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Hydrogenation of alkynes and alkenes

  1. Nov 15, 2006 #1

    I have a question about catalytic hydrogenation reagents. I know that you can perform syn hydrogenation of alkenes with H2 and Pd catalyst, and the same goes for alkynes except for the addition of quinoline (and CaCO3 doped Pd catalyst).

    I was wondering if there is a reaction with alkynes and just H2 and Pd catalyst?
  2. jcsd
  3. Nov 15, 2006 #2
    got it. quinoline stops reduction at the alkene stage. reacting alkyne with direct H2 and Pd gives a tetrahydrogenated alkane.
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