Abstract
Three 1-aryl-3-methyl-3-phospholene 1-oxides were prepared in optically active form by resolution with TADDOLderivatives, that, together with the racemic forms, were converted to the corresponding phosphine-borane adducts and cisbis( phospholeno)-dichloroplatinum complexes after deoxygenation by trichlorosilane. The stereostructures of the Pt-complexes were evaluated by high level quantum chemical calculations. By adding SnCl2 cocatalyst, the complexes were tested as in situ catalysts in the hydroformylation of styrene. The activity of the new Pt-complexes was, in most cases higher, than that of the analogues described earlier.
Keywords: 3-Phospholene oxide, catalyst precursor, deoxygenation, hydroformylation, optical resolution, P-ligand, phosphine-boranes, platinum complexes, stereostructure, theoretical calculations.
Graphical Abstract
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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