反応 #65279

反応方程式

methyl 2,3-dichloro-4-methylbenzoate

N-bromosuccinimide

carbon tetrachloride

→

material

収率 99.0%

methyl 4-bromomethyl-2,3-dichlorobenzoate

収率 99.0%

溶媒

pentane

反応条件

後処理

1. 1
   その他while being irradiated with a 150 watt flood lamp for 2.5 hours
2. 2
   その他Concentration of the filtered reaction mixture under vacuum

実験手順

A mixture of 40 g (0.183 mol) of methyl 2,3-dichloro-4-methylbenzoate, 34.17 g (0.192 mol) of N-bromosuccinimide, 0.4 g (0.0017 mol) of benzoylperoxide, and 640 mL of carbon tetrachloride was stirred at room temperature while being irradiated with a 150 watt flood lamp for 2.5 hours. Concentration of the filtered reaction mixture under vacuum gave 54 g of material which on trituration with pentane followed by storage of the slurry at 5° C. for 18 hours gave 34.6 g (63.5%) of product; mp 57°-61° C.

出典