Divergent Transformations of Cobaltacyclobutenes Generated from [2 + 2]-Cycloadditions of Vinylidenes and Alkynes
{{output}}
A cobalt-catalyzed addition of a vinylidene equivalent to an alkyne generates a cobaltacyclobutene intermediate. In the presence of Zn(OTf)2, the metallacycle undergoes a Co-to-Zn transmetallation process to form an organozinc species, amenable to quenching wi... ...
