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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1350892Generated: October 30, 2026

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

https://huagongshe.com/reaction/1350892

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 numberUS07214688B2
Source datasetuspto-grants-2007_05
ORD IDord-d711133b17984670b9686b14f5d3e4cb
Source noteuspto-grants-2007_05