2-Nitrobenzaldehyde → 4-(2'-Nitrophenyl)-1,4-dihydropyridine-2,3,5,6-tetracarboxylic acid tetraethyl ester

Beteiligte Stoffe

Rolle	Name	HCID	Einwaage
Edukt	2-Nitrobenzaldehyde	HCID 11101	—
Edukt	Diethyl oxalacetate	HCID 66951	—
Edukt	Diethyl 2-iminobutanedioate	HCID 18977200	—
Produkt	4-(2'-Nitrophenyl)-1,4-dihydropyridine-2,3,5,6-tetracarboxylic acid tetraethyl ester	HCID 86733113	—

Reaktionsschritte

A solution of 7.5 g of o-nitrobenzaldehyde, 9.5 g of oxalacetic acid diethyl ester and 9.4 g of iminosuccinic acid diethyl ester in 30 ccs of alcohol is heated under reflux overnight and subsequently cooled. After filtration, light yellow crystals of melting point 109° (ethanol) are obtained.

Herkunft & Nachweise

DOI	10.6084/m9.figshare.5104873.v1
Patentnummer	US03943140
Quelldatensatz	uspto-grants-1976_03
ORD ID	ord-1904ade0fa7f41bb8f03cf302d2b098d
Quellennotiz	uspto-grants-1976_03