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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 428264Generated: October 26, 2026

Hydrochloric Acid → 4-Methoxyisonitrosoacetanilide

https://huagongshe.com/reaction/428264

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 80mL 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-hydroximinoacetyl)anisidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06313158B1
Source datasetuspto-grants-2001_11
ORD IDord-013af8e88ed74f8f87b1346e353a6e5a
Source noteuspto-grants-2001_11