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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2416634Generated: October 30, 2026

Hydrochloric Acid → HCID 178418923, compound

https://huagongshe.com/reaction/2416634

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAnilineHCID 6115—
ReactantCyanamideHCID 9864—
Reactant1,4-DioxaneHCID 31275—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
ProductHCID 178418923HCID 178418923—

Reaction Conditions

Temperature80 °C

Reaction Steps

Aniline (30 mmol, 1 equiv.), cyanamide (1.3 g, 31 mmol, 1.03 equiv.), and 4N hydrogen chloride in dioxane (8 mL, 32 mmol) was stirred for 10 minutes at room temperature and heated to 80° C. for 18 hours. The mixture was diluted with water (30 mL) and diethyl ether (50 mL). The aqueous layer was washed with ether (30 mL) and the organic layers were discarded. The aqueous layer was neutralized with 6N aqueous HCl (6 mL) and diluted with ethyl acetate (50 mL). The aqueous layer was extracted with ethyl acetate (50 mL) four times. The combined organic layers were concentrated under reduced pressure to afford a solid compound. The solid was washed with diethyl ether (30 mL) to provide pale yellow title compound. The compound was characterized by LC/MS and HPLC.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06825190B2
Source datasetuspto-grants-2004_11
ORD IDord-6a4b105bc44640c9b83fd98b4542916a
Source noteuspto-grants-2004_11