alchemy_bee
(Hive Bee)
04-25-02 07:46
No 301255
      Grignard side products  Bookmark   

After Hydrolysis of the grignard reagent eg with dilute HCl What are the side products? Im currious to understand what happends to the NMgCl complex.

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Can a bee be visa vis its entity when half a bee philosophically must ipso facto half not be?
 
 
 
 
    Rhodium
(Chief Bee)
04-25-02 10:26
No 301301
      Mechanism  Bookmark   

The =NMgCl complex reacts with HCl to give MgCl2 and the imine =NH, and the imine is then hydrolyzed by H2O/HCl to give the ketone =O and NH4Cl.
 
 
 
 
    alchemy_bee
(Hive Bee)
04-25-02 17:23
No 301411
      grignard reactions  Bookmark   

Whow thats great Rhodium, its easy to see how water is detramental to NaBH3 reductions of P2Ps.

Can you explain the attraction/reaction of the nitrogen in the methyl cyanide to the grignard set (MgCl)?


To any bees interested in grignard reactions http://www.chem.ucalgary.ca/courses/351/Carey/Ch14/ch14-3-1.html is a good read.





Can a bee be visa vis its entity when half a bee philosophically must ipso facto half not be?
 
 
 
 
    Rhodium
(Chief Bee)
04-26-02 04:12
No 301603
      RMgX + RCN  Bookmark   

One of the resonance forms of a nitrile is R-C+=N- and the grignard reagent is equivalent to a R- anion, therefore it adds to the nitrile carbon.