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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 891438Generated: October 30, 2026

4-Bromo-2-thiophenecarboxylic Acid → HCID 23599474, compound

https://huagongshe.com/reaction/891438

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-2-thiophenecarboxylic AcidHCID 610409—
Reactant(R)-(+)-3-Aminoquinuclidine DihydrochlorideHCID 12494972—
ProductHCID 23599474HCID 23599474—

Reaction Steps

Prepared by a method analogous to that described for the preparation of Intermediate 1 from (R)-1-azabicyclo[2.2.2]oct-3-ylamine dihydrochloride and 4-bromothiophene-2-carboxylic acid. The residue from evaporation of the reaction mixture was partitioned between aqueous hydrochloric acid and chloroform. The aqueous layer was then basified with aqueous sodium hydroxide and extracted with chloroform. The organic extracts were dried (MgSO4), filtered, and evaporated and resulting solid was recrystallised from ethyl acetate/hexane to give the title compound as a colourless solid; MS (ES+) 315, 317 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07001914B2
Source datasetuspto-grants-2006_02
ORD IDord-0d6e2dc370d946b49ea7af03e3327b47
Source noteuspto-grants-2006_02