Unexpected 1,2,3-triazole formation in the reaction of diethylaluminum azide with α′-amino-α,β-unsaturated ketones
作者:Ilaria Adamo、Fabio Benedetti、Federico Berti、Giorgio Nardin、Stefano Norbedo
DOI:10.1016/j.tetlet.2003.10.051
日期:2003.12
β-unsaturated ketones by [3+2] cycloaddition of azide, followed by 1,5 hydride transfer to the β carbon of the triazoline side chain and fragmentation of the tertiary amino group promoted by coordination of the latter to the Lewis acid. The structure of a triazole product is confirmed by X-ray crystallography.
通过叠氮化物的[3 + 2]环加成反应,由叠氮化二乙基铝和α'-(N,N-二苄氨基)-α,β-不饱和酮形成4-酰基-1 H -1,2,3-三唑。,5氢化物转移到三唑啉侧链的β碳上,并且通过叔氨基与路易斯酸的配位促进了叔氨基的断裂。三唑产物的结构通过X射线晶体学确认。