Piperidine → HCID 57112842, compound

HRID 357211Notes

Reaction equation

HRID 357211 reaction equation
[N:1]1[CH:2]=[CH:3][N:4]2[C:9]([S:10][CH2:11][CH2:12][CH2:13][CH2:14][N:15]3[C:19](=[O:20])[CH2:18][S:17][C:16]3=[O:21])=[CH:8][CH:7]=[CH:6][C:5]=12.[Cl:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[CH2:29][CH2:30][CH:31]=O.N1CCCCC1>C(O)C>[Cl:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[CH2:29][CH2:30][CH:31]=[C:18]1[S:17][C:16](=[O:21])[N:15]([CH2:14][CH2:13][CH2:12][CH2:11][S:10][C:9]2[N:4]3[CH:3]=[CH:2][N:1]=[C:5]3[CH:6]=[CH:7][CH:8]=2)[C:19]1=[O:20]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 189366943-[4-(Imidazo[1,2-a]pyridin-5-ylthio)butyl]thiazolidine-2,4-dioneHCID 218597263-(2-Chlorophenyl)propanal

Product 1

HCID 57112842HCID 57112842, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 964 mg (3.0 mmol) of 3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]thiazolidine-2,4-dione and 738 mg (4.4 mmol) of 3-(2-chlorophenyl)-1-propanal in 20 ml of ethanol, 26 mg (0.3 mmol) of piperidine was added, followed by refluxing for 4.5 hours. After the reaction mixture was cooled, the solvent was distilled off. The residue was dissolved in dichloromethane, washed with purified water and dried, after which the solvent was distilled off. The residue was purified by column chromatography (eluent, chloroform/methanol=50/1) to yield 1.37 g (96.5%, yellow oily substance) of the desired product.

Workup

  1. temperatureby refluxing for 4.5 hours
  2. temperatureAfter the reaction mixture was cooled
  3. distillationthe solvent was distilled off
  4. dissolutionThe residue was dissolved in dichloromethane
  5. washwashed with purified water
  6. customdried
  7. distillationafter which the solvent was distilled off
  8. customThe residue was purified by column chromatography (eluent, chloroform/methanol=50/1)

Sources & evidence

ORD record
ord-476175562cd34e7997dbb50bbb073228
Source dataset
uspto-grants-1998_11
Patent number
US05840732

Reaction notes

Loading…