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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605713Generated: October 28, 2026

p-Toluenesulfonic acid → HCID 20367180, compound

https://huagongshe.com/reaction/1605713

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
Reactant[(2,5-Dimethylphenyl)methyl]hydrazineHCID 20367329—
SolventEthanolHCID 702—
ProductHCID 20367180HCID 20367180—

Reaction Steps

26.6 g of 2,5-dimethylbenzylhydrazine were added dropwise to a solution of 28.2 g of β-amino-β-ethoxyacrylic acid ethyl ester and 1 g of p-toluenesulphonic acid in 130 ml of ethanol, in the course of which the temperature rose from 25 to 35°C. After stirring overnight, the compound identified above separated out, and was filtered off and recrystallised from ethanol. Melting point: 124°, 20 g (52%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03950528
Source datasetuspto-grants-1976_04
ORD IDord-eef80e95ff5d48638b06f977f7194952
Source noteuspto-grants-1976_04