Hydrazine hydrate (1:1) → (5,7-Difluoroquinolin-6-yl)methanamine

Participants

Reaction Steps

To a solution of 2-(5,7-difluoroquinolin-6-ylmethyl)isoindoline-1,3-dione (5.10 g, 15.73 mmol) in CH3OH (150 mL) was added hydrazine monohydrate (0.50 g, 15.73 mmol). The solution was heated at reflux for 3 h. After cooling, the mixture was filtered through celite. The filtrate was concentrated in vacuo. EtOAc was added to dilute the residue, filtered and concentrated in vacuo to afford (5,7-difluoroquinolin-6-yl)methanamine (2.70 g, 88%). 1H-NMR (400 MHz, CDCl3) δ ppm 8.93 (d, 1H), 8.38 (d, 1H), 7.59 (d, 1H), 7.43 (m, 1H), 4.12 (s, 2H). LCMS (method B): [MH]+=195.0, tR=0.17 min.

Provenance & Evidence