Lithium N-Lithiomethyldithiocarbamates: New N-Alkylaminomethyl Anion Equivalents A new method for nucleophilic aminomethylation is described. It consists in the in situ conversion of a secondary methylamine to the lithium N-lithiomethyldithiocarbamate, subsequent reaction with one equivalent of an electrophile, and deprotection in a one-pot procedure to give the secondary amine substituted at the methyl group. By reaction with two equivalents of an alkyl iodide, alkyl N,N-dialkyldithiocarbamates, even mixed ones, are available too.
锂N-
锂基甲基二
硫代
氨基甲酸盐:新的N-烷基
氨基甲基阴离子等价物
描述了一种新的亲核
氨基甲基化方法。该方法包括将次级甲基胺原位转化为
锂N-
锂基甲基二
硫代
氨基甲酸盐,随后与一种电离子反应,并在一步法中去保护,以得到在甲基基团上取代的次级胺。通过与两个当量的烷基
碘化物反应,也可以获得烷基N,N-二烷基二
硫代
氨基甲酸盐,甚至是混合的。