Hydrochloric Acid → 10-[(3R,4R)-7-hydroxy-3-(4-hydroxyphenyl)-3-methythiochroman-4-yl]-2-(4,4,5,5,5-pentafluoropentyl)decanoic acid

HRID 398074Notes

Reaction equation

HRID 398074 reaction equation
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([C@H:6]([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28]([CH2:34][CH2:35][CH2:36][C:37]([F:43])([F:42])[C:38]([F:41])([F:40])[F:39])[C:29]([O:31]CC)=[O:30])[C@@:7]([C:13]3[CH:18]=[CH:17][C:16]([OH:19])=[CH:15][CH:14]=3)([CH3:12])[CH2:8][S:9]2)=[CH:4][CH:3]=1.[OH-].[Na+].Cl>C(O)C.O>[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([C@H:6]([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28]([CH2:34][CH2:35][CH2:36][C:37]([F:43])([F:42])[C:38]([F:39])([F:40])[F:41])[C:29]([OH:31])=[O:30])[C@@:7]([C:13]3[CH:14]=[CH:15][C:16]([OH:19])=[CH:17][CH:18]=3)([CH3:12])[CH2:8][S:9]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 12043771ethyl 10-[(3R,4R)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylthiochroman-4-yl]-2-(4,4,5,5,5-pentafluoropentyl)decanoate

Product 1

HCID 1204377210-[(3R,4R)-7-hydroxy-3-(4-hydroxyphenyl)-3-methythiochroman-4-yl]-2-(4,4,5,5,5-pentafluoropentyl)decanoic acidYield 91%

Reagents, catalysts & solvents 1

HCID 19096565Water ethanolSolvent

Procedure

Ethyl 10-[(3R,4R)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylthiochroman-4-yl]-2-(4,4,5,5,5-pentafluoropentyl)decanoate (2.08 g, 3.297 mmol) and sodium hydroxide (527 mg, 13.19 mmol) were added to an ethanol/water mixture (40/10 ml), followed by heating under reflux for 4 hours. The reaction mixture was acidified with 2N hydrochloric acid and then extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate. After distilling off the solvent, the residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane/dichloromethane=1/4/1) to give 10-[(3R,4R)-7-hydroxy-3-(4-hydroxyphenyl)-3-methythiochroman-4-yl]-2-(4,4,5,5,5-pentafluoropentyl)decanoic acid (1.8 g, Yield 91%) as a foam.

Workup

  1. temperatureby heating
  2. temperatureunder reflux for 4 hours
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  5. distillationAfter distilling off the solvent
  6. customthe residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane/dichloromethane=1/4/1)

Sources & evidence

ORD record
ord-bc1627cac4364628948606b0c3140fac
Source dataset
uspto-grants-2003_08
Patent number
US06610733B2

Reaction notes

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