反应详情

A solution of 3-(3-chloro-4-methoxyphenyl)-6-methoxyisoquinolin-1-ol (1.2 g, 3.80 mmol) in POCl3 (5.31 ml, 57.0 mmol) was refluxed for 4 h. The reaction mixture was concentrated. The residue was dissolved in DCM and the pH was adjusted to 7 with 4N NaOH. The organic phase was collected and dried over sodium sulfate, filtered, then concentrated under vacuum to give 1-chloro-3-(3-chloro-4-methoxyphenyl)-6-methoxyisoquinoline (1.2 g, 95% yield). δ ppm 1H NMR (400 MHz, CHLOROFORM-d) δ 8.22 (d, J=9.3 Hz, 1H), 8.15 (d, J=2.3 Hz, 1H), 8.02 (dd, J=8.7, 2.4 Hz, 1H), 7.27-7.24 (m, 1H), 7.13 (d, J=2.5 Hz, 1H), 7.05 (d, J=8.5 Hz, 1H), 3.99 (s, 6H); MS: MS m/z 334.1 (M++1).

1. concentrationThe reaction mixture was concentrated
2. dissolutionThe residue was dissolved in DCM
3. customThe organic phase was collected
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated under vacuum