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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1707026Generated: November 1, 2026

Hydroxylamine → HCID 23339651, compound

https://huagongshe.com/reaction/1707026

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxylamineHCID 787—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodiumHCID 5360545—
ReactantEthyl alpha-naphthylcarbamoylacetateHCID 12547460—
SolventMethanolHCID 887—
ProductHCID 23339651HCID 2333965162%

Reaction Steps

19.3 g (0.075 mol) of ethyl α-naphthylcarbamoylacetate are treated with a solution of hydroxylamine, prepared from 5.6 g (0.08 mol) of hydroxylamine hydrochloride and 3.68 g of sodium in 250 ml of methanol. After leaving the reactants in contact for 5 hours, the mixture is evaporated to dryness in vacuo, the residue is taken up in 400 ml of cold water, the solution is filtered over charcoal, and the product is precipitated cold with 3 N HCl, filtered off and washed with water. CRL 40,518 is obtained by recrystallisation from ethanol. Yield: 62% Melting point: 184°-186° C. (with decomposition)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04209523
Source datasetuspto-grants-1980_06
ORD IDord-cf5c231508404d56b0e853b92afab3c1
Source noteuspto-grants-1980_06