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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 848743Generated: October 30, 2026

Ethanol → HCID 20564189, compound

https://huagongshe.com/reaction/848743

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHCID 20564185HCID 20564185—
SolventHydrochloric AcidHCID 313—
ProductHCID 20564189HCID 20564189—

Reaction Steps

Suspend 7-carboxy-(1H,3H,5H)-(1)-benzopyrano-(2,3-d)-pyrimidine-4-one-2-thione (5 g.) in ethanol and pass in HCl gas until saturated. Reflux the mixture for 24 hours then cool, filter and wash with ethanol and ether to yield 7-ethoxycarbonyl(1H,3H,5H)-(1)-benzopyrano-(2,3-d)-pyrimidine-4-one-2-thione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04297355
Source datasetuspto-grants-1981_10
ORD IDord-8b4a2aadaeb5419c99c0822f92f09363
Source noteuspto-grants-1981_10