Nonoxidative Transient-Metal-Carbon Bond Cleaving Reactions and Their Application in a Transition-Metal Mediated Cyclopentenone Synthesis.

Article abstract of DOI:10.1016/0040-4039(92)88043-5

Cycloaddition reactions of cyclopentadienyl iron dicarbonyl 2-alkynyl complexes (1) with diphenyl ketene (2) yields transition-metal substituted cyclopentenones (4).The transition metals can subsequently be cleaved from the cyclopentenones under a variety of oxidative and nonoxidative reaction conditions.