Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 70008142 | HCID 70008142 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 70008971 | HCID 70008971 | 80% |
Reaction Steps
To a solution of 5-[3-[4-[2-(5-methyl-2-phenyl-4-oxazolyl)-2-oxoethoxy]phenyl]propyl]-2,4-oxazolidinedione (0.2 g) in tetrahydrofuran (THF) (5 ml)-ethanol (5 ml) was added sodium borohydride (0.03 g). The mixture was stirred for one hour at room temperature. To the reaction mixture were added 2N HCl and water, followed by extraction with ethyl acetate. The ethyl acetate layer was washed with water and dried (MgSO4), then the solvent was distilled off. The oily residue was subjected to a silica gel column chromatography. From the reactions eluted with chloroform-methanol (50:1, v/v) was obtained 5-[3-[4-[2-hydroxy-2-(5-methyl-2-phenyl-4-oxazolyl)ethoxy]-phenyl]propyl]-2,4-oxazolidinedione (0.16 g, 80%). Recrystallization from dichloromethane-isopropyl ether gave colorless needles, m.p.146-147° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05972970 |
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| Source dataset | uspto-grants-1999_10 |
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| ORD ID | ord-f9a4c7dab12f4179995db1a46151c81b |
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| Source note | uspto-grants-1999_10 |
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