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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1680435Generated: October 30, 2026

3-Chlorobenzaldehyde → HCID 12640216, compound

https://huagongshe.com/reaction/1680435

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-ChlorobenzaldehydeHCID 11477—
ReactantMethyl 5-aminopyridine-2-carboxylateHCID 12457877—
SolventBenzeneHCID 241—
ProductHCID 12640216HCID 12640216—

Reaction Steps

The starting material is prepared as follows: The mixture of 30.44 g of 5-aminopyridine-2-carboxylic acid methyl ester, 30.9 g of m-chlorobenzaldehyde and 400 ml of benzene is refluxed on a water-trap for 3 days. It is evaporated and the residue recrystallized from benzene/ethylacetate/diethyl ether, to yield the 5-(m-chlorobenzylideneamino)-pyridine-2-carboxylic acid methyl ester melting at 139°-142°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04273779
Source datasetuspto-grants-1981_06
ORD IDord-c3fa626a9daa438a950549ee5452c374
Source noteuspto-grants-1981_06