I don't consider myself a Chemist but I've been trying to studying   
   Grignard reactions in order to add to a carbonyl group(CH3) in place   
   of a ketone(=O) using methylmagnesium bromide. The common solvent for   
   this reaction is pyridine and I've also read that sometimes a mixture   
   of acetone and pyridine is used. Using acetone surprised me since I   
   thought that acetone is a ketone and may interfere with the reaction?   
   Anyway perhaps acetone doesn't interfere so I'm wondering if just   
   acetone could be used or does pyridine have a special role? Any   
   Chemists out there with enlightenment?   
   Brock   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)