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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475042Generated: October 30, 2026

Acetic Anhydride → HCID 59145586, compound

https://huagongshe.com/reaction/475042

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantEthyl oxoacetateHCID 70211—
Reactant6-Methylnicotinic acidHCID 137860—
ProductHCID 59145586HCID 59145586145.7%

Reaction Conditions

Temperature130 °C

Reaction Steps

6-Methylnicotinic acid (5 g, 36 mmol) and ethyl glyoxalate (50% solution in toluene −8.7 mL, 44 mmol) were added to Ac2O (25 mL) and stirred under a nitrogen atmosphere. The reaction was heated at 130° C. for 3 h then allowed to cool to RT over 17 h. The reaction was then quenched with water (10 mL) and concentrated to dryness in vacuo to afford the product as a brown solid (11.6 g, >100%). m/z=222 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637547B2
Source datasetuspto-grants-2014_01
ORD IDord-4511e02db90c4c60a4d9542655863455
Source noteuspto-grants-2014_01