The successful realization of direct palladium-catalyzed C8-fluoroalkylation and C8-fluoroalkenylation of naphthalene derivatives has been accomplished, employing iodonium salts as coupling partners. The reactions exhibited complete C8-regioselectivity, and diverse carbonyl groups were identified as effective directing groups.
Palladium‐Catalyzed C8‐Oxygenation of Naphthalene Derivatives: Direct Access to Naphtholactone Skeleton
作者:Caroline Berrou、Sébastien Prévost
DOI:10.1002/adsc.202100317
日期:2021.8.13
Herein, a direct C8-oxygenation of naphthalenederivatives is described. Different carbonyl groups were used as directing group to deliver corresponding naphthols via a palladium-catalyzed oxidation reaction using PhI(OAc)2 in a TFA/TFAA mixture. Interestingly, when Weinreb amide was employed as the directing group, the naphtholactone skeleton was directly obtained. This methodology was applied to