Dimethylformamide → ethyl 1-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-thiazol-2-yl]piperidine-4-carboxylate

HRID 2221992Notes

Reaction equation

HRID 2221992 reaction equation
[CH:1]([C:3]1[C:4]([O:14][CH2:15][C:16]2[CH:40]=[CH:39][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([N:28]4[CH2:33][CH2:32][CH:31]([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:30][CH2:29]4)[S:25][C:26]=3[CH3:27])=[C:18]([O:41][CH3:42])[CH:17]=2)=[N:5][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:7]=1)=O.[CH2:43](P(=O)(OCC)OCC)[P:44](=[O:51])([O:48][CH2:49][CH3:50])[O:45][CH2:46][CH3:47].CN(C)C=O.[H-].[Na+]>O>[CH2:46]([O:45][P:44](/[CH:43]=[CH:1]/[C:3]1[C:4]([O:14][CH2:15][C:16]2[CH:40]=[CH:39][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([N:28]4[CH2:29][CH2:30][CH:31]([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:32][CH2:33]4)[S:25][C:26]=3[CH3:27])=[C:18]([O:41][CH3:42])[CH:17]=2)=[N:5][N:6]([C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:7]=1)([O:48][CH2:49][CH3:50])=[O:51])[CH3:47]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 86605907ethyl 1-(4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-thiazol-2-yl}piperidine-4-carboxylate

Product 1

HCID 86605908ethyl 1-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-thiazol-2-yl]piperidine-4-carboxylateYield 78.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of ethyl 1-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-thiazol-2-yl}piperidine-4-carboxylate (0.30 g), tetraethyl methylenediphosphonate (0.16 g) and N,N-dimethylformamide (10 mL) was added sodium hydride (60% in oil, 25 mg) at room temperature. The mixture was stirred at room temperature for 2 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 ethyl 1-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-thiazol-2-yl]piperidine-4-carboxylate as a colorless oil (0.29 g, yield 78%) from a fraction eluted with ethyl acetate-hexane (9:1, v/v).

Workup

  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

Sources & evidence

ORD record
ord-4cd7ae529d194cd582eeb6a5ddc939fe
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

Loading…