4-Toluenesulfonyl chloride → HCID 13362030, compound

HRID 569255Notes

Reaction equation

HRID 569255 reaction equation
[CH2:1]([N:8]1[C:12](=[O:13])[CH2:11][CH:10]([CH2:14][OH:15])[CH:9]1[C:16]1[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][C:17]=1[Cl:23])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[S:24](Cl)([C:27]1[CH:33]=[CH:32][C:30]([CH3:31])=[CH:29][CH:28]=1)(=[O:26])=[O:25]>[K]>[CH2:1]([N:8]1[C:12](=[O:13])[CH2:11][CH:10]([CH2:14][O:15][S:24]([C:27]2[CH:33]=[CH:32][C:30]([CH3:31])=[CH:29][CH:28]=2)(=[O:26])=[O:25])[CH:9]1[C:16]1[C:17]([Cl:23])=[CH:18][CH:19]=[CH:20][C:21]=1[Cl:22])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 73974-Toluenesulfonyl chlorideHCID 13362029HCID 13362029, compound

Product 1

HCID 13362030HCID 13362030, compoundYield 77.2%

Reagents, catalysts & solvents 1

HCID 5462222PotassiumSolvent

Procedure

To 40 g of 1-benzyl-2-(2,6-dichlorophenyl)-3-hydroxymethyl-pyrrolidine-5-one in 67 ml of potassium dried pyridine at 5°-10° was added 23.3 g of tosyl chloride over 30 minutes. After the addition, the mixture was stirred for 3 hours at 15° and then for 13 hours ambient temperature. The reaction mixture was added dropwise to a stirred ice-water solution and then set at ambient temperature for 72 hours. The light yellow solid was collected by filtration and then air dried. Trituration with ether followed by filtration provided 44.5 g of colorless crystals, m.p. 110°-114°.

Workup

  1. additionAfter the addition
  2. waitfor 13 hours ambient temperature
  3. waitset at ambient temperature for 72 hours
  4. filtrationThe light yellow solid was collected by filtration
  5. customair dried
  6. filtrationTrituration with ether followed by filtration

Sources & evidence

ORD record
ord-98c3769f554040fb9c0e87b65a2f204a
Source dataset
uspto-grants-1988_03
Patent number
US04731457

Reaction notes

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