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Synfacts 2010(4): 0495-0495
DOI: 10.1055/s-0029-1219463
DOI: 10.1055/s-0029-1219463
Polymer-Supported Synthesis
© Georg Thieme Verlag
Stuttgart ˙ New York
Dihydroxylation of Olefins with a Dendrimer-Supported Osmium Catalyst
K.-i. Fujita*, T. Ainoya, T. Tsuchimoto, H. Yasuda
National Institute of Advanced Industrial Science and Technology, Tsukuba and Meiji University, Kawasaki, Japan
Weitere Informationen
Publikationsverlauf
Publikationsdatum:
22. März 2010 (online)
Significance
Dendrimer-supported osmium catalyst 2 was prepared by the reaction of N,N,N′,N′-tetramethylethylenediamine with poly(benzyl ether) dendric bromide G3-Br, followed by treatment with potassium osmate (eq.1). The catalyst 2 promoted the dihydroxylation of olefins 3 to give the corresponding diol 4 in 86-94% yield (9 examples).