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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443921Generated: October 29, 2026

Pyridine → HCID 12368960, compound

https://huagongshe.com/reaction/1443921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-ChlorocyclohexanoneHCID 13203—
Reactant1,2,3,4-TetrahydroquinolineHCID 69460—
Solvent2-MethoxyethanolHCID 8019—
SolventHexaneHCID 8058—
ProductHCID 12368960HCID 12368960—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 1,2,3,4-tetrahydroquinoline (4.0 mL, 32 mmol), 2-chlorocyclohexanone (3.6 mL, 32 mmol) and pyridine (3.0 mL, 38 mmol) in 2-methoxyethanol (80 mL) was heated to 120° C. for 48 h and was then concentrated. The black gummy residue was extracted into ethyl acetate and washed with 2 N HCl. The organic layer was dried (MgSO4) and concentrated. The material was purified by flash column chromatography (elution with 5% ethyl acetate-hexanes) to provide a clear oil which was dissolved in hexane. Upon cooling the solution to −78° C. a precipitate formed. The precipitate was collected to provide 5,6,8,9,10,11-hexahydro-4H-pyrido[3,2,1-jk]carbazole. MS (ES) m/z 212.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07662831B2
Source datasetuspto-grants-2010_02
ORD IDord-1231c86f7c0640288066b032df324f75
Source noteuspto-grants-2010_02