First tandem nucleophilic addition–electrophilic amination reaction of Eschenmoser’s salts: synthesis of cyclic and spiro-fused hydrazonium salts
作者:Jarosław Sączewski、Maria Gdaniec
DOI:10.1016/j.tetlet.2007.08.127
日期:2007.10
A series of cyclic and spiro-fused hydrazonium salts was prepared by tandem nucleophilic addition–electrophilic amination reactions. The method presented makes use of Eschenmoser’s salt or benzotriazole aminals and 2-hydroxylamino-4,5-dihydroimidazolium-O-sulfonate. The products structures were determined by X-ray analysis.