Pyridine → 1-(Bromomethyl)-2-methoxy-3-nitrobenzene
反応式
[CH3:1][O:2][C:3]1[C:8]([N+:9]([O-:11])=[O:10])=[CH:7][CH:6]=[CH:5][C:4]=1[CH2:12]O.N1C=CC=CC=1.P(Br)(Br)[Br:21]>ClCCl>[Br:21][CH2:12][C:4]1[CH:5]=[CH:6][CH:7]=[C:8]([N+:9]([O-:11])=[O:10])[C:3]=1[O:2][CH3:1]参加物
5
実験手順
A solution of 14.7 g of (2-methoxy-3-nitro-phenyl)-methanol dissolved in 140 ml of dichloromethane and 5.5 ml of pyridine was cooled in an ice bath and slowly added 6.48 ml of phosphorus tribromide. After 45 minutes at 5° C., the reaction mixture was diluted with dichloromethane, washed with water, dried, and evaporated to dryness. The residue was purified by flash chromatography on silica gel eluting with ethyl acetate/hexane (5:95) giving 7.3 g of 1-bromomethyl-2-methoxy-3-nitrobenzene as a yellow solid. ##STR137##
後処理
- washwashed with water
- customdried
- customevaporated to dryness
- customThe residue was purified by flash chromatography on silica gel eluting with ethyl acetate/hexane (5:95)
出典と根拠
- ORDレコード
- ord-8c50ffb64fc943a28a3b698344fe465e
- 出典データセット
- uspto-grants-1999_09
- 特許番号
- US05952362
反応ノート
読み込み中…