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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1084747Generated: October 31, 2026

Pyridine → HCID 20062669, compound

https://huagongshe.com/reaction/1084747

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
Reactant2-DimethylaminopyridineHCID 21885—
ReactantHCID 13139214HCID 13139214—
SolventDichloromethaneHCID 6344—
ProductHCID 20062669HCID 20062669—

Reaction Conditions

Temperature25 °C

Reaction Steps

65.4 g of 3-(1-hydroxypentyl)toluene are dissolved in 500 ml of absolute methylene chloride at 0° C., and 104 ml of acetic anhydride, 89 ml of pyridine and 1 g of dimethylaminopyridine are added in succession. The reaction solution is stirred at 0° C. for 1 hour and at 25° C. for 2 hours and then poured onto 1 l of ice-water. After the organic phase has been separated off, it is extracted 3 times with 200 ml of methylene chloride each time. The organic phases are washed 3 times with 200 ml of 2N HCl each time, 3 times with 200 ml of saturated NaHCO3 each time and twice with 200 ml of water each time, dried over magnesium sulphate and concentrated in vacuo. The residue is distilled at 95° C./0.1 mm (bulb tube).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05006534
Source datasetuspto-grants-1991_04
ORD IDord-af4d0a12c14c48a7a1829bb74e49d654
Source noteuspto-grants-1991_04