反应详情

1-(2-Chlorobenzoyl)-3-[5-(4-bromophenyl)-6-chloro-2-pyrazinyl]urea, weighing 1.4 g., and having a melting point of about 240°-242° C., from 0.9 g. of 2-amino-5-(4-bromophenyl)-6-chloropyrazine and 0.65 g. of 2-chlorobenzoylisocyanate.