Hydrochloric Acid → 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-ethyl-1,3-oxazol-2-yl]-2-methylbenzoic acid

HRID 2221988Notes

Reaction equation

HRID 2221988 reaction equation
[CH2:1]([O:3][P:4](/[CH:9]=[CH:10]/[C:11]1[C:12]([O:22][CH2:23][C:24]2[CH:48]=[CH:47][C:27]([O:28][CH2:29][C:30]3[N:31]=[C:32]([C:36]4[CH:37]=[CH:38][C:39]([CH3:46])=[C:40]([CH:45]=4)[C:41]([O:43]C)=[O:42])[O:33][C:34]=3[CH3:35])=[C:26]([O:49][CH3:50])[CH:25]=2)=[N:13][N:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:15]=1)([O:6][CH2:7][CH3:8])=[O:5])[CH3:2].O1CCC[CH2:52]1.[OH-].[Na+].Cl>O.C(O)C>[CH2:1]([O:3][P:4](/[CH:9]=[CH:10]/[C:11]1[C:12]([O:22][CH2:23][C:24]2[CH:48]=[CH:47][C:27]([O:28][CH2:29][C:30]3[N:31]=[C:32]([C:36]4[CH:37]=[CH:38][C:39]([CH3:46])=[C:40]([CH:45]=4)[C:41]([OH:43])=[O:42])[O:33][C:34]=3[CH2:35][CH3:52])=[C:26]([O:49][CH3:50])[CH:25]=2)=[N:13][N:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:15]=1)([O:6][CH2:7][CH3:8])=[O:5])[CH3:2]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86605903methyl 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]-2-methylbenzoate

Product 1

HCID 866059045-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-ethyl-1,3-oxazol-2-yl]-2-methylbenzoic acidYield 87%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 962WaterSolvent

Conditions

Temperature
60 °C

Procedure

To a mixture of methyl 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]-2-methylbenzoate (0.46 g), tetrahydrofuran (2 mL) and ethanol (2 mL) was added 1N aqueous sodium hydroxide solution (2 mL), and the mixture was stirred at 60° C. for 1 hr. To the reaction mixture were added 1N hydrochloric acid (2 mL) and water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated to give 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-ethyl-1,3-oxazol-2-yl]-2-methylbenzoic acid as colorless crystals (0.39 g, yield 87%). Recrystallization from acetone-hexane gave colorless prism crystals. melting point: 165-166° C.

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-c6b5d31d7c204f1ebca8368054b37477
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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