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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1253282Generated: November 1, 2026

Hydroxyamine hydrochloride → HCID 136393701, compound

https://huagongshe.com/reaction/1253282

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
ReactantEthyl (7-ethyl-1H-indol-3-yl)(oxo)acetateHCID 14010219—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 136393701HCID 13639370175.7%

Reaction Steps

Solutions of sodium acetate (43.7 g, 0.53 mol) in water (100 mL) and hydroxylamine hydrochloride (37 g, 0.53 mol) in water (100 mL) were added to 7-ethyl-α-oxo-1H-indole-3-acetic acid ethyl ester 4 (17.4 g, 0.07 mol), in ethanol (250 mL) and the mixture was heated at reflux for 12 hours. The ethanol was removed by distillation and the resultant precipitate was filtered and recrystallized from hot ethanol to give the product (13.8 g, 75%), m.p. 167°-169° C. as a mixture of isomers.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04748252
Source datasetuspto-grants-1988_05
ORD IDord-282044119787497b8bf5285af2727d59
Source noteuspto-grants-1988_05