A-溴代-3,5-二氯苯乙酮

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3.7 g (0.015 mol) of 1-(3,5-dichlorophenyl)-2-methylthio-1-ethanone are prepared by addition at 0° C. of 1.23 g (0.017 mol) of sodium methanethiolate in solution in 10 ml of methanol to 4.28 g (0.016 mol) of 2-bromo-1-(3,5-dichlorophenyl)-1-ethanone obtained above. obtained above

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 1.03 ml (0.02 mol) of bromine are added, at room temperature, to 3.77 g (0.019 mol) of (3,5-dichlorophenyl)ethanone in solution in 50 ml of acetic acid. After stirring for 12 hours, evaporation of the acetic acid leads to the production of a yellow precipitate: 2-bromo-1-(3,5-dichlorophenyl)-1-ethanone (yield 81%). evaporation of the acetic acid leads to the production of a yellow precipitate