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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 642788Generated: October 31, 2026

Pyridinium chloride → HCID 44412034, compound

https://huagongshe.com/reaction/642788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
Reactant8-Methoxy-11-methyl-6,11-dihydro-5-thia-4,11-diaza-benzo[a]fluoreneHCID 59676078—
ProductHCID 44412034HCID 44412034—

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of 8-methoxy-11-methyl-6,11-dihydro-5-thia-4,11-diaza-benzo[a]fluorene (100 mg, 0.355 mmoL) and pyridine HCl salt (410 mg, 3.55 mmoL) was sealed in a tube and heated to 180° C. for 2 hours. The reaction mixture was cooled and the residue was partitioned between water and EtOAc. The EtOAc layer was washed with saturated NaHCO3, water, brine, dried over anhydrous Na2SO4, filtered and concentrated to yield a brown oil. The crude material (the oil) was then purified by column chromatography (silica gel, hexanes:EtOAc 1:1 as eluent) to yield the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696239B2
Source datasetuspto-grants-2010_04
ORD IDord-c621b7b37bce48409d90ee8a4a17c15c
Source noteuspto-grants-2010_04