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2,2,2-Trichloroethyl chloroformate → [(3RS,4SR)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester

HRID 910456
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 910456
[C:1]([O:5][C:6](=[O:29])[N:7]([CH:9]1[CH:13]([C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[C:16]([Cl:21])[CH:15]=2)[CH2:12][N:11](CC2C=CC=CC=2)[CH2:10]1)[CH3:8])([CH3:4])([CH3:3])[CH3:2].ClC(OCC(Cl)(Cl)Cl)=O>CC#N>[C:1]([O:5][C:6](=[O:29])[N:7]([CH:9]1[CH:13]([C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[C:16]([Cl:21])[CH:15]=2)[CH2:12][NH:11][CH2:10]1)[CH3:8])([CH3:4])([CH3:2])[CH3:3]
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Komponenten

4

Edukt 2

HCID 870632,2,2-Trichloroethyl chloroformateHCID 67025859[(3RS,4SR)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester

Produkt 1

HCID 67025572[(3RS,4SR)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl esterAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a stirred solution of [(3RS,4SR)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (928 mg, 2.13 mmol) in CH3CN (10 ml) at RT, was added 2,2,2-trichloroethyl chloroformate (0.45 ml, 2.13 mmol). The reaction mixture was stirred at RT for 3 hours, concentrated under vacuo. The residue was dissolved in AcOH (5 ml) and zinc dust (400 mg) was added portion wise over 1 hours. The solvent was evaporated, the residue diluted in EtOAc and the organic phase was washed with an aqueous solution of NaHCO3. The organic phase was dried over Na2SO4 and concentrated under vacuo to afford 415 mg (98%) of the tile compound as a light yellow oil. ES-MS m/e: 345.2 (m+H+),

Aufarbeitung

  1. concentrationconcentrated under vacuo
  2. dissolutionThe residue was dissolved in AcOH (5 ml)
  3. additionzinc dust (400 mg) was added portion wise over 1 hours
  4. customThe solvent was evaporated
  5. additionthe residue diluted in EtOAc
  6. washthe organic phase was washed with an aqueous solution of NaHCO3
  7. dry with materialThe organic phase was dried over Na2SO4
  8. concentrationconcentrated under vacuo

Quellen und Nachweise

ORD-Eintrag
ord-56dc1538274844508d071da83fcf1b41
Quelldatensatz
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08022099B2

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