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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252882Generated: November 2, 2026

Sodium ethoxide → ethyl 2-chloro-5-{1,2,5,7-tetrahydro-2,4-dioxo-thieno[3,4-d]pyrimidin-3(4H)-yl}-benzoate

https://huagongshe.com/reaction/1252882

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
ReactantEthyl 2-chloro-5-{3-[4-(methoxycarbonyl)-2,5-dihydro-thien-3-yl]ureido}-benzoateHCID 20130667—
SolventEthanolHCID 702—
Productethyl 2-chloro-5-{1,2,5,7-tetrahydro-2,4-dioxo-thieno[3,4-d]pyrimidin-3(4H)-yl}-benzoateHCID 20130698—

Reaction Steps

using ethyl 2-chloro-5-{3-[4-(methoxycarbonyl)-2,5-dihydro-thien-3-yl]ureido}-benzoate with sodium ethylate in ethanol there is obtained ethyl 2-chloro-5-{1,2,5,7-tetrahydro-2,4-dioxo-thieno[3,4-d]pyrimidin-3(4H)-yl}-benzoate, m.p. 194°-196° C.,

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04746352
Source datasetuspto-grants-1988_05
ORD IDord-aa20c3408a704186886daafaf4887ce7
Source noteuspto-grants-1988_05