Water → HCID 22261980, compound

HRID 1610363Notes

Reaction equation

HRID 1610363 reaction equation
[OH:1][CH:2]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[CH:3]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][CH:9]=1)C(O)=O.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1.C([N:43]([CH2:46]C)CC)C.[OH2:48]>O1CCCC1>[C:18]1([CH:2]2[O:1][C:46](=[O:48])[NH:43][CH:3]2[CH2:7][C:8]2[CH:13]=[CH:12][C:11]([C:14]([F:15])([F:16])[F:17])=[CH:10][CH:9]=2)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 22261978HCID 22261978, compound

Product 1

HCID 22261980HCID 22261980, compoundYield 93%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of (2RS,3RS)-3-hydroxy-3-phenyl-2-((4-(trifluoromethyl)phenyl)methyl)propionic acid (7 g, 21.6 mmol) in tetrahydrofuran (200 ml) were added diphenylphosphoryl azide (5.12 ml, 23.7 mmol) and triethylamine (4.5 ml, 32.4 mmol) and the mixture was heated under reflux for 4 hrs. The reaction solution was allowed to stand at room temperature, water (200 ml) was added, and the mixture was extracted with ethyl acetate (200 ml×2). The extract was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate and evaporated-under reduced pressure. The residue was recrystallized from ethyl acetate-hexane to give (4RS,5SR)-5-phenyl-4-((4-(trifluoromethyl)phenyl)methyl)-1,3-oxazolidin-2-one (6.5 g, 93%).

Workup

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 4 hrs
  3. customto stand at room temperature
  4. extractionthe mixture was extracted with ethyl acetate (200 ml×2)
  5. washThe extract was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate and saturated brine
  6. dry with materialdried over anhydrous magnesium sulfate and evaporated-under reduced pressure
  7. customThe residue was recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-19d8f871c716470d8f3a58a2a96d440f
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

Loading…