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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1637933Generated: October 31, 2026

Ethanol → HCID 54527564, compound

https://huagongshe.com/reaction/1637933

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant5-(3-nitrobenzylidene)imidazolidine-2,4-dioneHCID 377825—
Reactant2-Amino-4-(4-aminophenyl)thiazoleHCID 605564—
CatalystNickelHCID 935—
SolventDimethylformamideHCID 6228—
ProductHCID 54527564HCID 54527564—

Reaction Steps

2.3 g (10 mmol) of crude 3-nitro-benzylidene-hydantoin, melting point 280-284° C., (prepared as described in Example 6 in (a)) are hydrogenated in 60 ml of DMF and 40 ml EtOH on 2 g of Raney nickel for 36 hours at 20° C. and 3.5 bar. It is filtered over kieselguhr and the filtrate is evaporated down in vacuo. The evaporation residue is crystallised with ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06043254
Source datasetuspto-grants-2000_03
ORD IDord-868b03d787424b74b9f08e5b99c7e1e2
Source noteuspto-grants-2000_03