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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1726339Generated: November 3, 2026

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

https://huagongshe.com/reaction/1726339

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 numberUS07491734B2
Source datasetuspto-grants-2009_02
ORD IDord-248bd4d90f124011af92b2c7075a9ebe
Source noteuspto-grants-2009_02