Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1154530Generated: October 28, 2026

Pyridine → HCID 22281167, compound

https://huagongshe.com/reaction/1154530

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantSulfuric AcidHCID 1118—
ReactantAcetic AnhydrideHCID 7918—
ProductHCID 22281167HCID 22281167—

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of 30 ml of acetic anhydride and 8.05 ml (0.1 mole) of pyridine is cooled to 0° C., and 5.4 ml of conc. H2SO4 is added dropwise at 0° C. under stirring. After 10 minutes, the crystals are filtered, washed with diethyl ether and dried under vacuum over P2O5 and KOH. Yield: 18.4 g (84%). IR: 1050 cm-1 sharp band, characteristic for sulfates and sulfate esters. Decomposes above 75° C., very hygroscopic. MW: 219.2 (C7H9O5NS).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04490364
Source datasetuspto-grants-1984_12
ORD IDord-31ef5b543ae04d0ca0c0e4bf5fa1b410
Source noteuspto-grants-1984_12