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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1377499Generated: November 1, 2026

Hydrochloric Acid → HCID 15205888, compound

https://huagongshe.com/reaction/1377499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-Bromo-4-fluorobenzeneHCID 9993—
ReactantNpc164516HCID 79038—
ReactantButyllithiumHCID 178418339—
SolventDiethyl EtherHCID 3283—
SolventHexaneHCID 8058—
ProductHCID 15205888HCID 1520588866.8%

Reaction Conditions

Temperature-45 °C

Reaction Steps

A mixture of dry ether (600 ml) and 15% BuLi in hexane (500 ml) was cooled to -45° C. A solution of 4-bromo-1-fluorobenzene (145 g) in dry ether (350 ml) was added dropwise at -45° C. followed by stirring for 1 h. A solution of 8-methyl-8-azabicyclo[3,2,1]octan-3-one (85 g) in dry ether (400 ml) was added dropwise at -50° C. followed by stirring for 30 min, the temperature raising to -20° C. The reaction mixture was poured into 2M hydrochloric acid and the phases separated. The ether phase was extracted with 2M hydrochloric acid and the combined aqueous phases made alkaline with aqueous NaOH. Extraction with ethyl acetate, drying of the organic phase over magnesium sulfate and removal of solvent in vacuo, gave 3-(4-fluorophenyl)-3-hydroxy-8-methyl-8-azabicyclo[3,2,1]octane (96 g) as a solid, mp: 169° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05665725
Source datasetuspto-grants-1997_09
ORD IDord-be4369a508df452299d8238780294275
Source noteuspto-grants-1997_09