p-Toluenesulfonic acid monohydrate → HCID 136038033, compound

Participants

Reaction Steps

2-Amino-4,6-dimethoxy-benzamide (150 mg, 0.764 mmol), 2-(4-formyl-phenoxy)-acetamide (137 mg, 0.764 mmol), sodium hydrogen sulfite (150 mg, 58.5%) and p-toluenesulfonic acid monohydrate (15 mg) in N,N-dimethyl acetamide (15 mL) were heated to 150° C. overnight. N,N-dimethyl acetamide was removed under vacuum and the residue was poured into water (50 mL). The solid was filtered off and washed with methanol to yield 2-(4-(5,7-dimethoxy-4-oxo-3,4-dihydroquinazolin-2-yl)phenoxy)acetamide (74 mg, 27.2%). Selected data: MS (m/z): 356.09; MP 309-311° C. HPLC purity: 88.57%.

Provenance & Evidence