Hydrogen Peroxide → HCID 54500721, compound

HRID 479053Notes

Reaction equation

HRID 479053 reaction equation
[C:1]([O:5][C:6](=[O:31])[CH2:7][C@@H:8]([C:16](N1[C@H](C)[C@H](C2C=CC=CC=2)OC1=O)=[O:17])[CH2:9][C@H:10]([CH3:15])[CH2:11][CH2:12][CH2:13][CH3:14])([CH3:4])([CH3:3])[CH3:2].[OH:32]O>C1COCC1.O>[C:1]([O:5][C:6](=[O:31])[CH2:7][C@H:8]([CH2:9][C@H:10]([CH3:15])[CH2:11][CH2:12][CH2:13][CH3:14])[C:16]([OH:17])=[O:32])([CH3:2])([CH3:3])[CH3:4]

Participants

5

Reactant 2

HCID 784Hydrogen PeroxideHCID 57052159(3S,5R)-5-Methyl-3-((4R,5S)-methyl-2-oxo-5-phenyl-oxazolidine-3-carbonyl)-nonanoic acid tert-butyl ester

Product 1

HCID 54500721HCID 54500721, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of ester 138 (2.65 g, 6.14 mmol) in 20 mL THF at 0° C. was added a precooled (0° C.) solution of LiOH monohydrate (1.0 g, 23.8 mmol) and hydrogen peroxide (30 wt % aqueous soln, 5.0 mL) in 10 mL H2O. The mixture was stirred vigorously for 90 minutes, then warmed to ambient temperature and stirred 90 minutes. The reaction was quenched at 0° C. by addition of 100 mL 10% NaHSO3 (aq), then extracted with Et2O. The phases were separated, and the organic phase washed with brine, dried (MgSO4), and concentrated. The crude acid 139 was used without purification.

Workup

  1. stirringstirred 90 minutes
  2. customThe reaction was quenched at 0° C. by addition of 100 mL 10% NaHSO3 (aq)
  3. extractionextracted with Et2O
  4. customThe phases were separated
  5. washthe organic phase washed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated
  8. customThe crude acid 139 was used without purification

Sources & evidence

ORD record
ord-808bdf6996f2491fa17db6c65a79dde2
Source dataset
uspto-grants-2003_11
Patent number
US06642398B2

Reaction notes

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