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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 605310Generated: October 27, 2026

Nitric Acid → HCID 56763846, compound

https://huagongshe.com/reaction/605310

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantEthyl 5-chlorothiophene-2-carboxylateHCID 521808—
ProductHCID 56763846HCID 5676384655%

Reaction Conditions

Temperature10 °C

Reaction Steps

A solution of fuming nitric acid (75 mL) was cooled to 10° C. followed by the addition of 5-chloro-thiophene-2-carboxylic acid ethyl ester (15 g, 78.7 mmol). The resulting mixture was stirred for 30 minutes at 10° C. followed by the addition of ice water. The solution was then extracted with ethyl acetate and dried, then concentrated under vacuum and purified by column chromatography using silica gel to provide 10.29 g (55%) of the title product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07910595B2
Source datasetuspto-grants-2011_03
ORD IDord-ab80c8d83b084772a16961669b11eb2b
Source noteuspto-grants-2011_03