Ethyl Acetate → 6-Bromo-3,5-dimethylbenzo[d]isoxazole
反応式
C(O[N:5]=[C:6]([C:8]1[CH:13]=[C:12]([CH3:14])[C:11]([Br:15])=[CH:10][C:9]=1[OH:16])[CH3:7])(=O)C.CC(=O)OCC>C(Cl)Cl.CCCCCC>[Br:15][C:11]1[C:12]([CH3:14])=[CH:13][C:8]2[C:6]([CH3:7])=[N:5][O:16][C:9]=2[CH:10]=1参加物
5
実験手順
Neat 2-(4-bromo-2-hydroxy-5-methylphenyl)-1-azaprop-1-enyl acetate (103) (0.5 g, 1.748 mmol) was heated at 175° C. for 2 h then at 100° C. for 1 h. After cooling down to r.t., the dark brown solid was dissolved in DCM and subjected to silica gel flash chromatography (0-40% B, A: hexane; B: 50% EA in hexane) to give 6-bromo-3,5-dimethylbenz[d]isoxazole (104) (92 mg, yield: 23.3%; purity>95%) as yellow crystals.
出典と根拠
- ORDレコード
- ord-7f1af18b03a247869196105a11bfd64e
- 出典データセット
- uspto-grants-2013_10
- 特許番号
- US08546403B2
反応ノート
読み込み中…