A convenient and transition-metal free protocol for quinazolinones synthesis with o-aminobenzamides and benzyl amines as substrates has been developed. Using H_2O_2 as the oxidant, various quinazolinones were obtained in moderate to good yields under metal- and additive-free conditions. A convenient and transition-metal free protocol for quinazolinones synthesis with o-aminobenzamides and benzyl amines as substrates has been developed. Using H_2O_2 as the oxidant, various quinazolinones were obtained in moderate to good yields under metal- and additive-free conditions.