Hydrochloric Acid → 10-[(3RS,4RS)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylchroman-4-yl]-2-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)decanoic acid

HRID 1267491ノート

反応式

HRID 1267491 の反応式
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28]([CH2:34][CH2:35][C:36]([F:48])([F:47])[C:37]([F:46])([F:45])[C:38]([F:44])([F:43])[C:39]([F:42])([F:41])[F:40])[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][O:9]2)=[CH:4][CH:3]=1.[OH-].[K+].Cl>CO.O>[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]([CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28]([CH2:34][CH2:35][C:36]([F:48])([F:47])[C:37]([F:45])([F:46])[C:38]([F:43])([F:44])[C:39]([F:40])([F:41])[F:42])[C:29]([OH:31])=[O:30])[C:7]([C:13]3[CH:18]=[CH:17][C:16]([OH:19])=[CH:15][CH:14]=3)([CH3:12])[CH2:8][O:9]2)=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 18546291ethyl 10-[(3RS,4RS)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylchroman-4-yl]-2-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)decanoate

生成物 1

HCID 1028330810-[(3RS,4RS)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylchroman-4-yl]-2-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)decanoic acid収率 81%

試薬・触媒・溶媒 1

HCID 22242641Methanol--water (1/1)溶媒

実験手順

Ethyl 10-[(3RS,4RS)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylchroman-4-yl]-2-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)decanoate (1.10 g, 1.570 mmol) and potassium hydroxide (880 mg, 15.70 mmol) were added to a methanol/water mixture (2:1, 15 ml), followed by heating under reflux for 4 hours. After the reaction mixture was neutralized with 1N hydrochloric acid, the solvent was distilled off under reduced pressure. The residue was diluted with water, adjusted to pH 2-3 with 1N hydrochloric acid, and then extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride and dried over anhydrous magnesium sulfate. After distilling off the solvent, the residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane=1/4) to give 10-[(3RS,4RS)-7-hydroxy-3-(4-hydroxyphenyl)-3-methylchroman-4-yl]-2-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)decanoic acid (852 mg, Yield 81%) as a colorless foam.

後処理

  1. temperatureby heating
  2. temperatureunder reflux for 4 hours
  3. distillationthe solvent was distilled off under reduced pressure
  4. additionThe residue was diluted with water
  5. extractionextracted with ethyl acetate
  6. washThe organic layer was washed with saturated aqueous sodium chloride
  7. dry with materialdried over anhydrous magnesium sulfate
  8. distillationAfter distilling off the solvent
  9. customthe residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane=1/4)

出典と根拠

ORDレコード
ord-0448e8d96ec4494ba0abed64ec3881be
出典データセット
uspto-grants-2003_04
特許番号
US06552069B1

反応ノート

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