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There are few examples of other allowed sigmatropic shifts involving six ten electron transition states, but these are not common reactions. A [3, 4] shift is observed in competition with a [1, 2] shift in cations derived from cyclohexane diols. This is a cationic equivalent of the Cope rearrangement,... [Pg.92]

See other pages where 1,2-Shift in cations is mentioned: [Pg.76]

See also in sourсe #XX -- [ Pg.90 , Pg.91 , Pg.267 , Pg.268 , Pg.353 , Pg.419 , Pg.432 ]