2-Phenylquinoline → 2-Phenyl-5,6,7,8-tetrahydroquinoline

HRID 353361

Reaktionsgleichung

[C:1]1([C:7]2[CH:16]=[CH:15][C:14]3[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=3)[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>C(O)(C(F)(F)F)=O.O=[Pt]=O>[C:1]1([C:7]2[CH:16]=[CH:15][C:14]3[CH2:13][CH2:12][CH2:11][CH2:10][C:9]=3[N:8]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Komponenten

Reaktionsbedingungen

Temperatur: 60 °C

Versuchsvorschrift

To a vigorously stirred solution of 2-phenylquinoline (6.0 g, 29 mmol) in TFA (30 mL) in a 250 mL round-bottomed flask under nitrogen was added PtO2 (332 mg, 1.5 mmol) in one portion. The resulting mixture was then placed under a hydrogen atmosphere (H2 flush for 5 min, then H2 balloon with a wide-bore needle) and heated to 60° C. Stirring was continued for 5 h, at which time GLC analysis indicated all of the starting material was consumed. The reaction was cooled to room temperature and the TFA was evaporated in vacuo. The residue was rendered basic with a minimum amount of 4 N NaOH and extracted with CHCl3 (3×50 mL), dried (MgSO4) and concentrated in vacuo. Purification of the residue by flash chromatography (silica gel, hexane/EtOAc 10:1) afforded 4.85 g of 2-phenyl-5,6,7,8-tetrahydroquinoline (80% yield).

Aufarbeitung

customflush for 5 min
customwas consumed
temperatureThe reaction was cooled to room temperature
customthe TFA was evaporated in vacuo
extractionextracted with CHCl3 (3×50 mL)
dry with materialdried (MgSO4)
concentrationconcentrated in vacuo
customPurification of the residue by flash chromatography (silica gel, hexane/EtOAc 10:1)

Quellen und Nachweise

ORD-Eintrag: ord-c9161476414241ccbbedf7c9f85dc7f2
Quelldatensatz: uspto-grants-2004_06
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US06750348B1

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