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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2275523Generated: November 3, 2026

Chloride → HCID 86688833, compound

https://huagongshe.com/reaction/2275523

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorideHCID 312—
ReactantSodium hydrideHCID 24758—
ReactantButanedioic acid, 2,3-dihydroxy-, diethyl ester, S-(R*,R*)-HCID 62333—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86688833HCID 86688833—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of sodium hydride (0.8712 g, 1.5 eq) in THF at 0° C., diethyl tartarate (5 g, 1 eq) in THF (50 ml) was added drop wise and stirred for 1 h at 0° C. Then butaryl chloride (7.735 g, 3 eq) was added drop wise and stirred for 1 h at 0° C. under nitrogen atmosphere. The stirring was continued for another 12 h at 25-30° C. The reaction was monitored by thin layer chromatography. The reaction was quenched with cold water and extracted with ethyl acetate. Ethyl acetate layer was washed with sodium bicarbonate solution (10%) followed by water and brine solution. The organic layer was dried over sodium sulphate and concentrated to get the crude product. The crude product was purified by the column chromatography using 7% ethyl acetate in petroleum ether as eluent. The product was characterized by NMR. The yield was 3.2 g; 38.5%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09127232B2
Source datasetuspto-grants-2015_09
ORD IDord-a9822802bd614f29a4b31e6dad907e34
Source noteuspto-grants-2015_09