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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47224Generated: October 30, 2026

Hydrochloric Acid → 3-fluoro-6,10b-dihydro-1aH-dibenzo-[3,4:6,7]cyclohept[1,2-b]oxirene

https://huagongshe.com/reaction/47224

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsopropanol hydrochlorideHCID 21912024—
Reactant2-fluoro-5H-dibenzo[a,d]cyclohepteneHCID 22744162—
SolventDiethyl EtherHCID 3283—
Product3-fluoro-6,10b-dihydro-1aH-dibenzo-[3,4:6,7]cyclohept[1,2-b]oxireneHCID 8658870043%

Reaction Steps

Compound 1 was dissolved in diethyl ether (20 ml) and converted into the hydrochloric acid salt (1:1) by dropwise addition of 6 N HCl/2-propanol. The solvent was evaporated. The residue was triturated under boiling 2-propanone, filtered off and dried, yielding 2.17 g (43%) of (±)-(2α,3aβ,12bα)-11-fluoro-3,3a,8,12b-tetrahydro-N, N-dimethyl-2H-dibenzo[3,4:6,7]cyclohepta[1,2-b]furan-2-methanamine hydrochloride (compound 2; mp. 239.1° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699858B2
Source datasetuspto-grants-2004_03
ORD IDord-26278836630c419db0cc219d547fda6f
Source noteuspto-grants-2004_03