Synthesis of Beltenes by Reactions of 5,6,11,12‐Tetradehydrodibenzo[<i>a</i>,<i>e</i>]cyclooctene with [CpCo(CO)₂] Derivatives

Abstract

Cobalt studs the beltenes shown (R=H, CO2Me, SiMe3, 5 Me), which consist of annelated, conjugated four- and eight-membered rings. These strained molecules were synthesized in a one-pot reaction by a template supported trimerization of 5,6,11,12-tetradehydrodibenzo[a,e]cyclooctene.