Disclosed is an improved process for producing nitroisourea derivatives which is necessary for producing nitroguanidine derivatives having an insecticidal activity. Specifically disclosed is a process for producing nitroisourea derivatives represented by the following general formula (3), which is characterized in that nitroisourea derivatives represented by the following general formula (1) and amines represented by the following general formula (2) or a salt thereof are reacted in the presence of a catalytic amount of a hydrogen carbonate,
本发明公开了一种改进的生产硝基异
脲衍
生物的方法,该方法是生产具有杀虫活性的
硝基胍衍
生物所必需的。具体公开了一种生产由以下通式(3)表示的硝基异
脲衍
生物的方法,其特征在于在氢
碳酸盐的催化作用下,将由以下通式(1)表示的硝基异
脲衍
生物和由以下通式(2)表示的胺或其盐反应。