Ammonia → 1,2-Dihydroquinazolin-2-one

Participants

Reaction Conditions

Reaction Steps

Anthranilic acid ED.5 (1.00 g, 4.27 mmol) is placed in 2-methoxyethanol (2.0 mL), combined with formamidine acetate (890 mg, 8.55 mmol) and heated to 125° C. for 20 h. The reaction mixture is added to aqueous NH3 (200 mL, 0.01 M), the precipitate is filtered off, dried and quinazolone Z.8 (817 mg, 79%) is obtained.

Provenance & Evidence