2,4-Dihydroxybenzoic Acid → HCID 178524493, compound

HRID 1684419Notes

Reaction equation

HRID 1684419 reaction equation
[Bi:1].[C:2]([OH:12])(=[O:11])[C:3]1[C:4](=[CH:6][C:7](=[CH:9][CH:10]=1)[OH:8])[OH:5]>>[C:2]([O-:12])(=[O:11])[C:3]1[C:4](=[CH:6][C:7](=[CH:9][CH:10]=1)[OH:8])[OH:5].[Bi+3:1].[C:2]([O-:12])(=[O:11])[C:3]1[C:4](=[CH:6][C:7](=[CH:9][CH:10]=1)[OH:8])[OH:5].[C:2]([O-:12])(=[O:11])[C:3]1[C:4](=[CH:6][C:7](=[CH:9][CH:10]=1)[OH:8])[OH:5]

Participants

3

Reactant 2

HCID 14912,4-Dihydroxybenzoic AcidHCID 5359367Bismuth

Product 1

HCID 178524493HCID 178524493, compound

Conditions

Temperature
50 °C

Procedure

In this process the β-resorcylic acid is dissolved in the hydroalcoholic medium with an increase in the temperature to a temperature of between approximately 40° C. and approximately 60° C., preferably approximately 50° C., and then a bismuth compound is added with stirring; the temperature is raised to a temperature of between approximately 70° C. and approximately 90° C., preferably approximately 80° C., allowing the reaction to continue, advantageously for between 2 and 15 hours, preferably approximately 5 hours. The suspension is filtered off, washed and dried. The product obtained corresponds to a bismuth β-resorcylate containing two bismuth atoms per molecule of acid.

Workup

  1. temperaturethe temperature is raised to a temperature of between approximately 70° C. and approximately 90° C., preferably approximately 80° C.
  2. customthe reaction
  3. filtrationThe suspension is filtered off
  4. washwashed
  5. customdried

Sources & evidence

ORD record
ord-cdcef2a60ff74c23a1861b8edcf7418e
Source dataset
uspto-grants-1997_06
Patent number
US05639987

Reaction notes

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