2-Chlorobenzaldehyde → HCID 135907942, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-chlorobenzaldehyde (0.0430 g, 306 mmol), 2-amino-4,6-dimethoxybenzamide (0.0600 g, 0.306 mmol), NaHSO3 (94%, 0.0474 g, 0.428 mmol), and p-TsOH.H2O (0.0175 g, 0.0918 mmol) in DMA (3.06 mL) was heated at 140° C. for 16 h. The mixture was cooled and chromatographed on silica gel, fractions containing the product were combined, concentrated under vacuum, diluted with EtOAc (300 mL), washed with water (3×75 mL), brine (75 mL), dried over sodium sulfate, filtered and concentrated under vacuum to provide 2-(2-chlorophenyl)-5,7-dimethoxyquinazolin-4(3H)-one (0.0377 g, 39%) as a yellow solid. Selected data: 1H NMR (300 MHz, DMSO-d6) δ 12.14 (s, 1H), 7.65-7.40 (m, 4H), 6.72 (d, J=2.29 Hz, 1H), 6.59 (d, J=2.30 Hz, 1H), 3.87 (s, 3H), 3.85 (s, 3H); MS (APCI) m/z 317 [M+H]+.

Provenance & Evidence