Iodine → 2-(4-hydroxy-3,5-dimethylphenyl)-5,7-dimethoxyquinazolin-4(3H)-one

Participants

Reaction Conditions

Reaction Steps

2-Amino-4,6-dimethoxy-benzamide (1.06 g, 5.4 mmol), 3,5-dimethyl-4-hydroxybenzaldehyde (0.810 g, 5.4 mmol), K2CO3 (0.747 g, 5.4 mmol) and I2 (1.645 g, 6.5 mmol) were mixed in DMF (20 mL) and the reaction mixture was heated at 80° C. for 12 h. It was cooled to room temperature and poured into crushed ice. The solid was collected and purified by column chromatography to give 2-(4-hydroxy-3,5-dimethylphenyl)-5,7-dimethoxyquinazolin-4(3H)-one (0.9 g, 51%) as a white solid. Selected data: MP 291-293° C.

Provenance & Evidence