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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605730Generated: November 1, 2026

p-Toluenesulfonic acid → HCID 20367208, compound

https://huagongshe.com/reaction/1605730

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
ReactantHCID 20367320HCID 20367320—
SolventEthanolHCID 702—
ProductHCID 20367208HCID 20367208—

Reaction Steps

45.5 g of 4-chloro-3-ethoxybenzylhydrazine were added, under nitrogen, to a solution of 35 g of β-amino-β-ethoxyacrylic acid ethyl ester and 1 g of p-toluenesulphonic acid in 200 ml of ethanol. After stirring overnight, the compound identified above, which had separated out as a precipitate, was filtered off and recrystallised from ethanol. Melting point: 143°, 15.2 g (26%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03950528
Source datasetuspto-grants-1976_04
ORD IDord-95bd8b01a1ed4eb795b3bb4f25b13b0e
Source noteuspto-grants-1976_04