Hydrochloric Acid → 4-(6-Acetyl-3-(3-(4-acetyl-3-hydroxy-2-propylphenylthio)propoxy)-2-propylphenoxy)butyric acid

HRID 33604Notes

Reaction equation

HRID 33604 reaction equation
[C:1]([C:4]1[C:9]([O:10][CH2:11][CH2:12][CH2:13][C:14]([O:16]CC)=[O:15])=[C:8]([CH2:19][CH2:20][CH3:21])[C:7]([O:22][CH2:23][CH2:24][CH2:25][S:26][C:27]2[CH:32]=[CH:31][C:30]([C:33](=[O:35])[CH3:34])=[C:29]([OH:36])[C:28]=2[CH2:37][CH2:38][CH3:39])=[CH:6][CH:5]=1)(=[O:3])[CH3:2].[OH-].[Na+].O.Cl>C(O)C>[C:1]([C:4]1[C:9]([O:10][CH2:11][CH2:12][CH2:13][C:14]([OH:16])=[O:15])=[C:8]([CH2:19][CH2:20][CH3:21])[C:7]([O:22][CH2:23][CH2:24][CH2:25][S:26][C:27]2[CH:32]=[CH:31][C:30]([C:33](=[O:35])[CH3:34])=[C:29]([OH:36])[C:28]=2[CH2:37][CH2:38][CH3:39])=[CH:6][CH:5]=1)(=[O:3])[CH3:2]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 15712389Ethyl 4-[6-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenylthio)propoxy]-2-propylphenoxy]butyrate

Product 1

HCID 98932284-(6-Acetyl-3-(3-(4-acetyl-3-hydroxy-2-propylphenylthio)propoxy)-2-propylphenoxy)butyric acidYield 65.2%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a mixture of ethyl 4-[6-acetyl-3-[3-(4-acetyl-3-hydroxy -2-propylphenylthio)propoxy]-2-propylphenoxy]butyrate (2.1 g) in ethanol (10 ml) was added a solution of sodium hydroxide (0.26 g) dissolved into water (10 ml). After heating on a hot water bath for 5 minutes, the mixture was cooled by adding ice-water and was made acidic by addition of hydrochloric acid, followed by extraction with ethyl acetate. The organic layer was washed with water, dried over sodium sulfate and concentrated. The resultant residue was separated and purified by silica-gel column chromatography (eluting with ethanol:methylene chloride=3:100) to give the title compound (1.3 g, 65.2%) as colorless crystals, mp 79-81° C.

Workup

  1. temperatureAfter heating on a hot water bath for 5 minutes
  2. temperaturethe mixture was cooled
  3. extractionfollowed by extraction with ethyl acetate
  4. washThe organic layer was washed with water
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated
  7. customThe resultant residue was separated
  8. custompurified by silica-gel column chromatography (eluting with ethanol:methylene chloride=3:100)

Sources & evidence

ORD record
ord-f27dc1158b5d49c7b8bd82df52de71e7
Source dataset
uspto-grants-2008_09
Patent number
US07429617B2

Reaction notes

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