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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1740905Generated: October 31, 2026

Hydrochloric Acid → HCID 70008971, compound

https://huagongshe.com/reaction/1740905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 70008142HCID 70008142—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 70008971HCID 7000897180%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972970
Source datasetuspto-grants-1999_10
ORD IDord-f9a4c7dab12f4179995db1a46151c81b
Source noteuspto-grants-1999_10