Ethyl Acetate → 2-Chloro-6-(3-fluorophenoxy)pyrazine

反応式

Cl[C:2]1[CH:7]=[N:6][CH:5]=[C:4]([Cl:8])[N:3]=1.[F:9][C:10]1[CH:11]=[C:12]([OH:16])[CH:13]=[CH:14][CH:15]=1.CCOC(C)=O>C1CCCCC1>[Cl:8][C:4]1[CH:5]=[N:6][CH:7]=[C:2]([O:16][C:12]2[CH:13]=[CH:14][CH:15]=[C:10]([F:9])[CH:11]=2)[N:3]=1

参加物

実験手順

Using Method DD with 2,6-dichloropyrazine (250 mg, 1.69 mmol) and 3-fluorophenol (166 μL, 1.86 mmol, d=1.25 g/mL), and purification by column chromatography (AcOEt:cyclohexane, 1:1), the title compound was obtained (347 mg). Yield: 92%. 1H NMR (250 MHz, DMSO-d6) δ 7.13-7.17 (m, 2H, Harom 4+6), 7.25 (d, 1H, Harom 2, JF=10.0 Hz), 7.52 (q, 1H, Harom 5, J=8.1 Hz), 8.54 (s, 1H, HPz 5), 8.56 (s, 1H, HPz 3). m/z: 224.0 [(M)+, calcd for C10H6ClFN2O 224.0].