Acetone → HCID 68731899, compound
Reaction equation
[CH3:1][C:2]([C:6]1([OH:21])[CH2:10][CH2:9][N:8]([C:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[O:12])[CH2:7]1)([CH3:5])[CH:3]=[O:4].CC(C)=[O:24].Cl.O.[Mn]([O-])(=O)(=O)=O.[K+]>>[CH2:14]([O:13][C:11]([N:8]1[CH2:9][CH2:10][C:6]([C:2]([CH3:1])([CH3:5])[C:3]([OH:24])=[O:4])([OH:21])[CH2:7]1)=[O:12])[C:15]1[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1Participants
6
Conditions
- Temperature
- 15 °C
Procedure
Benzyl 3-(1,1-dimethyl-2-oxoethyl)-3-hydroxypyrrolidine-1-carboxylate (12.70 g, 0.04359 mol) was dissolved in acetone (179.5 mL, 2.444 mol) and cooled to 15° C. and 1.0 M of hydrogen chloride in water (65.39 mL, 0.06539 mol) was added dropwise. After addition of the HCl was complete, a solution of potassium permanganate (11.0 g, 0.0697 mol) in acetone (493.6 mL, 6.722 mol) was added dropwise. The reaction mixture was stirred at room temperature for 6 h, filtered and the filter cake was washed with acetone. The filtrate was evaporated, in vacuo, diluted with methylene chloride, dried, filtered and the solvent was evaporated, in vacuo, to provide a crude product which was used directly in next step. LCMS (M+H) 308.2.
Workup
- filtrationfiltered
- washthe filter cake was washed with acetone
- customThe filtrate was evaporated, in vacuo
- additiondiluted with methylene chloride
- customdried
- filtrationfiltered
- customthe solvent was evaporated, in vacuo
Sources & evidence
- ORD record
- ord-c79fd8e8f5ee4257ae460465debae800
- Source dataset
- uspto-grants-2012_11
- Patent number
- US08309718B2
Reaction notes
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