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

HRID 913230Notes

Reaction equation

HRID 913230 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-2ce123bbdfa7493f93eb5f40f25c868f
Source dataset
uspto-grants-2011_09
Patent number
US08026282B2

Reaction notes

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