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Process for making 5-introbarbituric acid and salts thereof

  • US 5,428,165 A
  • Filed: 01/10/1994
  • Issued: 06/27/1995
  • Est. Priority Date: 01/06/1994
  • Status: Expired due to Fees
First Claim
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1. A process for preparing salts of 5-nitrobarbituric acid comprising allowing an in situ generated diethyl nitro malonate to condense with urea to obtain 5-nitrobarbituric acid and neutralizing said acid with a nitrogen containing organic base, ammonium, hydrazinium, alkali metal salts, alkaline earth metal salts, salts of transition metals, or mixtures thereof, and recovering the thus formed salt of 5-nitrobarbituric acid without distillation or isolation of intermediate products during the preparation of the 5-nitrobarbituric acid salts.

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