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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 343937Generated: October 31, 2026

Potassium Cyanide → HCID 70077820, compound

https://huagongshe.com/reaction/343937

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CyanideHCID 9032—
ReactantAmmonium CarbonateHCID 517111—
ReactantWater ethanolHCID 19096565—
ReactantHCID 53949728HCID 53949728—
ProductHCID 70077820HCID 70077820—

Reaction Conditions

Temperature75 °C

Reaction Steps

A stirred mixture of 4-cyano-2-(1-pyrrolidinyl)benzaldehyde (0.50 g, 2.5 mmol), potassium cyanide (0.32 g, 5 mmol) and ammonium carbonate (0.96 g, 10 mmol) in 1:1 ethanol-water (10 ml) was heated to 75° C. for 2 hours in a sealed vessel. After dilution with water (20 ml), a solid precipitated on standing. The solid was filtered, washed with water, and then triturated with chloroform to give 5-(4-cyano-2-(1-pyrrolidinyl)phenyl)hydantoin as a yellow solid, m.p. 154° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05863947
Source datasetuspto-grants-1999_01
ORD IDord-ccc804bfae98400c95cb2f94ca640565
Source noteuspto-grants-1999_01