CSIR NET
Nivedha Asked a Question
August 23, 2020 8:45 pmpts 30 pts
  • CSIR NET
  • Chemical Sciences

Order of rate of reaction of following compound with phenyl magnesium bromide is: ph-c ph me-c-h me c-me o o o (1) (ii) (iii) ov (b) ii> i>i (a) i> i1>ii (c) ii

Order of rate of reaction of following compound with phenyl magnesium bromide is: Ph-C Ph Me-C-H Me C-Me O O O (1) (II) (III) ov (b) II> I>I (a) I> I1>II (c) III >1 >II (d) II>1>III H TLL
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  • Priyanshu kumar Best Answer
    option B is correct
    • cropped3148100845887799554.jpg
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    Priyanshu kumar
    Due to less steric crowding the nucleophile attack is easier in IInd compound
  • Dinesh khalmaniya thankyou
    Explanation- we know that carbonyl compounds give nucleophilic addition reaction because C=O bond is polara so C gets partial positive and O gets partial negative charge.
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    Dinesh khalmaniya
    due to partial positive charge on Carbonyl Carbon it gives nucleophilic addition reaction that means nucleophile attack on carbonyl carbon
  • Dinesh khalmaniya
    option B
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    Nivedha
    can you please provide me with an explanation, sir?
  • Narayanarao gundoju
    Due to resonance effect option b
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    Narayanarao gundoju
    due to resonance and hyperconjugation inductive effect
  • Narayanarao gundoju
    more ph more resonance and less electrophilic nature of carbonyl
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  • Narayanarao gundoju
    the effect order is A>R>H>I
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