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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1369874Generated: October 29, 2026

Hydrochloric Acid → 4-Methoxyisonitrosoacetanilide

https://huagongshe.com/reaction/1369874

Reaction equation

Participants

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

Reaction Conditions

Temperature60 °C

Reaction Steps

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

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06579897B2
Source datasetuspto-grants-2003_06
ORD IDord-e97c5b4bc62746ba8f8f7218c420e3da
Source noteuspto-grants-2003_06