To find out the modification method for removing the cyanogens group of ricinine,the basic quantum chemistry parameter of ricinine was calculated and the bond energy of the molecule was analyzed.Under the condition of microwave power 600 W at 150℃ for 4.5 h with added concentrated hydrochloric acid solution,the cyanogens group was successfully removed from ricinine molecule.The decrease in insecticidal effect of ricinine after modification indicated that the cyanogens group played an important role in insecticidal effect of ricinine.
