کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1339750 | 979714 | 2007 | 6 صفحه PDF | دانلود رایگان |
Treatment of the zwitterionic hydrocarbyl compound Co2(CO)4[μ-PhCC(H)PPh2CC(PPh2)C(O)OC(O)] (1) with PMe3 leads to CO insertion and formation of the acyl species Co2(CO)3(PMe3)[μ-PhC(CO)C(H)PPh2CC(PPh2)C(O)OC(O)] (2). Compound 2 is unstable at elevated temperatures and loses CO to produce the PMe3-substituted compound Co2(CO)3(PMe3)[μ-PhCC(H)PPh2CC(PPh2)C(O)OC(O)] (3) as the major product. Compounds 2 and 3 have been isolated and characterized in solution by IR and NMR (13C and 31P) spectroscopies and in the solid state by X-ray diffraction analyses.
The zwitterionic hydrocarbyl compound Co2(CO)4[μ-PhCC(H)PPh2CC(PPh2)C(O)OC(O)] (1) reacts with PMe3 to afford the acyl species Co2(CO)3(PMe3)[μ-PhC(CO)C(H)PPh2CC(PPh2)C(O)OC(O)] (2). Decarbonylation of 2 is observed on thermolysis and furnishes a mixture containing the PMe3-substituted compound Co2(CO)3(PMe3)[μ-PhCC(H)PPh2CC(PPh2)C(O)OC(O)] (3) and 1. Compounds 2 and 3 have been isolated and fully characterized by IR and NMR spectroscopies and X-ray diffraction analyses.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 26, Issue 14, 31 August 2007, Pages 3737–3742