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Angewandte Chemie (International ed. in English)

C(aryl)-O activation of aryl carboxylates in nickel-catalyzed biaryl syntheses.


PMID 19280618

Abstract

Crucial breakthroughs in the activation of the C(aryl)-O bond of phenol derivatives were achieved almost simultaneously by two research groups (see scheme; Cy = cyclohexyl). Garg et al. coupled a range of aryl pivalates with arylboronic acids to give unsymmetrical biaryls. Shi et al. achieved this through C(aryl)-O activation of aryl carboxylates; the best results for the coupling of aryl boroxines were again obtained with aryl pivalates.

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