Author/Authors :
Fujita، نويسنده , , Ken-ichi and Umeki، نويسنده , , Satoshi and Yamazaki، نويسنده , , Manabu and Ainoya، نويسنده , , Taku and Tsuchimoto، نويسنده , , Teruhisa and Yasuda، نويسنده , , Hiroyuki، نويسنده ,
Abstract :
We prepared magnetically recoverable osmium catalysts by use of magnetite, quaternary ammonium salts, and potassium osmate(VI), and applied them to the dihydroxylation of olefins. By employing 2 mol% of the magnetic osmium catalyst, the dihydroxylation reaction proceeded smoothly to provide the corresponding vicinal diol in a good chemical yield. The osmium catalyst was readily recovered by use of an external magnet, and was reused repeatedly.
