Potassium Carbonate → 1-(3-Butynyl)-4-(4-chlorophenyl)-4-hydroxypiperidine

HRID 324533Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 324533
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([OH:14])[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:4]([N:11]1[CH2:10][CH2:9][C:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)([OH:14])[CH2:13][CH2:12]1)[CH2:3][C:2]#[CH:7]

Komponenten

4

Edukt 2

HCID 11430Potassium CarbonateHCID 382824-(4-Chlorophenyl)-4-hydroxypiperidine

Produkt 1

HCID 222257381-(3-Butynyl)-4-(4-chlorophenyl)-4-hydroxypiperidineAusbeute 145,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A mixutre of 3-butyn-1-methanesulfate (1.48 g, 0.01 mol), 4-(p-chlorophenyl)-4-hydroxypiperidine (2.54 g, 0.012 mol) and potassium carbonate (4.14 g, 0.03 mol) in 25 mL of acetonitrile was refluxed for 12 hrs. The mixture was filtered and washed with ethyl acetate (3×30 mL). The filtrate was evaporated in vacuo and was purified by flash chromatography to give 2.30 g (87%) of the product as a white solid. mp 98-100° C. 1H NMR (CHCl3) 1.550 (s, 1 H), 1.749 (m, 2 H), 1.997 (m, 1 H), 2.109 (m, 2 H), 2.423 (m, 4 H), 2.655 (m, 2 H), 2.798 (m, 2 H), 7.329 (d, J=7.2 Hz, 2 H), 7.429 (d, J=7.2 Hz, 2 H).

Aufarbeitung

  1. filtrationThe mixture was filtered
  2. washwashed with ethyl acetate (3×30 mL)
  3. customThe filtrate was evaporated in vacuo
  4. customwas purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-a20d98fdbc614b749c5cf7f644d6bc42
Quelldatensatz
uspto-grants-2001_04
Patentnummer
US06218404B1

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