A simple procedure for the synthesis of N,N,N′-trialkyl-1,8-diaminonaphthalenes is described. It consists in partial demethylation (dealkylation) of commercially available proton sponge [1,8-bis(dimethylamino)naphthalene] and some of its derivatives at heating with HBr–KI–DMF system. Limitation, scope and a possible mechanistic pathway for the reaction are discussed. For isomeric 8-dimethylamino-1-methylamino-
描述了合成N,N,N'-三烷基-
1,8-二氨基萘的简单程序。它包括用HBr – KI –
DMF系统加热时,可商购的质子海绵[1,8-双(二甲基
氨基)
萘]及其一些衍
生物的部分脱甲基(脱烷基)反应的局限性,范围和可能的反应机理。讨论。对于异构体8-二甲基
氨基-1-甲基
氨基-和1-二甲基
氨基-8-甲基
氨基-4-
硝基萘,已经进行了X射线测量。报道了在
萘质子海绵中完全实现反应的第一个例子。