Phosphorus oxychloride → HCID 86683185, compound

Participants

Reaction Steps

A solution of 7-fluoro-3-(4-isopropoxyphenyl)-6-methoxyisoquinolin-1-ol (1.8 g, 5.50 mmol) in POCl3 (7.69 ml, 82 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. The crude material was purified by silica gel chromatography using 50% DCM in hexanes. The product fractions were collected and the solvent removed under vacuum to give 1-chloro-7-fluoro-3-(4-isopropoxyphenyl)-6-methoxyisoquinoline (1.8 g, 95% yield). MS: MS m/z 346.1 (M++1).

Provenance & Evidence