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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617026Generated: October 31, 2026

p-Toluenesulfonic acid → HCID 20367246, compound

https://huagongshe.com/reaction/617026

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
ReactantHCID 23334324HCID 23334324—
SolventEthanolHCID 702—
ProductHCID 20367246HCID 20367246—

Reaction Steps

50 g of 4-methyl-3-chlorobenzylhydrazine were added dropwise, under nitrogen, to a solution of 46.7 g of β-amino-β-ethoxyacrylic acid ethyl ester and 1.5 g of p-toluenesulphonic acid in 200 ml of ethanol. After stirring for a further two hours, the compound identified above precipitated. It was filtered off and recrystallised from ethanol. Melting point: 130°-131°, 35 g (50%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076943
Source datasetuspto-grants-1978_02
ORD IDord-85860ea8b2d84dc09f37bd9fdda55432
Source noteuspto-grants-1978_02