Pyridine → 1-(Bromomethyl)-2-methoxy-3-nitrobenzene
반응식
[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]참가 물질
5
실험 절차
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##
후처리
- washwashed with water
- customdried
- customevaporated to dryness
- customThe residue was purified by flash chromatography on silica gel eluting with ethyl acetate/hexane (5:95)
출처 및 근거
- ORD 기록
- ord-8c50ffb64fc943a28a3b698344fe465e
- 출처 데이터셋
- uspto-grants-1999_09
- 특허 번호
- US05952362
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