aziridinyllithiums having several alkyl groups were investigated. As an extension of this method, a synthesis of α,α-dialkylamino acid esters, including an optically active form, and amides was realized via the aziridinyllithiums. N-Non substituted α,α-dialkylamino acid esters were synthesized starting from N-(4-methoxyphenyl) aldimine.
在低温下,亚砜与
叔丁基锂的亚砜-
锂交换反应是由亚磺酰基
氮丙啶生成的iri丙啶基
锂。发现所生成的
氮丙啶基
锂在低于-30°C的THF中稳定,并且它们可与多种亲电试剂反应,如羰基化合物,
氯甲酸乙酯和
异氰酸苯酯。研究了具有几个烷基的
叠氮基
锂的反应性。作为该方法的扩展,通过
叠氮基
锂实现了包括旋光形式的α,α-二烷基
氨基酸酯和酰胺的合成。N-非取代的α,α-二烷基
氨基酸酯是从N-(4-
甲氧基苯基)醛
亚胺开始合成的。