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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 462071Generated: October 29, 2026

Acetic Acid → 7-Chloro-4-hydroxy-1-methyl-2(1H)-quinolinone

https://huagongshe.com/reaction/462071

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant4-Chloro-2-(methylamino)benzoic acidHCID 12535368—
SolventAcetic AnhydrideHCID 7918—
Product7-Chloro-4-hydroxy-1-methyl-2(1H)-quinolinoneHCID 54696298—

Reaction Steps

Refluxing a solution of 4-chloro-N-methyl anthranilic acid (13.6g; 0.073 mole) in acetic acid (37 ml) and acetic anhydride (37 ml) for 6 hours and work up as described in Example 35(a) gave the title compound; m.p. (AcOH, EtOH) 308°-9°. (Found; C, 56.97; H, 4.03; N, 6.89 Cl, 16.82; C10H8NClO2 requires; C, 57.29; H, 3.85; N, 6.68; Cl, 16.91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04065457
Source datasetuspto-grants-1977_12
ORD IDord-6f3e18f8328147f99411a5c88a8f37ac
Source noteuspto-grants-1977_12