Iridium-Catalyzed C–H Borylations: Regioselective Functionalizations of Calix[4]arene Macrocycles
The Journal of organic chemistry(2024)
摘要
We report iridium-catalyzed C–H borylations for the regioselective synthesis of distally disubstituted calix[4]arene macrocycles. The atom- and step-economical method led to a broad family of calix[4]arenes in good yields and functional group tolerance. The synthetic utility of the C–H borylation protocol was finally illustrated with several late-stage modifications for the synthesis of elaborate calix[4]arenes frameworks, otherwise challenging to achieve with commonly employed procedures.
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