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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1738603Generated: November 3, 2026

Ethanol → HCID 140402281, compound

https://huagongshe.com/reaction/1738603

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantETHYL 2-METHYLBENZOYLFORMATEHCID 11622483—
SolventHexaneHCID 8058—
ProductHCID 140402281HCID 14040228168%

Reaction Steps

To a solution containing 19.2 g of ethyl 2-methylbenzoylformate (0.1 mol) and 100 ml of ethanol, 7.6 g of hydroxylamine hydrochloride (0.11 mol) was added and the resulting mixture was heated under reflux for 5 hours. Afterwards, the solvent was distilled off under reduced pressure as a work-up procedure to give a solid. The solid, to which hexane was added, was pulverized and 14.1 g of ethyl (E)-α-hydroxyimino-o-tolylacetate (yield; 68%) was filtered off. Furthermore, the concentrated residue of the filtrate, to which ethanol and a catalytic amount of thionyl chloride were added, was heated under reflux for 5 hours. The same work-up procedure as shown above was then employed to give 4.5 g of the objective product (yield; 21%). mp 88.0-89.0° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05962723
Source datasetuspto-grants-1999_10
ORD IDord-f462a60d30c84ea6a437ed998f9870c1
Source noteuspto-grants-1999_10