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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2194296Generated: November 2, 2026

Ethanol → 130251-07-9

https://huagongshe.com/reaction/2194296

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
Reactantalpha-Bromobutyric acid, (R)-HCID 6992738—
Product130251-07-9HCID 7000062—

Reaction Steps

0.45 mL of sulfuric acid was added to ethanol (70 mL) solution of 7.0 g of (R)-2-bromobutyric acid at room temperature, and refluxed for 3 hours. The reaction mixture was cooled to room temperature, and poured into ice water (140 mL). The solution was extracted 3 times with ethyl acetate. The combined extract was sequentially washed with saturated sodium hydrogen carbonate solution and brine, and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated in vacuo, and 7.47 g of the subject compound was prepared as colorless oil. Optical purity 96% ee (HPLC)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329913B2
Source datasetuspto-grants-2012_12
ORD IDord-254f7db1dc424391b1abd5787be0b820
Source noteuspto-grants-2012_12