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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 66135Generated: October 26, 2026

Hydrochloric Acid → HCID 178524590, compound

https://huagongshe.com/reaction/66135

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 178469293HCID 178469293—
ProductHCID 178524590HCID 178524590—

Reaction Steps

A mixture of 4,7-dihydro-4,7-dioxo-6-hydroxy-1H-cyclohepta[b]pyridine-2-carboxylic acid ethyl ester (2.5 g, described in Example 3) and 19% hydrochloric acid (75 ml) is refluxed for 1 hour and cooled to room temperature. The crystalline precipitate is collected and washed with water, ethanol and ether to obtain the title compound, mp > 270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04130649
Source datasetuspto-grants-1978_12
ORD IDord-78a56da359094e41b40b68c9b96d18ea
Source noteuspto-grants-1978_12