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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 476871Generated: October 29, 2026

Hydrochloric Acid → HCID 54148330, compound

https://huagongshe.com/reaction/476871

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 53983876HCID 53983876—
CatalystIronHCID 23925—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 54148330HCID 5414833042.4%

Reaction Conditions

Temperature65 °C

Reaction Steps

Hydrochloric acid (100 ml of 4N) is added dropwise to a mixture of 4-[2-(p-nitrophenyl)ethenyl]pyrimidine (28 g), ethanol (250 ml) and iron fillings (28 g). The reaction temperature is increased to 65° C., and the mixture is stirred at that temperature for two hours. Water is added, followed by an aqueous 30% potassium hydroxide solution (200 ml), and chloroform (1 liter). The mixture is filtered through celite, and the chloroform layer is separated, dried over sodium sulfate and then concentrated. Addition of ether gives 4-[2-(p-aminophenyl)ethenyl]pyrimidine (10.3 g), m.p. 227°-230° C., which is used as the starting compound without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04886801
Source datasetuspto-grants-1989_12
ORD IDord-2bd02cb1745d48b29a6fe293496e555e
Source noteuspto-grants-1989_12