Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 4-(4-Chloromethylphenoxy)methyl-5-methyl-2-phenyloxazole | HCID 10946940 | — |
| Reactant | HCID 11086886 | HCID 11086886 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 10896909 | HCID 10896909 | 61.8% |
Reaction Steps
Sodium hydride (60% in oil, 368 mg) was added under a nitrogen atmosphere to a solution of ethyl Z-2-(4-bromophenyl)-2-hydroxyiminoacetate (2.50 g) and 4-(4-chloromethylphenoxymethyl)-5-methyl-2-phenyloxazole (3.03 g) in N,N-dimethylformamide (25 ml) at room temperature and the mixture was stirred for 1 hour. After adding 1N HCl (12 ml), aqueous sodium bicarbonate was added, and then the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride, dried (MgSO4) and then concentrated. The residue was subjected to column chromatography on silica gel to obtain ethyl Z-2-(4-bromophenyl)-2-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyimino]acetate (3.12 g, yield 61%) as a colorless oil from a fraction eluted with ethyl acetate-hexane (1:3, v/v).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06495581B1 |
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| Source dataset | uspto-grants-2002_12 |
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| ORD ID | ord-77fe15e72bd944a9a9ab26ad10b82b98 |
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| Source note | uspto-grants-2002_12 |
|---|