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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1719205Generated: October 31, 2026

Acetic Anhydride → HCID 20267903, compound

https://huagongshe.com/reaction/1719205

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 13456640HCID 13456640—
SolventPyridineHCID 1049—
ProductHCID 20267903HCID 20267903—

Reaction Steps

2.5 ml of acetic anhydride are added to a suspension of 4.0 g of 3-amino-5-(4-pyrimidinyl)-2-(1H)-pyridone in 60 ml of pyridine. The mixture is heated on a steam bath for 2 hours and then cooled in an ice bath. The solid is filtered, washed with ethanol and dried. Recrystallization from dimethyl formamide yields the desired product, M.P.>250° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04539321
Source datasetuspto-grants-1985_09
ORD IDord-2c0a6229e737459cac1796cf9aa66b4b
Source noteuspto-grants-1985_09