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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1447894Generated: October 26, 2026

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

https://huagongshe.com/reaction/1447894

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 numberUS04178449
Source datasetuspto-grants-1979_12
ORD IDord-aca8d712d3184de7a05dab8455ee7c43
Source noteuspto-grants-1979_12