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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 24364Generated: October 25, 2026

Hydrochloric Acid → 4-Methoxyisonitrosoacetanilide

https://huagongshe.com/reaction/24364

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantChloral HydrateHCID 2707—
ReactantP-AnisidineHCID 7732—
ReactantSodium SulfateHCID 24436—
ReactantHydroxyamine hydrochlorideHCID 443297—
SolventWaterHCID 962—
Product4-MethoxyisonitrosoacetanilideHCID 671079185.2%

Reaction Steps

A solution of 11.4 g of hydroxylamine hydrochloride in water (50 ml) was added to a solution of chloral hydrate (9.6 g) and sodium sulfate (83 g) in water (200 ml) at 60° C. The mixture was held at 60° C. while, in a separate flask, a solution of 4-anisidine (6.4 g) and concentrated hydrochloric acid (4.3 ml) in water (80 ml) was warmed to 80° C. The first solution was then added to the second and the reaction was refluxed for 2 minutes, cooled slowly to room temperature and then cooled in an ice bath. The tan precipitate which formed was collected by vacuum filtration, washed with water and dried under vacuum to give 8.6 g (85% yield) of N—(2-hydroximinoacetyl)anisidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06855730B2
Source datasetuspto-grants-2005_02
ORD IDord-deec456113a2417395df3df26c07fc19
Source noteuspto-grants-2005_02