Palladium-catalyzed [4 + 3] annulation of 2-bromobiphenyls and epoxides for the assembly of dihydrodibenzo[ b , d ]oxepines.
Zipei ShenLan ZhouChenggui WuQianghui ZhouHong-Gang ChengPublished in: Organic & biomolecular chemistry (2022)
A palladium-catalyzed [4 + 3] annulation of 2-bromobiphenyls and epoxides for the construction of dihydrodibenzo[ b , d ]oxepines is reported. This approach involves direct C-H and C-O bond activation followed by a ring annulation and features readily available starting materials, a broad substrate scope, good step economy and good scalability.
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