Dimethylformamide → diethyl (E)-2-{3-[(3-methoxy-4-{[5-methyl-2-(piperidin-1-yl)-1,3-thiazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}ethenylphosphonate

HRID 2221883Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2221883
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][C:23]=1[O:24][CH2:25][C:26]1[N:27]=[C:28]([N:32]2[CH2:37][CH2:36][CH2:35][CH2:34][CH2:33]2)[S:29][C:30]=1[CH3:31])[CH2:6][O:7][C:8]1[C:12]([CH:13]=O)=[CH:11][N:10]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:9]=1.[CH2:38](P(=O)(OCC)OCC)[P:39](=[O:46])([O:43][CH2:44][CH3:45])[O:40][CH2:41][CH3:42].CN(C)C=O.[H-].[Na+]>O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][C:23]=1[O:24][CH2:25][C:26]1[N:27]=[C:28]([N:32]2[CH2:37][CH2:36][CH2:35][CH2:34][CH2:33]2)[S:29][C:30]=1[CH3:31])[CH2:6][O:7][C:8]1[C:12](/[CH:13]=[CH:38]/[P:39](=[O:46])([O:43][CH2:44][CH3:45])[O:40][CH2:41][CH3:42])=[CH:11][N:10]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[N:9]=1

Komponenten

6

Edukt 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 230764293-({3-methoxy-4-[(5-methyl-2-piperidin-1-yl-1,3-thiazol-4-yl)methoxy]benzyl}oxy)-1-phenyl-1H-pyrazole-4-carbaldehyde

Produkt 1

HCID 86605830diethyl (E)-2-{3-[(3-methoxy-4-{[5-methyl-2-(piperidin-1-yl)-1,3-thiazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}ethenylphosphonateAusbeute 58,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a mixture of 3-[(3-methoxy-4-{[5-methyl-2-(piperidin-1-yl)-1,3-thiazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazole-4-carbaldehyde (0.15 g), tetraethyl methylenediphosphonate (0.09 g) and N,N-dimethylformamide (5 mL) was added sodium hydride (60% in oil, 0.015 g) at room temperature, and the mixture was stirred at the same temperature for 15 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give diethyl (E)-2-{3-[(3-methoxy-4-{[5-methyl-2-(piperidin-1-yl)-1,3-thiazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}ethenylphosphonate as colorless crystals (0.11 g, yield 58%) from a fraction eluted with ethyl acetate-hexane (4:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 95-96° C.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-992207e0f97d477f9179e0b67077d6d8
Quelldatensatz
uspto-grants-2008_05
Patentnummer
US07368578B2

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