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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1788889Generated: November 1, 2026

Hydroxyamine hydrochloride → HCID 136393701, compound

https://huagongshe.com/reaction/1788889

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 recrystalized 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 numberUS04686213
Source datasetuspto-grants-1987_08
ORD IDord-589aecb4d1ef418abc0ff082e9f786cc
Source noteuspto-grants-1987_08