Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 23076605 | HCID 23076605 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 23076465 | HCID 23076465 | 79.4% |
Reaction Steps
To a solution of methyl 5-formyl-2-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzoate (8.18 g) in tetrahydrofuran (50 mL)-ethanol (50 mL) was gradually added sodium borohydride (0.91 g) at room temperature. After stirring for 2 hrs, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give methyl 2-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-5-hydroxymethylbenzoate as pale-yellow crystals (6.53 g, yield 79%) from a fraction eluted with ethyl acetate-hexane (2:1, v/v). Recrystallization from ethyl acetate-hexane gave pale-yellow prism crystals. melting point: 131-132° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07368578B2 |
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| Source dataset | uspto-grants-2008_05 |
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| ORD ID | ord-6c819aad7ced425087fd658ee47780fc |
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| Source note | uspto-grants-2008_05 |
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