Preparation of hexacarbonyldicobalt-complexed 1,3-dioxa-2-silacycloheptynes

Article abstract of DOI:10.1021/om980589z

The reaction between 2-butyne-1,4-diol-hexacarbonyldicobalt and a series of dichlorodi-alkylsilanes (R = Me, Et, CH=CH₂, and Ph) in the presence of triethylamine results in the formation of the corresponding cobalt-complexed 1,3-dioxa-2-silacycloheptynes, 3-7, as the major products. Complexed silacyclononynes, 8 and 9, and a spirocyclic analogue 10, have also been prepared and characterized. The solid-state structures of 3 and 10 have been determined by X-ray diffraction studies. ? 1998 American Chemical Society.