Page 97 - Pharm.Org.Chem-I 02-06-05-101
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Stereospecific Addition of Br2 to
                  Isomeric 2-Butene

A. cis-2-Butene

 B. trans-2-Butene

2) Addition of Hydrogen (Catalytic hydrogenation of alkenes
  or reduction reactions)
   Mechanism: Syn addition

Ni, Pd or Pt could be used as catalysts for hydrogenation of alkenes to the
corresponding alkanes.

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