Trifluoroacetic acid → 1-(6-Chloro-pyridin-3-yl)-homopiperazine

HRID 2182272

Reaktionsgleichung

Reaktionsgleichung von HRID 2182272
[Cl:1][C:2]1[N:7]=[CH:6][C:5]([N:8]2[CH2:14][CH2:13][CH2:12][N:11](C(OC(C)(C)C)=O)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.FC(F)(F)C(O)=O>ClCCl>[Cl:1][C:2]1[N:7]=[CH:6][C:5]([N:8]2[CH2:14][CH2:13][CH2:12][NH:11][CH2:10][CH2:9]2)=[CH:4][CH:3]=1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 224784871-(6-Chloro-3-pyridyl)-4-tert-butoxycarbonyl homopiperazine

Produkt 1

HCID 98343281-(6-Chloro-pyridin-3-yl)-homopiperazine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A mixture of 1-(6-chloro-3-pyridyl)-4-tert-butoxycarbonyl homopiperazine (1.7 g, 5.5 mmol), trifluoro acetic acid (4.5 ml, 55 mmol) and dichloromethane at room temperature for 1 h. The mixture was evaporated. Chromatography on silica gel with a mixture of petroleum:ethyl acetate (1:1) gave the title compound as free base. The corresponding salt was obtained by addition of a diethyl ether and methanol mixture (9:1) saturated with fumaric acid. Mp 165-167° C. Yield 0.72 g, 40%.

Aufarbeitung

  1. customThe mixture was evaporated
  2. additionChromatography on silica gel with a mixture of petroleum:ethyl acetate (1:1)

Quellen und Nachweise

ORD-Eintrag
ord-532c6dee55e74cd18a41f49d2f5e80ba
Quelldatensatz
uspto-grants-2005_05
Patentnummer
US06897219B2

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