Eine effiziente Synthesemethode für DiarylallenyIiden(pentacarbonyl)chrom- und -wolfram-Komplexe -Kristallstruktur von (CO)₅Cr=C=C=CPh₂ / An efficient Synthesis of Diarylallenylidene Pentacarbonyl Chromium and Tungsten Complexes - Crystal Structure of (CO)₅Cr=C=C=CPh₂

Abstract

An efficient synthesis of diarylallenylidene pentacarbonyl chromium and tungsten com­plexes is presented. Irradiation of M(CO) 6 in THF affords (CO) s M[THF], Substitution of the THF ligand by diarylpropargylalcoholate and subsequent desoxygenation with COCF gives the title compounds in good yield. (The structure of diphenylallenylidene pentacarbonyl chromium has been determined by X-ray structure analysis