4-(Bromomethyl)-1-naphthaldehyde → 4-((1,3-Dioxoisoindolin-2-yl)methyl)-1-naphthaldehyde

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 4-(bromomethyl)-1-naphthaldehyde (7 g, 28 mmol) in DMF (100 mL) was added potassium phthalimide (7.3 g, 39.5 mmol), and the mixture was heated at 85° C. for 2 h. The reaction mixture was cooled to ambient temperature and diluted with H2O (100 mL). The obtained solid was separated by filtration and dried under vacuum to afford the title compound as a white solid (8.8 g, 98%): mp 190-192° C.; 1H NMR (400 MHz, CDCl3) δ 10.39 (s, 1H), 9.25 (m, 1H), 8.41 (m, 1H), 8.10 (d, J=8.0 Hz, 1H), 7.95 (m, 4H), 7.80 (m, 4H), 7.61 (m, 4H), 5.39 (s, 2H); ESIMS m/z 316.09 ([M+H]+); IR (thin film) 1708 cm−1.

Provenance & Evidence