Water → HCID 131724993, compound

HRID 1071497Notes

Reaction equation

HRID 1071497 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11](OS(C)(=O)=O)[CH2:10][CH:9]1[C:18]([CH3:26])([CH3:25])[O:19][SiH2:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:7])([CH3:4])([CH3:3])[CH3:2].[N-:27]=[N+:28]=[N-:29].[Na+].O.CCCCCC.C(OCC)(=O)C>CN(C=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11]([N:27]=[N+:28]=[N-:29])[CH2:10][CH:9]1[C:18]([CH3:26])([CH3:25])[O:19][SiH2:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 4

HCID 962WaterHCID 33557Sodium AzideHCID 21226206Ethyl acetate hexaneHCID 131724992HCID 131724992, compound

Product 1

HCID 131724993HCID 131724993, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

The 4-methanesulfonyloxy-2-(t-butyl-dimethyl-silanyloxymethyl)-pyrrolidine-1-carboxylic acid t-butyl ester (220.94 mg, 0.54 mmol) was taken up in dry DMF under argon and sodium azide (175.31 mg, 2.70 mmol) was added. The reaction was then heated to 60° C. for 48 h. The reaction was poured into water and the aqueous layer was extracted three times with ethyl acetate. The combined organic layers were washed with sat NaHCO3 and brine then dried over MgSO4. The solution was filtered and the solvent removed under reduced pressure. The product was isolated by flash chromatography. (5:1 hexane-ethyl acetate) Yield 184.83 mg. C16H32N4O3Si MS m/e=357.3 (M+H).

Workup

  1. extractionthe aqueous layer was extracted three times with ethyl acetate
  2. washThe combined organic layers were washed with sat NaHCO3 and brine
  3. dry with materialthen dried over MgSO4
  4. filtrationThe solution was filtered
  5. customthe solvent removed under reduced pressure
  6. customThe product was isolated by flash chromatography

Sources & evidence

ORD record
ord-ea0f741ddd344e66b85a82b2554a3c71
Source dataset
uspto-grants-2005_06
Patent number
US06906067B2

Reaction notes

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