Dimethylformamide → HCID 86605930, compound

HRID 2222025Notes

Reaction equation

HRID 2222025 reaction equation
Cl[CH2:2][C:3]1[CH:28]=[CH:27][C:6]([O:7][CH2:8][C:9]2[N:10]=[C:11]([C:15]3[CH:20]=[CH:19][C:18]([CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:17][CH:16]=3)[O:12][C:13]=2[CH3:14])=[C:5]([O:29][CH3:30])[CH:4]=1.Cl.[CH2:32]([C:34]1[O:35][CH:36]=[C:37](/[CH:39]=[CH:40]/[C:41]2[C:42]([OH:52])=[N:43][N:44]([C:46]3[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=3)[CH:45]=2)[N:38]=1)[CH3:33].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:32]([C:34]1[O:35][CH:36]=[C:37](/[CH:39]=[CH:40]/[C:41]2[C:42]([O:52][CH2:2][C:3]3[CH:28]=[CH:27][C:6]([O:7][CH2:8][C:9]4[N:10]=[C:11]([C:15]5[CH:20]=[CH:19][C:18]([CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:17][CH:16]=5)[O:12][C:13]=4[CH3:14])=[C:5]([O:29][CH3:30])[CH:4]=3)=[N:43][N:44]([C:46]3[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=3)[CH:45]=2)[N:38]=1)[CH3:33]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 86605724Ethyl (4-{4-[(4-chloromethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}phenyl)acetateHCID 178437611HCID 178437611, compound

Product 1

HCID 86605930HCID 86605930, compoundYield 21.1%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of ethyl (4-{4-[(4-chloromethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}phenyl)acetate (1.48 g), 4-[(E)-2-(2-ethyl-1,3-oxazol-4-yl)ethenyl]-1-phenyl-1H-pyrazol-3-ol.hydrochloride (1.07 g), potassium carbonate (1.05 g) and N,N-dimethylformamide (30 mL) was stirred at 90° C. for 2 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate-tetrahydrofuran. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography and eluted with acetone-hexane (1:5-1:4-1:3, v/v) to give ethyl {4-[4-({4-[({4-[(E)-2-(2-ethyl-1,3-oxazol-4-yl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]phenyl}acetate (480 mg, yield 20%) as colorless crystals. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 155-157° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate-tetrahydrofuran
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. washeluted with acetone-hexane (1:5-1:4-1:3

Sources & evidence

ORD record
ord-05ae9dfee8794e69b2330e25a8f5c9ee
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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