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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860763Generated: November 2, 2026

Hydrochloric Acid → 4-Methoxyisonitrosoacetanilide

https://huagongshe.com/reaction/1860763

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 numberUS06531502B1
Source datasetuspto-grants-2003_03
ORD IDord-71cdc3f5de7c4f659a46a6c2d2e1a33d
Source noteuspto-grants-2003_03