Water → Ethyl 4-(piperidin-1-yl)benzoate

HRID 1251327

Reaktionsgleichung

Reaktionsgleichung von HRID 1251327
F[C:2]1[CH:12]=[CH:11][C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])=[CH:4][CH:3]=1.[NH:13]1[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]1.O>C(#N)C>[N:13]1([C:2]2[CH:12]=[CH:11][C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])=[CH:4][CH:3]=2)[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]1

Komponenten

5

Edukt 3

HCID 962WaterHCID 8082PiperidineHCID 67976Benzoic acid, 4-fluoro-, ethyl ester

Produkt 1

HCID 13813852Ethyl 4-(piperidin-1-yl)benzoate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

Reaction of ethyl 4-fluorobenzoate with piperidine (3 equivalents) in acetonitrile may be carried out at reflux for 4 days. Dilution of the cooled reaction mixture with several volumes of water provides a precipitate, which may be filtered to provide ethyl 4-(piperidin-1-yl)benzoate. Reduction of the ester with lithium aluminum hydride (2 equivalents) in tetrahydrofuran provides the corresponding alcohol.

Aufarbeitung

  1. temperatureat reflux for 4 days
  2. customprovides a precipitate, which
  3. filtrationmay be filtered

Quellen und Nachweise

ORD-Eintrag
ord-6cb6799b4a764d3fac9df5a1d191f153
Quelldatensatz
uspto-grants-2002_01
Patentnummer
US06342497B1

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