Pyridine → HCID 15592287, compound

HRID 1758618Notes

Reaction equation

HRID 1758618 reaction equation
[C:1]([N:10]([CH2:12][C:13]([NH2:15])=[S:14])[CH3:11])([O:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)=[O:2].N1C=CC=CC=1.[Cl:22][CH2:23][C:24](=O)[CH2:25]Cl>C(O)C>[Cl:22][CH2:23][C:24]1[N:15]=[C:13]([CH2:12][N:10]([C:1]([O:3][C:4]2[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=2)=[O:2])[CH3:11])[S:14][CH:25]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 107931,3-DichloroacetoneHCID 13102903HCID 13102903, compound

Product 1

HCID 15592287HCID 15592287, compoundYield 77.1%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

To a cooled solution of (N-carbophenoxy-N-methylamino)thioacetamide (1.0 g; 4.46 mmoles) and dry pyridine (0.36 ml, 4.46 mmoles) in 6 ml of absolute ethanol was added a solution of 1,3-dichloropropanone (0.57 g; 4.49 mmoles) in 3 ml of absolute ethanol. The mixture was heated at reflux temperature for 1.5 hours, then evaporated under reduced pressure and the oil residue partitioned between ether and water. The aqueous layer was extracted with ether and the combined ether phase was washed with water, saturated aqueous sodium chloride solution and dried. Filtration and evaporation yielded 1.02 g of the title compound as a viscous oil; TLC [silica/CH2Cl2 :CH3CN (85:15)] gave Rf=0.82. The NMR spectrum (60 MHz) in CDCl3 gave the following resonances δ: 7.16 (m, 6H); 4.77 (broad s, 2H); 4.60 (s, 2H); 3.07 (broad s, 3H).

Workup

  1. temperatureThe mixture was heated
  2. temperatureat reflux temperature for 1.5 hours
  3. customevaporated under reduced pressure
  4. customthe oil residue partitioned between ether and water
  5. extractionThe aqueous layer was extracted with ether
  6. washthe combined ether phase was washed with water, saturated aqueous sodium chloride solution
  7. customdried
  8. filtrationFiltration and evaporation

Sources & evidence

ORD record
ord-a4d755619e614550bdeb05c6bbb6a95e
Source dataset
uspto-grants-1983_02
Patent number
US04374248

Reaction notes

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