Triethylamine → 1-[5,5-Bis(4-fluorophenyl)-4-pentenyl]-4-(phenylmethyl)-2-piperazinecarboxamide

HRID 1494629Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1494629
Br[CH2:2][CH2:3][CH2:4][CH:5]=[C:6]([C:14]1[CH:19]=[CH:18][C:17]([F:20])=[CH:16][CH:15]=1)[C:7]1[CH:12]=[CH:11][C:10]([F:13])=[CH:9][CH:8]=1.[C:21]1([CH2:27][N:28]2[CH2:33][CH2:32][NH:31][CH:30]([C:34]([NH2:36])=[O:35])[CH2:29]2)[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.C(N(CC)CC)C>CN(C)C=O>[F:13][C:10]1[CH:11]=[CH:12][C:7]([C:6]([C:14]2[CH:19]=[CH:18][C:17]([F:20])=[CH:16][CH:15]=2)=[CH:5][CH2:4][CH2:3][CH2:2][N:31]2[CH2:32][CH2:33][N:28]([CH2:27][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[CH2:29][CH:30]2[C:34]([NH2:36])=[O:35])=[CH:8][CH:9]=1

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 142302664-Benzylpiperazine-2-carboxamideHCID 147225505-Bromo-1,1-bis-(4-fluorophenyl)pent-1-ene

Produkt 1

HCID 198284451-[5,5-Bis(4-fluorophenyl)-4-pentenyl]-4-(phenylmethyl)-2-piperazinecarboxamideAusbeute 61,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A mixture of 74.2 parts of 1,1'-(5-bromo-1-penten-1-ylidene)bis[4-fluorobenzene], 43.8 parts of 4-(phenylmethyl)-2-piperazinecarboxamide, 38.9 parts of N,N-diethylethanamine and 1350 parts of N,N-dimethylformamide was stirred for 20 hours at 70° C. The reaction mixture was evaporated in vacuo and the residue was stirred in dichloromethane. The precipitate was filtered off. The filtrate was washed three times with 200 parts of water and once with 200 parts of a diluted ammonium hydroxide solution, dried, filtered and evaporated. The residue was purified by column chromatography over silical gel using a mixture of trichloromethane and methanol (97:3 by volume) as eluent. The pure fractions were collected and the eluent was evaporated, yielding 58.9 parts (61.9%) of 1-[5,5-bis(4-fluorophenyl)-4-pentenyl]-4-(phenylmethyl)-2-piperazinecarboxamide as a residue (int. 33).

Aufarbeitung

  1. customThe reaction mixture was evaporated in vacuo
  2. stirringthe residue was stirred in dichloromethane
  3. filtrationThe precipitate was filtered off
  4. washThe filtrate was washed three times with 200 parts of water
  5. dry with materialonce with 200 parts of a diluted ammonium hydroxide solution, dried
  6. filtrationfiltered
  7. customevaporated
  8. customThe residue was purified by column chromatography over silical gel
  9. additiona mixture of trichloromethane and methanol (97:3 by volume) as eluent
  10. customThe pure fractions were collected
  11. customthe eluent was evaporated

Quellen und Nachweise

ORD-Eintrag
ord-c8cfe97ba2ee4f9eb5e94067af3f8e7a
Quelldatensatz
uspto-grants-1991_06
Patentnummer
US05026853

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