The electrophilic amination of nitrogen-based nucleophiles, including strong organic bases, was conducted in an Et2O solvent using O-(mesitylenesulfonyl)hydroxylamine. Aliphatic tert-amines and N,N,N′-(trialkyl)amidines rapidly formed precipitates of the corresponding aminated salts in high yields. The amination of the highly basic and sterically hindered N,N,N′,N′,N″-(pentaalkyl)guanidines was achieved
                                    使用O- (
均三甲苯磺酰基)
羟胺在 Et 2 O 溶剂中进行基于氮的亲核试剂(包括强有机碱)的亲电胺化。脂肪族叔胺和N , N , N '-(三烷基)脒以高收率迅速形成相应胺化盐的沉淀物。高碱性和空间位阻的N , N , N ', N ', N ”-(五烷基)
胍的胺化是在改进的条件下实现的,尽管由于酸碱平衡引起的竞争性副反应,产率适中. 全尺寸图像