Imidazole → 3-[5-(tert-Butyldimethylsilanyloxy)-5-(4-fluorophenyl)pentanoyl]4-phenyloxazolidin-2-one

HRID 1725274Notes

Reaction equation

HRID 1725274 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([OH:26])[CH2:9][CH2:10][CH2:11][C:12]([N:14]2[CH:18]([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH2:17][O:16][C:15]2=[O:25])=[O:13])=[CH:4][CH:3]=1.N1C=CN=C1.[Si:32](Cl)([C:35]([CH3:38])([CH3:37])[CH3:36])([CH3:34])[CH3:33]>CN(C=O)C>[Si:32]([O:26][CH:8]([C:5]1[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=1)[CH2:9][CH2:10][CH2:11][C:12]([N:14]1[CH:18]([C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH2:17][O:16][C:15]1=[O:25])=[O:13])([C:35]([CH3:38])([CH3:37])[CH3:36])([CH3:34])[CH3:33]

Participants

5

Reactant 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 121116173-[5-(4-Fluorophenyl)-5-hydroxy-1-oxopentyl]-4-phenyl-2-oxazolidinone

Product 1

HCID 121116183-[5-(tert-Butyldimethylsilanyloxy)-5-(4-fluorophenyl)pentanoyl]4-phenyloxazolidin-2-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

30 g of 3-[5-(4-Fluorophenyl)-5-hydroxypentanoyl]-4-phenyloxazolidin-2-one are dissolved in 50 ml of DMF. 14.3 g of imidazole and 19 g of tert-butyldimethylsilyl chloride in 25 ml of DMF are added, and the mixture is then stirred at room temperature until the reaction has gone to completion (2-4 h). The reaction solution is concentrated, water is added and the mixture is extracted with ethyl acetate. The organic phase is dried over magnesium sulfate and concentrated, giving 10:

Workup

  1. customhas gone to completion (2-4 h)
  2. concentrationThe reaction solution is concentrated
  3. additionwater is added
  4. extractionthe mixture is extracted with ethyl acetate
  5. dry with materialThe organic phase is dried over magnesium sulfate
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-122f0f94b4374f128d466bb36d770a4c
Source dataset
uspto-grants-2009_02
Patent number
US07488829B2

Reaction notes

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