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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 444037Generated: October 27, 2026

Cyanic acid → 5-(6-Ethoxycarbonylhexyl)-1-(3-cyclohexyl-3-oxopropyl)hydantoin

https://huagongshe.com/reaction/444037

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanic acidHCID 540—
ReactantDiethyl 2-[(3-cyclohexyl-3-oxopropyl)amino]nonanedioateHCID 3017622—
Product5-(6-Ethoxycarbonylhexyl)-1-(3-cyclohexyl-3-oxopropyl)hydantoinHCID 20436903—

Reaction Steps

Reaction of diethyl 2-((3-cyclohexyl-3-oxopropyl)amino)nonanedioate (20.8 g) with cyanic acid using the general procedure of Example 2d afforded 5-(6-ethoxycarbonylhexyl)-1-(3-cyclohexyl-3-oxopropyl)hydantoin which was converted to the corresponding acid which crystallised from ether, m.p. 77.5°-78.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04262128
Source datasetuspto-grants-1981_04
ORD IDord-ae1f242a9584414e9c067da8f621213a
Source noteuspto-grants-1981_04