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Process for deuteration of inert methylene

  • US 20050177015A1
  • Filed: 11/12/2002
  • Published: 08/11/2005
  • Est. Priority Date: 06/06/2002
  • Status: Active Grant
First Claim
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1. A method for deuteration of a hydrogen atom of a methyl group or a hydrogen atom bonded to a carbon atom at benzyl position and the other carbon atoms of an alkylene group having not less than 2 carbon atoms, in a compound containing the methyl group or the alkylene group having not less than 2 carbon atoms, directly bonded to an aromatic ring which may have a substituent, which comprises placing said compound in a deuterated solvent in the presence of activated palladium carbon, under sealed reflux condition.

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