Palladium-Catalyzed Intramolecular Aminotrifluoromethoxylation of Alkenes
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The first catalytic trifluoromethoxylation of unactivated alkenes has been developed, in which Pd(CH3CN)2Cl2 was used as catalyst, AgOCF3 as trifluoromethoxide source, and Selectfluor-BF4 as oxidant. A variety of 3-OCF3 substituted piperidines were selectively obtained in good yields. Direct evidence was provided to address the facile reductive elimination of PdIV–OCF3 complex to form sp3 C–OCF3 bond.
创建时间:
2016-02-12




