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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 507063Generated: October 25, 2026

Hydrochloric Acid → 2-Hydroxyimino-N-indan-4-yl-acetamide

https://huagongshe.com/reaction/507063

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantChloral HydrateHCID 2707—
ReactantSodium SulfateHCID 24436—
Reactant4-AminoindanHCID 122569—
ReactantHydroxylamine, sulfate (1:1)HCID 159255—
SolventWaterHCID 962—
Product2-Hydroxyimino-N-indan-4-yl-acetamideHCID 7274062890.4%

Reaction Conditions

Temperature45 °C

Reaction Steps

To a solution of chloral hydrate (5.46 g, 33 mmol) and anhydrous sodium sulfate (25.6 g, 180 mmol) in water (92 mL) add a mixture of hydroxylamine sulfate (25.6 g, 156 mmol), 4-aminoindane (4 g, 30 mmol), concentrated hydrochloric acid (3.1 mL) in water (30.8 mL). Heat the mixture up to 45° C. for 90 min, to 52° C. over 45 min and to 75° C. for 60 min. Cool the mixture to room temperature and filter the solid. Wash the solid with water and hexane. Dry the solid under vacuum to yield the title compound (5.54 g, 90%). MS (ES−): 203 (M−H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07786108B2
Source datasetuspto-grants-2010_08
ORD IDord-5698eb4ae42646b0a98745a51caaad1c
Source noteuspto-grants-2010_08