Reaction of spironaphthalenones with hydroxylamine: Part I. A reinvestigation of the mechanism
作者:Tirumalai R. Kasturi、Srirangam K. Jayaram、Palle V.P. Pragnacharyulu、Jitendra A. Sattigeri、Gowravaram M. Reddy、Kaipenchery A. Kumar
DOI:10.1016/s0040-4020(01)80511-1
日期:1993.1
Spironaphthalenones 1b–g on reaction with hydroxylamine hydrochloride gave the expected pyrrolotropones 2b–g. Furanotropone 6, postulated as an intermediate in the formation of pyrrolotropones, remained unchanged on reaction with hydroxylamine hydrochloride in ethanol. Reaction of unsymmetrical spironaphthalenones 1h–o with NH2OH.HCl gave the rearranged pyrrolotropones 2h–o.