Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 483196Generated: October 30, 2026

Methyl 3-aminocrotonate → 2-(N-benzyl-N-methylamino)ethyl methyl 2,6-dimethyl-4-(3-chloro-2-fluorophenyl)-1,4-dihydropyridine-3,5-dicarboxylate

https://huagongshe.com/reaction/483196

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 3-aminocrotonateHCID 643918—
Reactant3-Chloro-2-fluorobenzaldehydeHCID 736335—
Reactant2-(Benzylmethylamino)ethyl acetoacetateHCID 11776829—
SolventIsopropanolHCID 3776—
Product2-(N-benzyl-N-methylamino)ethyl methyl 2,6-dimethyl-4-(3-chloro-2-fluorophenyl)-1,4-dihydropyridine-3,5-dicarboxylateHCID 1034532950.9%

Reaction Steps

A mixture of 320 mg of 3-chloro-2-fluorobenzaldehyde, 252 mg of methyl 3-aminocrotonate and 510 mg of 2-(N-benzyl-N-methylamino)ethyl acetoacetate in 2 ml of 2-propanol was refluxed for 6 hours, and then the solvent was distilled off in vacuo. The residue was purified by the methods of a column chromatography on silica gel to yield 500 mg of the desired compound (106)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04578395
Source datasetuspto-grants-1986_03
ORD IDord-c9a8a53fc85c40d88eb5895ed9999b8d
Source noteuspto-grants-1986_03