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Methanol → (S)-2-(3-phenoxy-phenyl)-pyrrolidine

HRID 222503
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HRID 222503 반응식
C1([SiH3])C=CC=CC=1.N1CCCC1.CO.[O:15]([C:22]1[CH:23]=[C:24]([C:28]2[CH2:29][CH2:30][CH2:31][N:32]=2)[CH:25]=[CH:26][CH:27]=1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>C1COCC1>[O:15]([C:22]1[CH:23]=[C:24]([C@@H:28]2[CH2:29][CH2:30][CH2:31][NH:32]2)[CH:25]=[CH:26][CH:27]=1)[C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1
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참가 물질

6

반응물 4

HCID 887MethanolHCID 12752PhenylsilaneHCID 31268PyrrolidineHCID 597880425-(3-phenoxy-phenyl)-3,4-dihydro-2H-pyrrole

생성물 1

HCID 59787976(S)-2-(3-phenoxy-phenyl)-pyrrolidine수율 48%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To oven dried round bottom flask is added S,S-EBTHITiF2 (100 mgs, 0.3 mmol) and diluted with THF (5 mL). The flask is sealed and purged with argon. To the yellow solution is added phenylsilane (4.6 mL, 37.5 mmol), pyrrolidine (100 uL, 1.1 mmol), and anhydrous methanol (100 uL, 1.1 mmol). The resulting yellow mixture is stirred for 45 minutes until green color persisted. A solution of 5-(3-phenoxy-phenyl)-3,4-dihydro-2H-pyrrole (1.2 g, 5.05 mmol) in THF (2 mL) is added to the catalyst and the mixture is stirred for 8 hrs. The reaction is carefully quenched with 10% HCl (100 mL) until gas evolution subsided and the pH˜2. The mixture is diluted with EtOAc (100 mL) and the aqueous layer is removed, neutralized with 3M NaOH (50 mL) until basic and extracted with EtOAc (3×100 mL). The organics were combined, dried over Na2SO4, filtered and concentrated under reduced pressures. The solid residue is purified by silica gel column chromatography (100% EtOAc) to give (S)-2-(3-phenoxy-phenyl)-pyrrolidine as a yellow solid (580 mgs, 48%). LCMS m/z 240.1 (M+1).

후처리

  1. customTo oven dried round bottom flask
  2. additionis added
  3. addition(100 mgs, 0.3 mmol) and diluted with THF (5 mL)
  4. customThe flask is sealed
  5. custompurged with argon
  6. stirringthe mixture is stirred for 8 hrs
  7. customThe reaction is carefully quenched with 10% HCl (100 mL) until gas evolution
  8. additionThe mixture is diluted with EtOAc (100 mL)
  9. customthe aqueous layer is removed
  10. extractionextracted with EtOAc (3×100 mL)
  11. dry with materialdried over Na2SO4
  12. filtrationfiltered
  13. concentrationconcentrated under reduced pressures
  14. customThe solid residue is purified by silica gel column chromatography (100% EtOAc)

출처 및 근거

ORD 기록
ord-955378c9f9a54c458ec920080a5ab5fc
출처 데이터셋
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08207183B2

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