NITTA MAKOTO; KANOMATA NOBUHIRO, CHEM. LETT.,(1986) N 11, 1925-1928
作者:NITTA MAKOTO、 KANOMATA NOBUHIRO
DOI:——
日期:——
The Synthesis and Properties of 3-Arylcyclohepta[<i>d</i>]isoxazolylium Ions
作者:Makoto Nitta、Nobuhiro Kanomata
DOI:10.1246/cl.1986.1925
日期:1986.11.5
3-Arylcyclohepta[d]isoxazolylium tetrafluoroborates were synthesized by the cycloaddition of tricarbonyl(2-5-η-2,4,6-cycloheptatrienone)iron with aromatic nitrile oxides followed by several reactions. The pKR+ values of these ions are less than +1.0 showing that the stability of the tropylium ions is much decreased by the fusion of the isoxazole ring.