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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 225282Generated: October 25, 2026

3-Dimethylamino-4'-ethylacrylophenone → Ethyl 7-(p-ethylphenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

https://huagongshe.com/reaction/225282

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Dimethylamino-4'-ethylacrylophenoneHCID 53833899—
ReactantHCID 178469928HCID 178469928—
SolventAcetic AcidHCID 176—
ProductEthyl 7-(p-ethylphenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylateHCID 11483299—

Reaction Steps

A mixture of 4.07 g. of 3-dimethylamino-4'-ethylacrylophenone and 3.10 g. of ethyl 3-aminopyrazole-4-carboxylate in 25 ml. of glacial acetic acid is refluxed for 20 hours. The compound is recovered from the reaction in the previously described fashion to yield crystals, m.p. 101°-103° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04236005
Source datasetuspto-grants-1980_11
ORD IDord-fd06a2880b0740edb5a224f9008412f4
Source noteuspto-grants-1980_11