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Homework Help: Grignard Reagent Solvent

  1. Oct 9, 2008 #1
    1. The problem statement, all variables and given/known data
    Why is THF used as a solvent while preparing an alkyl magnesium bromide instead of diethyl ether?

    2. Relevant equations

    3. The attempt at a solution

    THF and diethyl ether being polar solvents are able to co-ordinate to the magnesium. May be it is because THF, which is more polar than diethyl ether is able to co-ordinate when diethyl ether fails to do so that efficiently. Wiki says THF substitutes diethyl ether when a higher boiling solvent is required. Can anybody elaborate it for me?
  2. jcsd
  3. Oct 9, 2008 #2


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    Wiki is correct. Diethyl ether boils at around room temperature while THF boils much higher. Rate of reaction is directly related to temperature.
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