By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) ...By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) or (IV) in high yields.展开更多
文摘By the addition reaction of the schiff base of ehylenediamine with diethyl phosphite, his-a-aminophosphonate (II) wereobtained, Which were cyclized with triphosgene or oxalyl chloride giving the title compounds (ill) or (IV) in high yields.