作者:Karine Valliant-Saunders、Erica Gunn、G. Robert Shelton、David A. Hrovat、Weston Thatcher Borden、James M. Mayer
DOI:10.1021/ic062468u
日期:2007.6.25
In the presence of an excess of pyridine ligand L, osmiumtetroxide oxidizes tertiary silanes (Et(3)SiH, (i)Pr(3)SiH, Ph(3)SiH, or PhMe(2)SiH) to the corresponding silanols. With L = 4-tert-butylpyridine ((t)Bupy), OsO(4)((t)Bupy) oxidizes Et(3)SiH and PhMe(2)SiH to yield 100 +/- 2% of silanol and the structurally characterized osmium(VI) mu-oxo dimer [OsO(2)((t)Bupy)(2)](2)(mu-O)(2) (1a). With L =
Studies of transition-metal oxo- and nitrido-complexes. Part 4. Reactions of osmium tetraoxide with alkynes and dienes in the presence of tertiary amines