Q1 / 200 · Manipal (MET) 2014 · Chemistry

Which of the following compounds will not react with Mg metal in the presence of ether to give a Grignard reagent?

  • A
    $\mathrm{CH}_2=\mathrm{CHBr}$
  • B
    $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}$
  • Correct answer
    C
    $\mathrm{CH}_2 \mathrm{OHCH}_2 \mathrm{Br}$
  • D
    $\mathrm{CH}_3 \mathrm{OCH}_2 \mathrm{CH}_3 \mathrm{I}$

Solution

Compounds containing acidic hydrogen cannot be used in Grignard's synthesis and the compound $\mathrm{CH}_2 \mathrm{OHCH}_2 \mathrm{Br}$ contains acidic hydrogen.

Hence, the correct answer is option: 'C'.

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