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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1164585Generated: October 28, 2026

2-Nitrobenzaldehyde → Piperidine

https://huagongshe.com/reaction/1164585

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-NitrobenzaldehydeHCID 11101—
ReactantButanoic acid, 3-oxo-, 2-phenoxyethyl esterHCID 12237326—
SolventBenzeneHCID 241—
ProductPiperidineHCID 8082—
ProductHCID 53638503HCID 53638503—

Reaction Steps

Starting from a mixture of 2-nitrobenzaldehyde (3.02 g), 2-phenoxyethyl acetoacetate (4.44 g), piperidine (272.5 mg) in benzene (10.8 ml) was obtained an oil (8.0 g) of 2-phenoxyethyl 2-(2-nitrobenzylidene)acetoacetate. Thus obtained oil was treated with ethyl 3-amino-4,4-diethoxycrotonate (4.34 g) to given an oil of 2-phenoxyethyl 2-methyl-4-(2-nitrophenyl)-5-ethoxycarbonyl-6-diethoxymethyl-1,4-dihydropyridine-3-carboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04370334
Source datasetuspto-grants-1983_01
ORD IDord-c32a210f6abf408ba2ebc38294f3305c
Source noteuspto-grants-1983_01