Sodium Thiosulfate → (3S,4S)-1-Benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-formylpyrrolidine

HRID 1253421Notes

Reaction equation

HRID 1253421 reaction equation
[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C@H:14]([CH2:16][OH:17])[C@H:13]([NH:18][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.S([O-])([O-])(=O)=S.[Na+].[Na+]>ClCCl>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C@H:14]([CH:16]=[O:17])[C@H:13]([NH:18][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:12]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 24477Sodium ThiosulfateHCID 159087TriacetoxyperiodinaneHCID 23635905(3S,4S)-Benzyl 3-((tert-butoxycarbonyl)amino)-4-(hydroxymethyl)pyrrolidine-1-carboxylate

Product 1

HCID 59665257(3S,4S)-1-Benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-formylpyrrolidine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(3S,4S)-1-Benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-hydroxymethylpyrrolidine (1.00 g, 2.85 mmol) was dissolved in dichloromethane (40 mL). Under cooling with ice, Dess Martin reagent (1.42 g, 3.42 mmol) was added thereto, and the resultant mixture was stirred at room temperature for 2 hours under a nitrogen atmosphere. Under cooling, 5% aqueous sodium thiosulfate solution (50 mL) was added thereto, followed by stirring for 0.5 hours. The aqueous layer was extracted with dichloromethane (30 mL×1), and the organic layer was washed sequentially by a 0.05 mol/L aqueous sodium hydroxide solution (60 mL) and saturated brine (100 mL), and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure, to thereby yield the title compound as a colorless oily substance (0.90 g, 91%).

Workup

  1. additionwas added
  2. temperatureUnder cooling
  3. extractionThe aqueous layer was extracted with dichloromethane (30 mL×1)
  4. washthe organic layer was washed sequentially by a 0.05 mol/L aqueous sodium hydroxide solution (60 mL) and saturated brine (100 mL)
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationAfter filtration
  7. concentrationthe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record
ord-176fd60820bd4d9b96f64ab99e990f2f
Source dataset
uspto-grants-2013_06
Patent number
US08455482B2

Reaction notes

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