Studies of transition-metal oxo- and nitrido-complexes. Part 4. Reactions of osmium tetraoxide with alkynes and dienes in the presence of tertiary amines
Studies on transition-metal oxo- and nitrido-complexes. Part 3. Complexes of osmium tetraoxide with tertiary amines, and their reactions with alkenes
作者:Michael J. Cleare、Paul C. Hydes、William P. Griffith、Michael J. Wright
DOI:10.1039/dt9770000941
日期:——
Osmiumtetraoxide reacts with multidentate tertiaryamines to give L·2OsO4(L = hexamethylenetetramine, 1,4-diazabicyclo[2.2.2]octane, pyrazine, or 5-methylpyrimidine) and with other amines to give L·OsO4(L = quinuclidine, isoquinoline, phthalazine, or pyridazine). Reactions of these adducts with monoalkenes R give the oxo-osmium(VI) esters L·[OsO2(O2R)](L = hexamethylenetetramine, quinuclidine, isoquinoline
osmium or other group 8 elements. Cocrystals between pyridine or pyridine N-oxide derivatives and osmium tetroxide are characterized through various techniques and rationalized as σ-hole interactions using DFT calculations and several other computational tools. We propose the term “osme bond” (OmB, Om=Fe, Ru, Os, (Hs)) for naming the noncovalent interactions wherein group 8 elements have the role of