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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1707062Generated: October 26, 2026

3-Dimethylamino-3'-trifluoromethylacrylophenone → 2-Ethyl-7-(m-trifluoromethylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine

https://huagongshe.com/reaction/1707062

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Dimethylamino-3'-trifluoromethylacrylophenoneHCID 730024—
Reactant5-ethyl-1H-1,2,4-triazol-3-amineHCID 1714204—
SolventAcetic AcidHCID 176—
Product2-Ethyl-7-(m-trifluoromethylphenyl)-1,2,4-triazolo[1,5-a]pyrimidineHCID 20333365—

Reaction Steps

A mixture of 2.24 g. of 3-amino-5-ethyl-1,2,4-triazole and 4.86 g. of 3-dimethylamino-3'-trifluoromethylacrylophenone in 50 ml. of glacial acetic acid is refluxed for 16 hours. The resulting mixture is worked up as described in Example 54 to give the product of the Example, m.p. 132°-134° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04209621
Source datasetuspto-grants-1980_06
ORD IDord-5aee4fedb5c848efb47806bdadc4cb0f
Source noteuspto-grants-1980_06