ISSN:
0009-2940
Keywords:
Osmium complexes/Oximato ligands, bidentate/Ruthenium complexes/Ring opening,
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Synthesis and Reactions of Hydrido(oxime), Hydrido(oximato) and Alkenyl(oximato) Complexes of Ruthenium and OsmiumThe carbonyl(hydrido) complexes MHCl(CO)[PMe(tBu)2]2 (4: M = Ru; 5: M = Os) react with aldoximes and ketoximes to give the octahedral hydrido(oxime)ruthenium and -osmium compounds MHCl(CO)[N(OH)=CRR′](PMe(tBu)2]2 (8-13) in high yields. Using MHCl(CO)(PiPr3)2 (6, 7) as starting materials, the complexes MHCl(CO)[N(OH)=CRR′](PiPr3)2 (14-16) are obtained. Reactions of 9 (M = Os; R = R′ = CH3) illustrate that the oxime ligand in the hydrido(oxime) compounds is easily displaced by Lewis bases. Either from 4, 5 and Na[N(O) = CRR′] in methanol or from 8-13 and NaH in THF the hydrido(oximato) complexes 20-25 in which the oximato ligand is coordinated via N and O, are formed almost quantitatively. CO opens the three-membered ring by cleavage of the M-N bond. Analogously, the alkenyl(oximato) compounds 28-30 are obtained from M[(E)-CH = CHPh]Cl(CO)[PMe(tBu)2)2]2 (18: M = Os; 27: M = Ru) with Na[N(O) = CRR′].
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901230408
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