Potassium Carbonate → HCID 11529282, compound

HRID 1070703Notes

Reaction equation

HRID 1070703 reaction equation
[CH3:1][S:2]([C:5]1[CH:6]=[C:7]([N:11]2[CH2:16][CH2:15][NH:14][CH2:13][CH2:12]2)[CH:8]=[CH:9][CH:10]=1)(=[O:4])=[O:3].C([O-])([O-])=O.[K+].[K+].I[CH2:24][CH2:25][CH3:26]>CC#N>[CH3:1][S:2]([C:5]1[CH:6]=[C:7]([N:11]2[CH2:16][CH2:15][N:14]([CH2:24][CH2:25][CH3:26])[CH2:13][CH2:12]2)[CH:8]=[CH:9][CH:10]=1)(=[O:3])=[O:4]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 336431-IodopropaneHCID 129889541-(3-(Methylsulfonyl)phenyl)piperazine

Product 1

HCID 11529282HCID 11529282, compound

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A suspension of 1-(3-methanesulfonyl-phenyl)-piperazine (350 mg) and ground K2CO3 (403 mg) was stirred in CH3CN (25 mL) at room temperature. 1-Iodo-propane (712 μL) was added. The mixture was refluxed overnight. The reaction mixture was filtered and the volatiles were evaporated in vacuum. The oily residue was chromatographed on a silica column with MeOH:CH2Cl2 (1:30 (v/v)) as eluent. Collection of the fractions containing pure product and evaporation of the solvent afforded pure 1-(3-methanesulfonyl-phenyl)-4-propyl-piperazine (220 mg). The amine was converted into the HCl salt and recrystallized from ethanol/diethylether: m.p. 233° C. MS m/z (relative intensity, 70 eV) 282 (M+, 30), 254 (15), 253 (bp), 210 (17), 70 (21).

Workup

  1. temperatureThe mixture was refluxed overnight
  2. filtrationThe reaction mixture was filtered
  3. customthe volatiles were evaporated in vacuum
  4. customThe oily residue was chromatographed on a silica column with MeOH:CH2Cl2 (1:30 (v/v)) as eluent
  5. customCollection of the fractions
  6. additioncontaining pure
  7. customproduct and evaporation of the solvent

Sources & evidence

ORD record
ord-335e812a8ef140b88ccba3227b9af2bb
Source dataset
uspto-grants-2005_06
Patent number
US06903120B2

Reaction notes

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