N-bromobutanimide → Ethyl 2-bromomethyl-3,4-dichlorobenzoate
反応式
[Cl:1][C:2]1[C:3]([CH3:14])=[C:4]([CH:10]=[CH:11][C:12]=1[Cl:13])[C:5]([O:7][CH2:8][CH3:9])=[O:6].[Br:15]N1C(=O)CCC1=O>C(Cl)(Cl)(Cl)Cl>[Br:15][CH2:14][C:3]1[C:2]([Cl:1])=[C:12]([Cl:13])[CH:11]=[CH:10][C:4]=1[C:5]([O:7][CH2:8][CH3:9])=[O:6]参加物
4
実験手順
A mixture of ethyl 3,4-dichloro-2-methylbenzoate (34.0 g), N-bromosuccinimide (30.0 g) and carbon tetrachloride was irradiated with u.v. light in a photochemical reactor for 3 hours. The cooled mixture was filtered and the filtrate washed with water, dried (magnesium sulphate) and evaporated to give ethyl 2-bromomethyl-3,4-dichlorobenzoate (51.0 g) as an oil, NMR (CDCl3) 1.45 (t,3H), 4.4 (q,2H), 5.15 (s,2H), 7.7 (m,2H).
後処理
- customwas irradiated with u.v
- filtrationThe cooled mixture was filtered
- washthe filtrate washed with water
- dry with materialdried (magnesium sulphate)
- customevaporated
出典と根拠
- ORDレコード
- ord-22b70368b67a437b86e0a225731c07ce
- 出典データセット
- uspto-grants-1994_12
- 特許番号
- US05374606
反応ノート
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