4-Oxo-4-(4-phenylsulfanyl-phenyl)-butyric acid → 4-[4-(Phenylsulfanyl)phenyl]butanoic acid

HRID 971276Notes

Reaction equation

HRID 971276 reaction equation
O=[C:2]([C:8]1[CH:13]=[CH:12][C:11]([S:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:10][CH:9]=1)[CH2:3][CH2:4][C:5]([OH:7])=[O:6]>Cl>[C:15]1([S:14][C:11]2[CH:10]=[CH:9][C:8]([CH2:2][CH2:3][CH2:4][C:5]([OH:7])=[O:6])=[CH:13][CH:12]=2)[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1

Participants

3

Reactant 1

HCID 155947094-Oxo-4-(4-phenylsulfanyl-phenyl)-butyric acid

Product 1

HCID 248345484-[4-(Phenylsulfanyl)phenyl]butanoic acidYield 81.1%

Reagents, catalysts & solvents 1

HCID 313Hydrochloric AcidSolvent

Procedure

Powdered Zinc (66 g) was washed with 2% HCl, added to a solution of HgCl2 (6 g) in 50 mL of 6M HCl. This mixture was shaken vigorously for 5 minutes, and excess liquid was decanted. The mixture was then added to a mechanically stirred suspension of 4-oxo-4-(4-phenylsulfanyl-phenyl)-butyric acid (6.5 g, 22.7 mmol) in 450 mL of 6M HCl, and the reaction mixture was stirred at room temperature for 5 days. The mixture was then decanted to remove excess HCl, and quenched by addition of 250 mL water. The aqueous mixture was extracted three times with 100 mL of EtOAc, and the combined organic layers were dried under reduced pressure to yield 5.0 g (18.4 mmol, 81%) of 4-(4-phenylsulfanyl-phenyl)-butyric acid as a crude solid. MS: 273 (M+H)+.

Workup

  1. washPowdered Zinc (66 g) was washed with 2% HCl
  2. additionadded to a solution of HgCl2 (6 g) in 50 mL of 6M HCl
  3. customexcess liquid was decanted
  4. stirringthe reaction mixture was stirred at room temperature for 5 days
  5. customThe mixture was then decanted
  6. customto remove excess HCl
  7. customquenched by addition of 250 mL water
  8. extractionThe aqueous mixture was extracted three times with 100 mL of EtOAc
  9. customthe combined organic layers were dried under reduced pressure

Sources & evidence

ORD record
ord-9de34af292c24c2fa22f8d5793817c7d
Source dataset
uspto-grants-2007_12
Patent number
US07312359B2

Reaction notes

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