https://www.selleckchem.com/pr....oducts/triparanol-me
An efficient pathway toward a novel class of trifluoromethyl building blocks was elaborated. The reaction of α-CF3-enamines with arylaldehydes resulted in direct synthesis of α,β-diaryl-CF3-enones isolated in up to 93% yield as E-isomers. The possible reaction mechanism was proposed using the Zimmerman-Traxler model. The reaction of α,β-diaryl-CF3-enones with hydrazines opens a novel pathway to trifluoromethylated pyrazolines. Oxidation of pyrazolines with DDQ opened access to totally regioselective preparation of 3-CF3-pyrazo
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