Water → (R)-1-Benzyl-3-pyrrolidinol tosylate

HRID 1532254Notes

Reaction equation

HRID 1532254 reaction equation
[CH2:1]([N:8]1[CH2:12][CH2:11][C@@H:10]([OH:13])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:14]1([CH3:24])[CH:19]=[CH:18][C:17]([S:20](Cl)(=[O:22])=[O:21])=[CH:16][CH:15]=1.[OH2:25]>N1C=CC=CC=1>[CH2:1]([N:8]1[CH2:12][CH2:11][C@@H:10]([OH:13])[CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1.[S:20]([C:17]1[CH:18]=[CH:19][C:14]([CH3:24])=[CH:15][CH:16]=1)([O-:22])(=[O:21])=[O:25]

Participants

5

Reactant 3

HCID 962WaterHCID 73974-Toluenesulfonyl chlorideHCID 643472(R)-(+)-1-Benzyl-3-pyrrolidinol

Product 1

HCID 86583595(R)-1-Benzyl-3-pyrrolidinol tosylateYield 92%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a stirred solution of (R)-1-benzyl-3-pyrrolidinol (1.77 g, 10 mmol) in pyridine(30 ml) was added p-toluenesulfonyl chloride (9.53 g, 50 mmol) by portions at 0° C. After 90 h stirring at room temperature, water was added to the reaction mixture and the mixture was extracted with ether (150 ml). The extract was washed with water, brine, dried(Na2SO4), and concentrated to give 3.06 g (92%) of brown oil.

Workup

  1. extractionthe mixture was extracted with ether (150 ml)
  2. washThe extract was washed with water, brine, dried(Na2SO4)
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-b0d79f5e360b4e2bbdeea790d4f23034
Source dataset
uspto-grants-2001_03
Patent number
US06201007B1

Reaction notes

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