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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1368968Generated: October 29, 2026

Hydrochloric Acid → 2-bromo-4H-thieno(3,2-b)pyrrole-5-carboxylic acid

https://huagongshe.com/reaction/1368968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylateHCID 13164349—
Product2-bromo-4H-thieno(3,2-b)pyrrole-5-carboxylic acidHCID 22556490—

Reaction Steps

2-Bromo-4H-thieno[3,2-b]pyrrole-5-carboxylic acid ethyl ester (Eras, J.; Galvez, C.; Garcia, F., J. Heterocycl. Chem., 21: 215-217 (1984)) was hydrolyzed according to Procedure D (after cooling to room temperature, acidification with 2 N HCl; resultant precipitate filtered, suspended in toluene, concentrated; no purification).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06576653B2
Source datasetuspto-grants-2003_06
ORD IDord-fbda73132a89485eb889b72ab2d59aa3
Source noteuspto-grants-2003_06