Synthesis of Terphenyls and Quaterphenyls via the Nickel N-Heterocyclic Carbene-Catalyzed Cross-Coupling of Neopentyl Arenesulfonates with Aryl Grignard …

…, CB Kim, TY Ryoo, BK Ahn, KY Park

Index: Jo, Hyunjong; Kim, Chul-Bae; Ryoo, Tae-Yong; Ahn, Bo-Kyoung; Park, Kwangyong Bulletin of the Korean Chemical Society, 2010 , vol. 31, # 12 p. 3749 - 3754

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Citation Number: 4

Abstract

Abstract Various terphenyl and quaterphenyl derivatives were prepared by the Ni-NHC catalyzed cross coupling of the corresponding biphenyl-and terphenyl-sulfonates with arylmagnesium bromides. The reactions proceeded rapidly via a nucleophilic aromatic substitution of the alkoxysulfonyl moieties by the aryl nucleophiles to afford high yields within just 1.5 h at room temperature in spite of the low reactivity of the sulfur electrophiles.