1-(5-Nitropyridin-2-yl)piperazine → HCID 25004371, Verbindung

HRID 72678Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 72678
Cl[C:2]1[N:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:5]=[C:4]([C:12]2[CH:13]=[C:14]([S:18]([NH2:21])(=[O:20])=[O:19])[CH:15]=[CH:16][CH:17]=2)[C:3]=1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[N+:28]([C:31]1[CH:32]=[CH:33][C:34]([N:37]2[CH2:42][CH2:41][NH:40][CH2:39][CH2:38]2)=[N:35][CH:36]=1)([O-:30])=[O:29]>N1C=CC=CC=1>[N+:28]([C:31]1[CH:32]=[CH:33][C:34]([N:37]2[CH2:38][CH2:39][N:40]([C:2]3[N:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:5]=[C:4]([C:12]4[CH:13]=[C:14]([S:18]([NH2:21])(=[O:20])=[O:19])[CH:15]=[CH:16][CH:17]=4)[C:3]=3[C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[CH2:41][CH2:42]2)=[N:35][CH:36]=1)([O-:30])=[O:29]

Komponenten

4

Versuchsvorschrift

The solution of 3-[6-chloro-5-phenyl-2-(trifluoromethyl)pyrimidin-4-yl]benzenesulfonamide (0.1 g, 0.242 mmol) in pyridine (2 ml) was treated with 1-(5-nitropyridin-2-yl)piperazine (0.075 g, 0.363 mmol) and stirred for 11 hours. Subsequently the reaction mixture was poured onto ice-cold water and extracted with ethyl acetate (25 ml). The organic layer was washed with brine and evaporated to give the crude material. Purification by column chromatography (elution with 70% ethyl acetate in hexane) yielded the title compound. 1H-NMR (CDCl3) δ: 3.45-3.46 (m, 4H), 3.72 (m, 4H), 6.52-6.54 (d, 1H), 7.08-7.11 (d, 2H), 7.21-7.26 (m, 2H), 7.32-7.34 (d, 1H), 7.40-7.42 (d, 1H), 7.50 (m, 1H), 7.68 (s, 1H), 7.84-7.89 (m, 1H), 8.21-8.23 (d, 1H), 8.99 (s, 1H); MS m/z: 585.8 (M+).

Aufarbeitung

  1. additionSubsequently the reaction mixture was poured onto ice-cold water
  2. extractionextracted with ethyl acetate (25 ml)
  3. washThe organic layer was washed with brine
  4. customevaporated
  5. customto give the crude material
  6. customPurification
  7. washby column chromatography (elution with 70% ethyl acetate in hexane)

Quellen und Nachweise

ORD-Eintrag
ord-c71cebf072604b6681de1c00a59ebdd7
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08828999B2

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