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1,4-Dihomotropylium cation

The 9-barbaralyl cation 83a is stable only at or below -135 °C, and on warming to -125 °C it is irreversibly converted into 1,4-dihomotropylium cation 85 (equation 54). The... [Pg.843]

Paquette et al. prepared the dihomotropone 58 and concluded from its IR, UV, and NMR spectra that there was no evidence for the homoaromatic charge-separated species 59. Again, upon protonation, the dihomotropylium cation 60 was not detected. Acid treatment of the alcohol 61 from reduction of 58 gave facile Wagner—Meerwein rearrangement and no indication of the desired dihomotropylium cation 62. [Pg.8]

See other pages where 1,4-Dihomotropylium cation is mentioned: [Pg.843]    [Pg.843]    [Pg.843]    [Pg.843]   
See also in sourсe #XX -- [ Pg.843 ]

See also in sourсe #XX -- [ Pg.843 ]



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