An efficient, practical and enviro-friendly method of prepara- tion of 2-nitroimino-1 ,3-diazacycloalkanes 3a-d has been reponed by a simple reaction between nitroguanidine 1 and diamines 2a-d in the presence of eonc. HCI in aq. medium with very good yields. ... 2-Nitroimino-I,3-diazacyclo alkanes are important compounds in the synthesis of medicinal compounds,' pesticides,2 insecticides,3 and nematicides.4 Further, 2- nitroimino-l,3-diazacycloalkanes is a very ...
