133909-61-2Relevant academic research and scientific papers
Vinylidene Transition Metal Complexes, XVII. - Synthesis of trans- CPh)(PMe2tBu)3>, and of some Dihydridoiridium(III) Complexes
Werner, Helmut,Dirnberger, Thomas,Hoehn, Arthur
, p. 1957 - 1962 (2007/10/02)
2 (1) reacts with PMetBu2 in the presence of H2 to give (2).Treatment of 2 with acetylene yields the vinylidene complex trans- (3).The reaction of 1 with PMePh2 or PMe2tBu in the presence of H2 leads to the formation of fac- (4a, 5a), which on warming to 60 deg C rearrange to give the more stable mer isomers 4b, 5b.Treatment of 1 with PMePh2 or PMe2tBu and phenylacetylene affords the hydrido(phenylethynyl)iridium(III) compounds mer-CPh)(PR3)3> (8, 9), which could not be converted by phosphine elimination to the corresponding (phenylvinylidene)iridium complexes.The synthesis of trans- (11) has been achieved by CO abstraction from CH)(CO)(PPh3)2> (13) by using trimethylamine oxide. Key words: (Vinylidene)iridium(I) complexes; iridium(III), dihydrido complexes; isomerization, fac-mer; iridium(III), (phenylethynyl) complexes, CO abstraction.
