One-Pot Synthesis of γ-Azidobutyronitriles and Their Intramolecular Cycloadditions
作者:Ekaterina M. Budynina、Konstantin L. Ivanov、Hamidulla B. Tukhtaev、Feruza O. Tukhtaeva、Stanislav I. Bezzubov、Mikhail Ya. Melnikov
DOI:10.1055/s-0040-1706402
日期:2020.11
was demonstrated by their transformation into tetrazoles via intramolecular (3+2)-cycloaddition. A condition-dependent activation effect of the α-substituent was revealed in that case. Thermally activated azide–nitrile interaction did not differentiate the presence of an α-electron-withdrawing substituent in γ-azidonitriles, whereas the Lewisacidmediated (SnCl4 or TiCl4) reaction proceeded much easier