine the organic phases. After concentration, it is dried over anhydrous magnesium sulfate to obtain 2-bromo-1-phenyl-1-pentanone, a bright yellow oily liquid, with a yield of 95% and a purity of 98% (HPLC method).
Necessary First-aid Measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
