Heterobimetallic base NaCo(HMDS) [HMDS = N(SiMe)] enables regioselective di-cobaltation of activated polyfluoroarenes under mild reaction conditions. For 1,3,5-CHX (X= Cl, F), NaCo(HMDS) in excess at 80 °C impressively induces the collective cleavage of five bonds (two C-H and three C-X) of the substrates a cascade activation process that cannot be replicated by LiCo(HMDS) or KCo(HMDS).
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| http://dx.doi.org/10.1039/d3cc01216f | DOI Listing |
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