Shifana posted an Question
July 28, 2020 • 14:48 pm 30 points
  • IIT JAM
  • Chemistry (CY)

What does it mean by exo and edo in this molecule?

what does it mean by exo and endo in this molecule?...............................

2 Answer(s) Answer Now
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    Dinesh khalmaniya 1 best-answer

    EXO approach = approach from the side of the SMALLER carbon bridge ENDO approach = approach from the side of the LARGER carbon bridge

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    got it??

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    so in the reactn i mentiond the attack will be from exo position?

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    yes, here exo position is less hindered so attack towards exo side

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    because of two Hs given in this pick, endo side is more crowded as compared to exo. so exo attack

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    please accept the answer if you got it 🙏🙏

  • Suman Kumar

    Exo & endo is just orientation in 3D.

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    See this

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    Here exo & endo is with respect to R

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    In exo R will face 3 membered rind. But in endo it will face four memberd ring

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    Now in your question exo product is major as it is facing 3 membered ring so it is more stable as it will have less steric

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    Did you get Shifana

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    please accept my answer if you got it

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