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.
与盐酸羟胺反应时,螺萘二酮1b–g得到预期的吡咯烷酮2b–g。呋喃酮6被假定为吡咯烷酮形成的中间体,在乙醇中与盐酸羟胺反应时保持不变。非对称螺萘醌1h-o与NH 2 OH.HCl的反应产生了重排的吡咯烷酮2h-o。