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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1076982Generated: October 31, 2026

Hydrochloric Acid → 10-Chloro-1,4,6,9-tetrahydro-4,6-dioxopyrido(3,2-g)quinoline-2,8-dicarboxylic acid

https://huagongshe.com/reaction/1076982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 12403020HCID 12403020—
SolventWaterHCID 962—
Product10-Chloro-1,4,6,9-tetrahydro-4,6-dioxopyrido(3,2-g)quinoline-2,8-dicarboxylic acidHCID 72775—

Reaction Steps

1.05 g. of the diester compound prepared in Example 6 is heated at reflux for 1 hour in 20 ml. of 5% sodium hydroxide. The mixture is cooled, 10 ml. of water added, and the pH adjusted to 3 with concentrated hydrochloric acid. The bright yellow diacid is collected by filtration. It has a melting point greater than 310° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03959289
Source datasetuspto-grants-1976_05
ORD IDord-056abfa51d6948ad8aacb4dea06c4419
Source noteuspto-grants-1976_05