Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2306798Generated: October 27, 2026

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

https://huagongshe.com/reaction/2306798

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 numberUS06828343B2
Source datasetuspto-grants-2004_12
ORD IDord-7d5be1d4d2314f5d8530def4c733d888
Source noteuspto-grants-2004_12