N-(7-(1,2-Dihydroxyethyl)-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide → N-(7-(2-Hydroxyethyl)-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide

HRID 2376447Notes

Reaction equation

HRID 2376447 reaction equation
O[CH:2]([C:5]1[C:13]2[O:12][CH2:11][CH:10]([C:14]3[CH:19]=[CH:18][C:17]([CH:20]([CH3:22])[CH3:21])=[CH:16][CH:15]=3)[C:9]=2[C:8]([CH3:23])=[C:7]([NH:24][C:25](=[O:31])[CH2:26][C:27]([CH3:30])([CH3:29])[CH3:28])[C:6]=1[CH3:32])[CH2:3][OH:4]>C(O)C.[OH-].[OH-].[Pd+2]>[OH:4][CH2:3][CH2:2][C:5]1[C:13]2[O:12][CH2:11][CH:10]([C:14]3[CH:19]=[CH:18][C:17]([CH:20]([CH3:21])[CH3:22])=[CH:16][CH:15]=3)[C:9]=2[C:8]([CH3:23])=[C:7]([NH:24][C:25](=[O:31])[CH2:26][C:27]([CH3:30])([CH3:29])[CH3:28])[C:6]=1[CH3:32]

Participants

4

Reactant 1

HCID 23114170N-(7-(1,2-Dihydroxyethyl)-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide

Product 1

HCID 23114309N-(7-(2-Hydroxyethyl)-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamideYield 21%

Reagents, catalysts & solvents 2

HCID 9942167Palladium hydroxideCatalystHCID 702EthanolSolvent

Procedure

A solution of N-(7-(1,2-dihydroxyethyl)-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide (200 mg, 0.455 mmol) obtained in Example 84 and palladium hydroxide on carbon (20 mg) in ethanol (20 mL) was stirred at 60° C. for 3 hours under a hydrogen atmosphere. The catalyst was removed and the reaction solution was concentrated under reduced pressure. Water was added to the residue and the product was extracted with ethyl acetate. The organic layer was washed with water, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate:hexane=7:3) to obtain 40 mg (yield: 21%) of the title compound. Amorphous powder.

Workup

  1. customThe catalyst was removed
  2. concentrationthe reaction solution was concentrated under reduced pressure
  3. additionWater was added to the residue
  4. extractionthe product was extracted with ethyl acetate
  5. washThe organic layer was washed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate:hexane=7:3)

Sources & evidence

ORD record
ord-9248b05f7aad48a39435b986a6e5c76b
Source dataset
uspto-grants-2008_12
Patent number
US07465815B2

Reaction notes

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