Water → HCID 67790858, compound

HRID 2380563Notes

Reaction equation

HRID 2380563 reaction equation
[C:1]([C:5]1[C:6]([O:18][CH2:19][CH3:20])=[C:7]([CH:11]=[C:12]([C:14]([CH3:17])([CH3:16])[CH3:15])[CH:13]=1)[C:8]([OH:10])=[O:9])([CH3:4])([CH3:3])[CH3:2].[OH-].[K+].O.O.O.O.O.O.O.O.S([O-])([O-])(=O)=O.[Zn+2:36]>CO>[C:1]([C:5]1[C:6]([O:18][CH2:19][CH3:20])=[C:7]([CH:11]=[C:12]([C:14]([CH3:17])([CH3:16])[CH3:15])[CH:13]=1)[C:8]([O-:10])=[O:9])([CH3:4])([CH3:2])[CH3:3].[Zn+2:36].[C:1]([C:5]1[C:6]([O:18][CH2:19][CH3:20])=[C:7]([CH:11]=[C:12]([C:14]([CH3:17])([CH3:16])[CH3:15])[CH:13]=1)[C:8]([O-:10])=[O:9])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 962Water2×HCID 14797Potassium HydroxideHCID 62640Zinc Sulfate HeptahydrateHCID 18954600HCID 18954600, compound

Product 1

HCID 67790858HCID 67790858, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
60 °C

Procedure

Five parts of 3,5-di-t-butyl-2-ethoxybenzoic acid was dissolved in 80 parts of methyl alcohol, followed by the addition of an aqueous solution of 1.1 parts of 96% potassium hydroxide in 10 parts of water. The resulting mixture was heated to 60° C. An aqueous solution of 2.6 parts of zinc sulfate heptahydrate in 10 parts of water was dropped into the resulting mixture over a period of 15 minutes. After the completion of the dropping, the obtained mixture was stirred at that temperature for 2 hours, cooled to a room temperature and filtered to recover a white crystalline precipitate. This precipitate was dispersed in 60 parts of water, washed therewith and filtered. The filter cake was dried to give 3.9 parts of a white crystal. The melting point thereof was 178° to 180° C.

Workup

  1. temperaturecooled to a room temperature
  2. filtrationfiltered
  3. customto recover a white crystalline precipitate
  4. additionThis precipitate was dispersed in 60 parts of water
  5. washwashed
  6. filtrationfiltered
  7. customThe filter cake was dried
  8. customto give 3.9 parts of a white crystal
  9. customthereof was 178° to 180° C.

Sources & evidence

ORD record
ord-4d7b4ffbc7474726b563299a7e90839f
Source dataset
uspto-grants-1994_11
Patent number
US05368971

Reaction notes

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