Neha posted an Question
August 19, 2020 • 23:19 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Find out the relative stability of following compounds.

1 Answer(s) Answer Now
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  • Suman Kumar

    stability order 3>2>1>4>5

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    structure 3 has resonance of 2 pi bond as well as hyperconjugation

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    structure 4 has hyperconjugation. But structure 5 has localised radical

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    Radical stability is treated same as carbocation stability. Keep this point in mind

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    How structure 4 has 4 alpha H Neha?

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    First of all it is unstable as it is located on sp2 hybridized carbon. So highly unstable but it is stabilized by hyperconjugation

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    please mark thankyou 🙏 Neha

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    Dinesh khalmaniya 1 best-answer

    iii>ii>i>iv>v

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    In case of iv)structure, there are 4 alpha hydrogen atoms right? So, I think this answer is not the right one.

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    no here only 2 alpha, because FR is not allylic position so no change position

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    got it?

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    any doubt?

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