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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617033Generated: October 30, 2026

p-Toluenesulfonic acid → HCID 20367200, compound

https://huagongshe.com/reaction/617033

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
Reactant[(3-Iodophenyl)methyl]hydrazineHCID 20367273—
SolventEthanolHCID 702—
ProductHCID 20367200HCID 20367200—

Reaction Steps

A solution of 45 g of m-iodobenzylhydrazine in 70 ml of ethanol was added dropwise to a solution of 28.6 g of β-amino-β-ethoxyacrylic acid ethyl ester and 1.5 g of p-toluenesulphonic acid in 350 ml of ethanol. After stirring overnight, the compound identified above had separated out as a precipitate and was filtered off and recrystallised from ethanol. Melting point: 186°, 16 g (28%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076943
Source datasetuspto-grants-1978_02
ORD IDord-9a17d3104f3f4930ae33001719d8557e
Source noteuspto-grants-1978_02