4-Methylbenzenethiol → (+/-)-1-(t-Butoxycarbonyl)-2-[4-(p-toluenesulfonyl)-2-oxobutyl]pyrrolidine

HRID 9886

반응식

HRID 9886 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[CH2:13][C:14](=[O:17])[CH:15]=[CH2:16])=[O:7])([CH3:4])([CH3:3])[CH3:2].CC1C=CC(S)=CC=1.Cl[C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([C:33](OO)=O)[CH:28]=1.[S:37]([O-])([O-:40])(=[O:39])=S.[Na+].[Na+].C(=O)([O-])O.[Na+]>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[CH2:13][C:14](=[O:17])[CH2:15][CH2:16][S:37]([C:32]1[CH:31]=[CH:30][C:29]([CH3:33])=[CH:28][CH:27]=1)(=[O:40])=[O:39])=[O:7])([CH3:4])([CH3:3])[CH3:2]

참가 물질

7

반응물 5

HCID 78114-MethylbenzenethiolHCID 24477Sodium ThiosulfateHCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 21988503Tert-butyl 2-(2-oxobut-3-EN-1-YL)pyrrolidine-1-carboxylate

생성물 1

HCID 21988484(+/-)-1-(t-Butoxycarbonyl)-2-[4-(p-toluenesulfonyl)-2-oxobutyl]pyrrolidine수율 94%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

(±)-1-(t-Butoxycarbonyl)-2-(2-oxo-3-butenyl)pyrrolidine (206 mg (10.86 mmol), prepared as described in Reference example 1–2)) was dissolved in tetrahydrofuran (2 ml). To the solution was added 4-methylthiophenol (107 mg, 0.86 mmol), and the resulting mixture was stirred at room temperature for 2 hours. At the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure, and the resulting residue was dissolved in dichloromethane (2 ml). To the resulting mixture was added 70 wt % m-chloroperbenzoic acid (468 mg, 1.894 mmol) by portions under ice cooling, and the resulting mixture was stirred at room temperature for 2 hours. To the mixture were added an aqueous solution of 10% sodium thiosulfate and a saturated aqueous solution of sodium hydrogencarbonate in that order, and the resulting mixture was stirred and extracted with dichloromethane. The organic layer was washed with water, dried over anhydrous magnesium sulfate and the solvent was removed by distillation under reduced pressure, to give the title compound (322 mg) as a colorless oil (yield 94%).

후처리

  1. concentrationAt the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure
  2. dissolutionthe resulting residue was dissolved in dichloromethane (2 ml)
  3. stirringthe resulting mixture was stirred at room temperature for 2 hours
  4. extractionextracted with dichloromethane
  5. washThe organic layer was washed with water
  6. dry with materialdried over anhydrous magnesium sulfate
  7. customthe solvent was removed by distillation under reduced pressure

출처 및 근거

ORD 기록
ord-82f6431d8ef44e6fb7bc43c55597e2a3
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07091352B2

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