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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 256514Generated: October 31, 2026

2,6-Diaminopyridine → HCID 178494549, compound

https://huagongshe.com/reaction/256514

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,6-DiaminopyridineHCID 8861—
ReactantMethyl 4-methoxyacetoacetateHCID 123500—
SolventAcetic AcidHCID 176—
ProductHCID 178494549HCID 17849454920%

Reaction Steps

A mixture of 21.8 g (0.2 mol) of 2,6-diaminopyridine and 29.2 g (0.2 mol) of methyl 4-methoxyacetoacetate in 400 ml of glacial acetic acid is stirred under reflux for 3 hours. After cooling, the precipitate is suction filtered and stirred with 150 ml of cold ethanol. 8 g (20%) of the title compound is obtained; m.p.: >290° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05258356
Source datasetuspto-grants-1993_11
ORD IDord-ec54c105bcdc42c9b929bb5aff0f1434
Source noteuspto-grants-1993_11