Cobalt-catalysed [6+2] cycloaddition of internal alkynes and terminal alkenes with cycloheptatriene

Article abstract of DOI:10.1055/s-0029-1216900

The cobalt-catalysed [6+2] cycloaddition of cycloheptatriene with internal alkynes as well as with terminal alkenes is described. The cycloaddition process is most efficiently catalysed by cobalt dibromide[bis(triisopropylphosphite)] complexes in dichloro