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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 460907Generated: October 29, 2026

p-Toluenesulfonic acid → HCID 20367210, compound

https://huagongshe.com/reaction/460907

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantbeta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 278451—
ReactantHCID 23334276HCID 23334276—
SolventEthanolHCID 702—
ProductHCID 20367210HCID 20367210—

Reaction Steps

20.5 g of 3-methyl-4-chlorbenzylhydrazine were added dropwise, under nitrogen, to a solution of 19.1 g of β-amino-β-ethoxyacrylic acid ethyl ester and 1.5 g of p-toluenesulphonic acid in 200 ml of ethanol. The reaction solution was stirred overnight and the compound identified above, which had separated out as a precipitate, was filtered off and recrystallised from ethanol. Melting point: 131°, 10 g (35%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04061653
Source datasetuspto-grants-1977_12
ORD IDord-620f488dbcbe414e81df712c6903267a
Source noteuspto-grants-1977_12