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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 990313Generated: October 29, 2026

Pyridine → HCID 22041810, compound

https://huagongshe.com/reaction/990313

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 11300023HCID 11300023—
ReactantHCID 18421080HCID 18421080—
SolventChloroformHCID 6212—
ProductHCID 22041810HCID 22041810—

Reaction Steps

To 104 mg (0.026 mmol) of compound 107 was added 6.5 mL of chloroform, 1.3 mL of thionyl chloride, and 100 μL of pyridine. The reaction was allowed to stir at ambient temperature for 3 hours and then all volatiles were removed in vacuo. The residue was stripped in vacuo from chloroform twice. To the resulting solid, suspended in 15 mL of chloroform was added 74 mg (0.028 mmol) of 4-methylphenyl 3-aminobenzenesulfonate (compound 5) and 27 μL (0.033 mmol) of pyridine as a solution in 1.5 mL of chloroform. The reaction was allowed to stir at ambient temperature for 16 hours, after which it was partitioned between ethyl acetate and 1 N HCl (aqueous). The organic layer was dried (magnesium sulfate), filtered, and the volatiles were removed in vacuo. The resulting residue was treated with diethyl ether. and the solid precipitate collected by vacuum filtration. This provided 110 mg of compound 108.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06458998B1
Source datasetuspto-grants-2002_10
ORD IDord-ebb6f3ed5e4648018dd0ef6effe15c47
Source noteuspto-grants-2002_10