Potassium Iodide → HCID 12298024, compound

HRID 1448315Notes

Reaction equation

HRID 1448315 reaction equation
Br[CH2:2][CH:3]1[CH2:5][CH2:4]1.[O:6]=[C:7]([N:10]([C:17]1([C:23]([O:25][CH3:26])=[O:24])[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]1)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[CH2:8][CH3:9].[C:27](=[O:30])([O-:29])[O-].[Na+].[Na+].[I-].[K+]>CC1C=CC=CC=1>[C:23]([OH:25])(=[O:24])[C:27]([OH:29])=[O:30].[CH:5]1([CH2:4][N:20]2[CH2:21][CH2:22][C:17]([N:10]([C:7](=[O:6])[CH2:8][CH3:9])[C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=3)([C:23]([O:25][CH3:26])=[O:24])[CH2:18][CH2:19]2)[CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 4875Potassium IodideHCID 10340Sodium CarbonateHCID 81503BromomethylcyclopropaneHCID 2724431Methyl 4-[phenyl(propanoyl)amino]piperidine-4-carboxylate

Product 1

HCID 12298024HCID 12298024, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A mixture of 4.5 parts of (bromomethyl)cyclopropane, 4.8 parts of methyl 4-[N-(1-oxopropyl)-N-phenylamino]-4-piperidinecarboxylate, 5 parts of sodium carbonate, 0.3 parts of potassium iodide and 63 parts of methylbenzene is stirred and refluxed for 4 h. The reaction mixture is cooled and filtered. The filtrate is washed with water, dried, filtered and evaporated. The oily residue is dissolved in petroleumether. The solution is filtered and the filtrate is evaporated. The oily residue is purified by column-chromatography over silicagel using a mixture of trichloromethane and 10% of methanol as eluent. The pure fractions are collected and the eluent is evaporated. The residue is converted into the ethanedioate salt in 2-propanone. The salt is filtered off and dried, yielding methyl 1-(cyclopropylmethyl)-4-[N-(1-oxopropyl)-N-phenylamino]-4-piperidinecarboxylate ethanedioate; mp. 171.4° C.

Workup

  1. temperaturerefluxed for 4 h
  2. temperatureThe reaction mixture is cooled
  3. filtrationfiltered
  4. washThe filtrate is washed with water
  5. customdried
  6. filtrationfiltered
  7. customevaporated
  8. dissolutionThe oily residue is dissolved in petroleumether
  9. filtrationThe solution is filtered
  10. customthe filtrate is evaporated
  11. customThe oily residue is purified by column-chromatography over silicagel
  12. additiona mixture of trichloromethane and 10% of methanol as eluent
  13. customThe pure fractions are collected
  14. customthe eluent is evaporated
  15. filtrationThe salt is filtered off
  16. customdried

Sources & evidence

ORD record
ord-7ec023120c94456daa3c586f29a0057f
Source dataset
uspto-grants-1979_12
Patent number
US04179569

Reaction notes

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