The azomethine ylide arising from the cleavage of dimethyl 1,3-diphenylaziridine-2,2-dicarboxylate adds preferentially to the CO bond of ketens to give 5-methyleneoxazolidines with two ester groups on C(4).
由1,3-二苯基
氮丙啶-2,2-二
羧酸二甲酯裂解产生的偶氮甲碱内酯优先添加到酮的C O键上,得到在C(4)上带有两个酯基的5-亚甲基
恶唑烷。