details of these examples are not to be taken as limitations upon the invention a to flask equipped with stirrer condenser and thermometer are charged 97 0 g 0 5 mole of ethyl 3 ethoxy 3 iminopropionate hydrochloride 51 5 g 0 3 mole of 2 chloro 5 nitroaniline and 500 ml of anhydrous methanol these ingredients are stirred at room temperature overnight and the methanol is distilled off at atmospheric pressure while heating the reaction mixture up to a temperature of 105 u00b0 c the resultant salt 21 4 g is filtered and the filter cake is washed well with methanol to the filtrate is added 500 ml of methanol and 58 5 g of 0 3 mole of 2 4 6 trichlorophenylhydrazine and this reaction mixture is refluxed overnight and the refluxed reaction mixture cooled to 10 u00b0 15 u00b0 c and filtered yielding 76 6 g 53 of theory of a yellow solid which is recrystallized from acetonitrile to yield the above identified product having a melting point of 121 u00b0 124 u00b0 c whose structure is confirmed by infra red and nmr spectroscopy anal calculated for c 17 h 14 cl 4 n 4 o 4 c 42 52 h 2 94 cl 29 53 n 11 67 b to a 5 l flask equipped with stirrer condenser and thermometer are charged 730 g of ethyl.