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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1447902Generated: October 25, 2026

Pyrazole, 3-amino-4-cyano-5-ethyl- → 2-Ethyl-6-methyl-7-(alpha,alpha,alpha-trifluoro-m-tolyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

https://huagongshe.com/reaction/1447902

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazole, 3-amino-4-cyano-5-ethyl-HCID 114021—
Reactant3-Dimethylamino-2-methyl-3'-(trifluoromethyl)acrylophenoneHCID 54529942—
Product2-Ethyl-6-methyl-7-(alpha,alpha,alpha-trifluoro-m-tolyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrileHCID 23329843—

Reaction Steps

As for Example 1, 3-amino-5-ethylpyrazole-4-carbonitrile is reacted with 3-dimethylamino-2-methyl-3'-(trifluoromethyl) acrylophenone to give the product as crystals, m.p. 163°-164° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04178449
Source datasetuspto-grants-1979_12
ORD IDord-79a47711e8b249bd9ac419105c130742
Source noteuspto-grants-1979_12