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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2397884Generated: October 27, 2026

3-Nitrobenzaldehyde → 2-Amino-5-acetyl-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/2397884

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-NitrobenzaldehydeHCID 7449—
ReactantAcetylacetoneHCID 31261—
ReactantCarbamimidoyl-acetic acid ethyl esterHCID 4599837—
SolventEthanolHCID 702—
Product2-Amino-5-acetyl-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid ethyl esterHCID 1271693848%

Reaction Steps

Upon boiling a solution of 7.6 g of 3-nitrobenzaldehyde, 5.0 g of acetylacetone and 6.5 g of amidinoacetic acid ethyl ester in 100 ml of ethanol for 2 hours, 2-amino-5-acetyl- 6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid ethyl ester of melting point 217° C. (ethanol) is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04022898
Source datasetuspto-grants-1977_05
ORD IDord-9c40d256e7d84a49841916903e2bffac
Source noteuspto-grants-1977_05