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Cobalt-Catalyzed Coupling of Benzoic Acid C-H Bonds with Alkynes, Styrenes, and 1,3-Dienes.

ABSTRACT: A method for cobalt-catalyzed, carboxylate-directed functionalization of arene C-H bonds is reported. Alkynes, styrenes, and 1,3-dienes can be coupled with benzoic acids to provide cyclic products in good yields. The reactions proceed in the presence of a cobalt(II) hexafluoroacetylacetonate catalyst, (TMS)2 NH base, Ce(SO4 )2 cooxidant, and oxygen oxidant.

SUBMITTER: Nguyen TT 

PROVIDER: S-EPMC5788714 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Cobalt-Catalyzed Coupling of Benzoic Acid C-H Bonds with Alkynes, Styrenes, and 1,3-Dienes.

Nguyen Tung Thanh TT   Nguyen Tung Thanh TT   Grigorjeva Liene L   Daugulis Olafs O  

Angewandte Chemie (International ed. in English) 20180110 6

A method for cobalt-catalyzed, carboxylate-directed functionalization of arene C-H bonds is reported. Alkynes, styrenes, and 1,3-dienes can be coupled with benzoic acids to provide cyclic products in good yields. The reactions proceed in the presence of a cobalt(II) hexafluoroacetylacetonate catalyst, (TMS)<sub>2</sub> NH base, Ce(SO<sub>4</sub> )<sub>2</sub> cooxidant, and oxygen oxidant. ...[more]

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