Metal‐Centered Coupling of Two Carbyne Ligands To Form an Alkyne Ligand

Alexander Constantin Filippou, Walter Grünleitner, Christian Völkl, Paul Kiprof

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Bis(carbyne) complexes are discussed as key intermediates of numerous CC coupling reactions of carbyne‐complexes to alkyne complexes—an experimental detection of such intermediates has now been possible in the reaction of the cationic bis(carbene) complex 1 with bromine or ethyl isocyanide, which leads to the alkyne complexes 2 and 3 (see also Highlight on p. 1119). Thus, in principle, the prerequisites under which processes such as the catalytic hydrogenation of CO proceed, are now also better understood. Counter ion = BF 4⊖. (Figure Presented.)

Original languageEnglish (US)
Pages (from-to)1167-1169
Number of pages3
JournalAngewandte Chemie International Edition in English
Issue number9
StatePublished - Sep 1991


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