Valence-bond isomers of heterocyclic compounds: isomers of pentakis(pentafluoroethyl)pyridine
作者:M. G. Barlow、J. G. Dingwall、R. N. Haszeldine
DOI:10.1039/c29700001580
日期:——
U.v. irradiation of pentakis(pentafluoroethyl)pyridine produces the corresponding 1-azabicyclo[2,2,0]hexa-2,5-diene, and hence the 1-azatetracyclo[2,2,0,02,603,5]hexane; these, the first valence-bond isomers of a six-membered-ring heterocycle to be isolated, are stable for several hours at 160°.
五(五氟乙基)吡啶的紫外辐射产生相应的1-氮杂双环[2,2,0]六-2,5-二烯,因此产生1-氮杂双环[2,2,0,0 2,6 0 3,5正己烷 这些是待分离的六元环杂环的第一个价键异构体,在160°下可稳定几个小时。