functional trimethylsilylacetylenes 2(a-i) with different functional groups were synthesized from their corresponding acyl chloride (1) in good yields.

Functional trimethylsilylacetylenes 2(a-i) with different functional groups were synthesized from their corresponding acyl chloride (1) in good yields.

The protection of conjugated dienes by coordination to the tricarbonyliron fragment offers many potential applications of the resulting complexes to organic synthesis. The preparation of tricarbonyl(h4-1,3-diene)iron complexes is readily achieved by a 1-azabutadiene-catalyzed complexation of the free ligands. An asymmetric catalytic complexation of prochiral cyclohexa-1,3-dienes with pentacarbo...