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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617050Generated: October 30, 2026

p-Toluenesulfonic acid → HCID 20367240, compound

https://huagongshe.com/reaction/617050

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
ReactantHCID 23334287HCID 23334287—
SolventEthanolHCID 702—
ProductHCID 20367240HCID 20367240—

Reaction Steps

34 g of 4-methyl-3-trifluoromethylbenzylhydrazine were added dropwise, under nitrogen, to a solution of 26.5 g of β-amino-β-ethoxyacrylic acid ethyl ester and a pinch of p-toluenesulphonic acid in 100 ml of ethanol. After stirring overnight, the compound identified above, which had precipitated, was filtered off and recrystallised from ethanol. Melting point: 103°, 20 g (44%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076943
Source datasetuspto-grants-1978_02
ORD IDord-b46da923c3d6492086d92d07a60b8b70
Source noteuspto-grants-1978_02