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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605707Generated: October 25, 2026

beta-Aminobeta-ethoxyacrylic acid ethyl ester → 3-Amino-1-(3-nitrobenzyl)-pyrazol-5-one

https://huagongshe.com/reaction/1605707

Reaction equation

Participants

RoleNameHCIDCharge
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
Reactant(3-Nitrobenzyl)hydrazineHCID 20511322—
Product3-Amino-1-(3-nitrobenzyl)-pyrazol-5-oneHCID 20367193—

Reaction Steps

17.5 g of β-amino-β-ethoxyacrylic acid ethyl ester and 16.7 g of 3-nitrobenzylhydrazine, analogously to the procedure described in Example 1 yield 12.3 g of the compound identified above as yellow crystals of melting point 163°, corresponding to 52% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03950528
Source datasetuspto-grants-1976_04
ORD IDord-db35f9cf917f412591e521a20e74fd49
Source noteuspto-grants-1976_04