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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 378553Generated: October 31, 2026

Hydrochloric Acid → HCID 15205888, compound

https://huagongshe.com/reaction/378553

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 2 M hydrochloric acid and the phases separated. The ether phase was extracted with 2 M hydrochloric acid and the combined aqeous phases made alkaline with aqeous 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 numberUS06031099
Source datasetuspto-grants-2000_02
ORD IDord-0791e35799b34ee7a05a667470b006f5
Source noteuspto-grants-2000_02