Cyclooligomerization of Butadiene and Transition Metal π‐Complexes

Abstract

Abstract Advances in the fields of synthesis and reactions of some medium‐sized hydrocarbon rings are reported and in connection therewith on novel π‐complexes of transition metals. Catalytic syntheses yield 1,5,9‐cyclododecatriene, 1,5‐cyclooctadiene, and 1,5‐cyclodecadiene either from butadiene or from butadiene and ethylene. The reactions proceed very readily.