Benzyl Alcohol → HCID 59394770、化合物

反応式

C(=O)([O-])[O-].[K+].[K+].[CH2:7]([OH:14])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.F[C:16]1[CH:21]=[CH:20][C:19]([N+:22]([O-:24])=[O:23])=[C:18]([CH3:25])[C:17]=1[F:26]>CCOC(C)=O>[CH2:7]([O:14][C:16]1[CH:21]=[CH:20][C:19]([N+:22]([O-:24])=[O:23])=[C:18]([CH3:25])[C:17]=1[F:26])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1

参加物

反応条件

温度: 180 °C

実験手順

To a suspension of potassium carbonate (19.2 g, 138 mmol) and benzyl alcohol (22 mL) is added 1,2-difluoro-3-methyl-4-nitrobenzene (12 g, 69 mmol, ref. WO2007121416) and the mixture is heated to 180° C. for 2 h. The reaction mixture is then diluted with EtOAc and washed with water. The organic layer is concentrated and the residue is separated with FCC (EtOAc/heptane from 0 to 20%) to give 1-benzyloxy-2-fluoro-3-methyl-4-nitrobenzene. 1H NMR (400 MHz, MeOD) δ ppm 7.87 (dd, J=9.35, 2.02 Hz, 1 H), 7.44-7.47 (m, 2 H), 7.32-7.41 (m, 3 H), 7.17 (t, J=8.72 Hz, 1 H), 5.26 (s, 2 H), 2.49 (d, J=2.78 Hz, 3 H).