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Process for the preparation of isovanillin

  • US 5,786,516 A
  • Filed: 02/14/1997
  • Issued: 07/28/1998
  • Est. Priority Date: 10/24/1994
  • Status: Expired due to Fees
First Claim
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1. A process for the preparation of isovanillin, comprising carrying out a dealkylation, selectively in the 3-position of a 3-alkoxy-4-methoxybenzaldehyde using a strong acid wherein said alkoxy group has at least two carbon atoms .

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