反应详情

2,3-Dicyano-5-chloro-6-phenylpyrazine (12.03 g; 0.05 mole) and 7.07 g (0.11 mole) of a 70% aqueous solution of ethylamine were worked up in the same way as in Example 13, and recrystallized from toluene to afford 10.98 g (yield 88%) of 2,3-dicyano-5-ethylamino-6-phenylpyrazine.

1. customrecrystallized from toluene