Imazamox is a kind of Imidazolinone herbicides utilised in soybean field, which is developed and manufactured in American Cyanamid Company. In this paper, 1-amino-1,2-ethylenedicarboxylic acid esters was obtained from the reactants of diethyl maleate and hydroxylamine hydrochloride via addition and dehydration. The above product was reacted with methoxymethacrolein to produce 5-(methoxymethyl)-2,3-pyridinedicarboxylate; Methoxymethacrolein was synthesized from acrolein, methanol and formaldehyde. The interm...