NOTES
Experiment 11: Synthesis of 1-Phenylethanol: A Grignard Reaction


1. Work in pairs.
2. Two important points for a successful start of a Grignard reaction:
   a. A very dry apparatus, which is accomplished by a thorough 
      flaming-out process.
   b. A clean active surface of the magnesium metal.  
      We will try the following:
      - Thoroughly crush the magnesium metal in a mortar and pestel 
        before adding to the reaction flask.
      - If the reaction does not start, your TA will add a few drops of
        1,2-dibromoethane.  This compound reacts rapidly with Mg to form
        ethylene, and thus provides a clean surface for the reaction to
        start.
3. Keep a beaker with ice water in your hood to control the reaction if
   necessary.
4. Text reference:  Carey 5/e, Chapter 14, p. 595 - 598.