Formation of triosmium µ-carbyne complexes by ring-opening and carbon–hydrogen activation of 3,3-dimethylcyclopropene; rearrangement of an alkyl µ-carbyne to a µ-vinyl complex via a 1,2-hydrogen shift

Abstract
Reaction of 3,3-dimethylcyclopropene with [H2Os3(CO)10] affords [Os3(µ-H)(µ-CCH2CHMe2)(CO)10] and [Os3(µ-H)(µ-CCHCMe2)(CO)10]; the former on thermolysis rearranges successively to [Os3(µ-H)(µ-CHCHCHMe2)(CO)10] and [Os3(µ-H)23-CCHCHMe2)(CO)9].

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