Additions of carbenium ions to nonconjugated dienes. The retarding (−I)-effect of the second double bond.

Kinetics for the addition of the p-methoxybenzhydryl cation (AnPhCH+, 10) towards nonconjugated dienes 11 [H2C=C(CH3)-(CH2)n-C(CH3)=CH2] have been determined in CH2Cl2 at −30° to −70°C. Reactivity increases with increasing number of methylene groups separating the two double bonds. For N = 4, reactivity reaches the value for saturated alkyl substituents, and nucleophilic assistance of the second double bond is never observed.

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Additions of carbenium ions to nonconjugated dienes. The retarding (−I)-effect of the second double bond. is an episode from Chemie und Pharmazie - Open Access LMU - Teil 01/02 by Ludwig-Maximilians-Universität München.

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This episode was published on Jan 1, 1991.

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