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Rate of solvolysis of allyl and alkyl halides

Chemistry Asked on January 14, 2021

Suppose I have 2 compounds, 3-chloropropene and 1-bromo-1-methylcyclohexane. Without knowing the values, how can we compare the rate of solvolysis?

My attempt: Resonance is quite dominant character thus alkyl chloride resonance I think should dominate over hyperconjugation but then we have an exception that 3 degree carbocation is more stable than benzyl carbocation hence there might be some disparity in orders.

One Answer

Resonance effect is more stronger than hyperconjugation irrespective of the number of αH. In first case allylic carbocation is formed which is stabilised by resonance. So solvolysis rate is more for the first compound

Answered by user95529 on January 14, 2021

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