Synthesis and mechanism of formation of dicarbonyl(η4-trimethylenemethane)(η5-pentamethylcyclopentadienyl)molybdenum tetrafluoroborate
Abstract
Reaction of [Mo(CO)3(η5-C5Me5)]BF4 generated from [Mo(CO)3(η5-C5Me5)]2 and AgBF4 with methylenecyclopropane, cis-, and trans-2,3-dimethylmethylenecyclopropanes affords dicarbonyl(η4-trimethylenemethane)(η5-pentamethylcyclopentadienyl)molybdenum tetrafluoroborate complexes, the stereochemistry of the reactions implicating a disrotatory ring-opening reaction.