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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617055Generated: October 30, 2026

p-Toluenesulfonic acid → HCID 20367293, compound

https://huagongshe.com/reaction/617055

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
Reactant[(3,5-Dichlorophenyl)methyl]hydrazineHCID 20367216—
SolventEthanolHCID 702—
ProductHCID 20367293HCID 20367293—

Reaction Steps

After adding 1 g of p-toluenesulphonic acid to a solution of 49.6 g of β-amino-β-ethoxyacrylic acid ethyl ester in 220 ml of ethanol, 59 g of 3,5-dichlorobenzylhydrazine were added dropwise under nitrogen. The solution was left to stand overnight and the solids which precipitated melted at 175°-176° after recrystallisation from ethanol. Yield: 40 g (48%) of the compound identified above.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076943
Source datasetuspto-grants-1978_02
ORD IDord-bbf197833c50488a889d10bbfa1ef7f5
Source noteuspto-grants-1978_02