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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1722740Generated: November 1, 2026

Methanol → HCID 14650083, compound

https://huagongshe.com/reaction/1722740

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium CyanideHCID 8929—
ReactantAmmonium BicarbonateHCID 14013—
Reactant2-PropionylthiopheneHCID 26179—
ProductHCID 14650083HCID 14650083—

Reaction Steps

A mixture of 2-propionylthiophene (50 g), sodium cyanide (19.9 g), ammonium bicarbonate (106 g) and an aqueous methanol solution is stirred for 5 hours under increased pressure with heating. After cooling, the precipitates are collected by filtration, washed and dried, whereby 5-ethyl-5-(2-thienyl)hydantoin (45 g) is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04857543
Source datasetuspto-grants-1989_08
ORD IDord-74becec1bfa84b4e9bd0d9ac4bb470fc
Source noteuspto-grants-1989_08