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Via Au-Catalyzed C sp -H Functionalization

A similar process leading to dihydrobenzofurans 6 through a PhgPAuOTf-catalyzed Claisen rearrangement of aryl allyl ethers 5 followed by a tandem phenol addition was reported by He et al. Controlled experiments revealed that [Pg.360]


Synthesis of Seven-Membered /V-Heterocycles 12.3.3.1 Via Au-Catalyzed C(sp )-H Functionalization... [Pg.382]

In 2006, Li and coworkers reported a Au-catalyzed aryl C(sp )-H functionalization of phenols and naphthols 3 with dienes toward the synthesis of benzofuran 4 (Scheme 12.2) [6]. This reaction proceeds via a Au(III)-catalyzed intermolecular addition of aryl C-H bond to dienes followed by the intramolecular addition of the phenol O-H bond to afford benzofuran 4. [Pg.360]


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C Function

C-H functionalization

H-function

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