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Divergent ring-opening coupling between cyclopropanols and alkynes under cobalt catalysis
Cobalt–diphosphine catalysts promote ring-opening coupling reactions between cyclopropanols and unactivated internal alkynes, affording either β-alkenyl ketones or multisubstituted cyclopentenol derivatives in good yields ...
Cobalt-catalyzed, N–H imine-directed hydroarylation of styrenes
A cobalt-catalyzed, N–H imine-directed hydroarylation reaction of styrenes is reported. A variety of diaryl and aryl alkyl N–H imines participated in the reaction to afford the corresponding branched adducts in good yield ...
Cobalt-catalyzed intramolecular reactions between a vinylcyclopropane and an alkyne : switchable [5+2] cycloaddition and homo-ene pathways
Cobalt–diphosphine catalysts have been found to promote intramolecular reactions between a vinylcyclopropane and an alkyne to selectively afford either the [5+2] cycloaddition product or the homo‐ene reaction product under ...