N,N'-Dimethylethylenediamine → HCID 18938044, compound

HRID 357742Notes

Reaction equation

HRID 357742 reaction equation
[S:1]1[CH:5]=[CH:4][C:3]([CH:6]=O)=[CH:2]1.[CH3:8][NH:9][CH2:10][CH2:11][NH:12][CH3:13]>C1(C)C=CC=CC=1>[CH3:8][N:9]1[CH2:10][CH2:11][N:12]([CH3:13])[CH:6]1[C:3]1[CH:4]=[CH:5][S:1][CH:2]=1

Participants

4

Reactant 2

HCID 8070N,N'-DimethylethylenediamineHCID 681353-Thiophenecarboxaldehyde

Product 1

HCID 18938044HCID 18938044, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

3-Thiophenecarbaldehyde (22.43 g) was dissolved in toluene (200 ml) and N,N'-dimethylethylenediamine (22.3 ml) was added. The mixture was stirred for 16 hours with removing azeotropic water under reflux by Dean-stark trap. The reaction mixture was concentrated under reduced pressure and the residue was distilled under reduced pressure to give 1,3-dimethyl-2-(3-thienyl)imidazolidine (5.88 g).

Workup

  1. customwith removing azeotropic water
  2. temperatureunder reflux by Dean-stark trap
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. distillationthe residue was distilled under reduced pressure

Sources & evidence

ORD record
ord-8d45f04cc9594cac81e1ba63009c4170
Source dataset
uspto-grants-1998_11
Patent number
US05840917

Reaction notes

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