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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1057440Generated: November 3, 2026

Hydrochloric Acid → 4-Methoxyisonitrosoacetanilide

https://huagongshe.com/reaction/1057440

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 was heated to refulux. The reaction was heated to refulux for 2 minutes, 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 numberUS06514981B1
Source datasetuspto-grants-2003_02
ORD IDord-76ff7d208cd24b7cb3e32e7b795c817f
Source noteuspto-grants-2003_02