An unusual nitrosyl-diazoalkane coupling reaction. Synthesis,structure and reactivity of the aldoxime-dinitrogen complex,OsCl2(N2)[N(OH)CHCO2Et](PPh3)2 |
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| Authors: | MA Gallop CEF Rickard WR Roper |
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| Institution: | Department of Chemistry, University of Auckland, Auckland New Zealand |
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| Abstract: | Reaction of OsCl(NO)(PPh3)3 with IC(C2)CO2 Et gives a purple species which, on treatment with HCl, affords OsCl2(N2)N(OH)CHCO2Et] (PPh3)2. This aldoxime-dinitrogen complex, structurally characterised by X-ray crystallography, is thought to arise from a coupling reaction of the diazoalkane with the nitrosyl ligand in the substrate. Dehydrating agents convert the osmium-bound aldoxime to a nitrile ligand. |
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