反应详情

A solution of 4-(2-methoxyphenyl)piperidine (Fluka, 5 g, 26.1 mmol) in 48% hydrobromic acid (45 mL) was heated to 100° C. for 3 days. The mixture was then allowed to cool down to rt and it was concentrated under reduced pressure to give 2-(piperidin-4-yl)phenol as a light pink solid which was used directly in the next step. M+H=178.1.

1. concentrationit was concentrated under reduced pressure