2,6-Dihydroxybenzoic Acid → Bismuth

HRID 1684418Notes

Reaction equation

HRID 1684418 reaction equation
[C:1]([OH:11])(=[O:10])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][C:8]=1[OH:9])[OH:4].[Bi:12]>O>[C:1]([O-:11])(=[O:10])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][C:8]=1[OH:9])[OH:4].[Bi:12]

Participants

5

Reactant 2

HCID 93382,6-Dihydroxybenzoic AcidHCID 5359367Bismuth2×

Product 2

HCID 5359367BismuthHCID 178524827HCID 178524827, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
50 °C

Procedure

A first process consists in reacting γ-resorcylic acid with a bismuth compound; the said acid is dispersed in water and the temperature of the mixture is raised to a temperature of between approximately 40° C. and approximately 60° C., preferably approximately 50° C., and then the bismuth compound is added and the temperature is raised, with stirring, 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 γ-resorcylate containing one atom of bismuth per molecule of acid.

Workup

  1. temperaturethe temperature is raised
  2. customthe reaction
  3. filtrationThe suspension is filtered off
  4. washwashed
  5. customdried

Sources & evidence

ORD record
ord-6a0caf36cd3c4eb5a096797c3c6f267c
Source dataset
uspto-grants-1997_06
Patent number
US05639987

Reaction notes

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