Potassium Carbonate → HCID 178427383, compound

HRID 1357119Notes

Reaction equation

HRID 1357119 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[N:12]([S:13]([C:16]3[CH:21]=[CH:20][C:19]([CH3:22])=[CH:18][CH:17]=3)(=[O:15])=[O:14])[CH:11]([C:23]#[N:24])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].Cl.[NH2:32][OH:33]>CCO>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]2[N:12]([S:13]([C:16]3[CH:17]=[CH:18][C:19]([CH3:22])=[CH:20][CH:21]=3)(=[O:15])=[O:14])[CH:11]([C:23]([NH:32][OH:33])=[NH:24])[CH2:10][CH2:9]2)=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 443297Hydroxyamine hydrochlorideHCID 22250432(2RS,5SR)-5-(4-Fluoro-phenyl)-1-(toluene-4-sulfonyl)-pyrrolidine-2-carbonitrile

Product 1

HCID 178427383HCID 178427383, compoundYield 38.2%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a stirred suspension of (2RS,5SR)-5-(4-fluoro-phenyl)-1-(toluene-4-sulfonyl)-pyrrolidine-2-carbonitrile (0.74 g, 2.15 mmol) in EtOH (25 ml) was added potassium carbonate (0.89 g, 6.45 mmol) and hydroxylamine hydrochloride (0.30 g, 4.30 mmol). The reaction mixture was heated under reflux conditions for 18 h, the formed precipitate collected, washed with dichloromethane/methanol. The organic solvents were evaporated and the crude product purified by column chromatography on silica gel (ethyl acetate/hexane 3:2). Crystallization from diethyl ether/methanol yielded the title compound (0.31 g, yield 38%) as a white solid, m.p. 217° C. and MS: m/e=378.3 (M+H+).

Workup

  1. temperatureThe reaction mixture was heated under reflux conditions for 18 h
  2. customthe formed precipitate collected
  3. washwashed with dichloromethane/methanol
  4. customThe organic solvents were evaporated
  5. customthe crude product purified by column chromatography on silica gel (ethyl acetate/hexane 3:2)
  6. customCrystallization from diethyl ether/methanol

Sources & evidence

ORD record
ord-da48c16fc62c4aefa6cd89bcc04afc63
Source dataset
uspto-grants-2003_07
Patent number
US06589978B2

Reaction notes

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