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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2197706Generated: October 27, 2026

Diethyl 2-((6-ethylpyridin-2-ylamino)methylene)malonate → Ethyl 7-ethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate

https://huagongshe.com/reaction/2197706

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl 2-((6-ethylpyridin-2-ylamino)methylene)malonateHCID 12354398—
SolventDiphenyl EtherHCID 7583—
ProductEthyl 7-ethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylateHCID 1235442080%

Reaction Steps

The product of Example 3c (7.16 g, 0.024 mol) was heated in diphenyl ether following the procedure in Example 1b giving the title compound (4.73 g, 79%) as a tan solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08338605B2
Source datasetuspto-grants-2012_12
ORD IDord-63a01db66aac44a184252bc2a723237d
Source noteuspto-grants-2012_12