Zni2-Catalyzed Aminotrifluoromethylation Cyclization Of Alkenes Using Phicf3cl
JOURNAL OF ORGANIC CHEMISTRY(2021)
摘要
We report here an alternatively catalytic aminotrifluoromethylation of alkenes using PhICF3Cl as a bifunctional reagent along with ZnI2 as a dual catalyst. A combined catalytic strategy was established for the intramolecular aminotrifluoromethylation of 4-pentenamines. As a result, a set of 2-trifluoroethyl-pyrrolidines was obtained in a high selectivity. Mechanism studies revealed that the reaction included an iodine anion-catalyzed radical chlorotrifluoromethylation of alkenes and a sequential Lewis acid-promoted aminocyclization of the resulting chlorotrifluoromethylated intermediates.
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关键词
aminotrifluoromethylation cyclization,alkenes,phicf<sub>3</sub>cl
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