Nitrogen → N-(piperidin-1-yl)-1-(4-chlorophenyl)-5-phenyl-4,5-dihydro-(1H)-pyrazole-3-carboxamide

HRID 19758

Reaktionsgleichung

Reaktionsgleichung von HRID 19758
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[CH2:11][C:10]([C:19](O)=[O:20])=[N:9]2)=[CH:4][CH:3]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)[C:33]2[CH:34]=[CH:35][CH:36]=C[C:32]=2[N:31]=[N:30]1.NN1CCCCC1.N#N>C(#N)C>[N:31]1([NH:30][C:19]([C:10]2[CH2:11][CH:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[N:8]([C:5]3[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=3)[N:9]=2)=[O:20])[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32]1

Komponenten

6

Edukt 4

HCID 947NitrogenHCID 166581-AminopiperidineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 237308081-(4-Chlorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid

Produkt 1

HCID 11646653N-(piperidin-1-yl)-1-(4-chlorophenyl)-5-phenyl-4,5-dihydro-(1H)-pyrazole-3-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

Part D: To a stirred suspension of 1-(4-chlorophenyl)-5-phenyl-4,5-dihydro-(1H)-pyrazole-3-carboxylic acid (1.50 gram, 5 mmol) in anhydrous acetonitrile (40 ml) is successively added N-diisopropylethylamine (DIPEA) (1.92 ml, 11 mmol), O-benzotriazol-1-yl-N,N, N′,N′-tetramethyluronium hexafluorophosphate (HBTU) (2.08 g, 5.5 mmol) and 1-aminopiperidine (0.59 ml, 5.5 mmol) and the resulting mixture is reacted at room temperature for 16 hours in a N2 atmosphere. The mixture is concentrated and added to a mixture of ethyl acetate and aqueous NaHCO3. The Ethyl acetate layer is collected, dried over MgSO4, filtered and concentrated in vacuo. The resulting residue is recrystallised from acetonitrile to give N-(piperidin-1-yl)-1-(4-chlorophenyl)-5-phenyl-4,5-dihydro-(1H)-pyrazole-3-carboxamide (compound 1), 1.34 gram, 70% yield). Melting point: 189-192° C.

Aufarbeitung

  1. concentrationThe mixture is concentrated
  2. additionadded to a mixture of ethyl acetate and aqueous NaHCO3
  3. customThe Ethyl acetate layer is collected
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe resulting residue is recrystallised from acetonitrile

Quellen und Nachweise

ORD-Eintrag
ord-4c9dd9087c4b4a4b892f5151baa6d2c4
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07745476B2

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