Isopropylamine → 5-oxo-1-(phenylmethyl)-N-(2-propyl)3-pyrrolidinecarboxamide

HRID 2372056Notes

Reaction equation

HRID 2372056 reaction equation
[O:1]=[C:2]1[N:6]([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:5][CH:4]([C:14]([OH:16])=O)[CH2:3]1.C(N1C=CN=C1)(N1C=CN=C1)=O.[CH:29]([NH2:32])([CH3:31])[CH3:30]>C(#N)C>[O:1]=[C:2]1[N:6]([CH2:7][C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH2:5][CH:4]([C:14]([NH:32][CH:29]([CH3:31])[CH3:30])=[O:16])[CH2:3]1

Participants

5

Reactant 3

HCID 6363IsopropylamineHCID 682631,1'-CarbonyldiimidazoleHCID 990241-Benzyl-5-oxo-pyrrolidine-3-carboxylic acid

Product 1

HCID 47935185-oxo-1-(phenylmethyl)-N-(2-propyl)3-pyrrolidinecarboxamideYield 95.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of 16.4 g (75.0 mmole) of 5-oxo-1-(phenylmethyl)-3-pyrrolidinecarboxylic acid in 150 ml of acetonitrile was added 13.8 g (85.0 mmole) of 1,1-'carbonyldiimidazole. The reaction was heated to 60° C. for one hour, cooled to room temperature and treated with 5.0 g (85 mmole) of isopropylamine. The reaction was stirred at room temperature for 18 hours, the solvent removed in vacuo and the residue partitioned between chloroform and water. The organic layer was washed with water, 1N hydrochloric acid, dried over magnesium sulfate, and evaporated in vacuo to give 18.6 g of 5-oxo-1-(phenylmethyl)-N-(2-propyl)-3-pyrrolidinecarboxamide, mp 122-124° C.

Workup

  1. temperaturecooled to room temperature
  2. customthe solvent removed in vacuo
  3. customthe residue partitioned between chloroform and water
  4. washThe organic layer was washed with water, 1N hydrochloric acid
  5. dry with materialdried over magnesium sulfate
  6. customevaporated in vacuo

Sources & evidence

ORD record
ord-f5aa09f6bdb44ebd97405ad84cdcba4c
Source dataset
uspto-grants-1992_03
Patent number
US05097032

Reaction notes

Loading…