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Isobutyraldehyde → Methyl 4-hydroxy-3,3-dimethyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate

HRID 2045564
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2045564
[N+:1]([C:4]1[CH:21]=[CH:20][C:7](/[CH:8]=[N:9]/[C:10]2[CH:19]=[CH:18][C:13]([C:14]([O:16][CH3:17])=[O:15])=[CH:12][CH:11]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2].[CH:22](=[O:26])[CH:23]([CH3:25])[CH3:24]>O1CCCC1.FC(F)(F)S([O-])(=O)=O.[Y+3].FC(F)(F)S([O-])(=O)=O.FC(F)(F)S([O-])(=O)=O>[OH:26][CH:22]1[C:19]2[C:10](=[CH:11][CH:12]=[C:13]([C:14]([O:16][CH3:17])=[O:15])[CH:18]=2)[NH:9][CH:8]([C:7]2[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:21][CH:20]=2)[C:23]1([CH3:25])[CH3:24]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 2

HCID 6561IsobutyraldehydeHCID 178498134HCID 178498134, Verbindung

Produkt 1

HCID 67443026Methyl 4-hydroxy-3,3-dimethyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylateAusbeute 20 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 2733939Yttrium trifluoromethanesulfonateKatalysator
HCID 8028
Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

To a solution of (E)-methyl 4-(4-nitrobenzylideneamino)benzoate (284 mg 1 mmol) and yttrium(III) trifluoromethanesulfonate (62 mg, 0.1 mmol) in tetrahydrofuran (5 mL) was added isobutyraldehyde (72 mg, 1.5 mmol). The resultant mixture was stirred at room temperature for 16 h. Thin layer chromatography showed the starting material was completely consumed. The reaction mixture was quenched with water and separated. The aqueous solution was extracted with dichloromethane and he combined organic layers were dried over anhydrous sodium sulfate. Solvent was removed in vacuo to give the crude product, which was purified by column chromatography (petroleum ether/ethyl acetate=3:1) to afford 70 mg of methyl 4-hydroxy-3,3-dimethyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate as a yellow solid. Yield: 20%.

Aufarbeitung

  1. customwas completely consumed
  2. customThe reaction mixture was quenched with water
  3. customseparated
  4. extractionThe aqueous solution was extracted with dichloromethane and he
  5. dry with materialwere dried over anhydrous sodium sulfate
  6. customSolvent was removed in vacuo
  7. customto give the crude product, which
  8. customwas purified by column chromatography (petroleum ether/ethyl acetate=3:1)

Quellen und Nachweise

ORD-Eintrag
ord-67d38f57154943889ffcc2654943dd1e
Quelldatensatz
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08586747B2

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