Triethylamine → HCID 24284513, compound

HRID 1404445Notes

Reaction equation

HRID 1404445 reaction equation
[C:1]1([CH:7]2[CH2:11][CH2:10][NH:9][CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:12](Cl)(=[O:16])[CH2:13][CH2:14][CH3:15].C(N(CC)CC)C>ClCCl>[C:1]1([CH:7]2[CH2:11][CH2:10][N:9]([C:12](=[O:16])[CH2:13][CH2:14][CH3:15])[CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 8855Butyryl chlorideHCID 31467433-Phenylpyrrolidine

Product 1

HCID 24284513HCID 24284513, compoundYield 87%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 3-phenylpyrrolidine (294 mg, 2 mmol) in dry dichloromethane (6 mL) is cooled in an ice bath, and butanoyl chloride (266 mg, 2.5 mmol, 1.25 eq) and triethylamine (417 μL, 3 mmol, 1.5 eq) are added. After stirring for 6 hours at room temperature the reaction mixture is diluted with dichloromethane (10 mL). The organic solution is subsequently washed with 1 M KHSO4, 5% NaHCO3 and brine. After drying over Na2SO4, dichloromethane is removed in vacuo and the crude material is purified by flash chromatography (silicagel, ethyl acetate/toluene 1:4). The fractions containing 1-(3-phenylpyrrolidin-1-yl)butan-1-one are collected and the solvent is removed in vacuo to give 378 mg of colorless oil.

Workup

  1. washThe organic solution is subsequently washed with 1 M KHSO4, 5% NaHCO3 and brine
  2. dry with materialAfter drying over Na2SO4, dichloromethane
  3. customis removed in vacuo
  4. customthe crude material is purified by flash chromatography (silicagel, ethyl acetate/toluene 1:4)
  5. additionThe fractions containing 1-(3-phenylpyrrolidin-1-yl)butan-1-one
  6. customare collected
  7. customthe solvent is removed in vacuo

Sources & evidence

ORD record
ord-366c8a7421db4fc3b0be7d457de5b341
Source dataset
uspto-grants-2014_12
Patent number
US08912329B2

Reaction notes

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