Studies on transition-metal oxo and nitrido complexes. Part 8. Reactions of osmium oxo-imido complexes with alkenes
Abstract
Reaction of [OsO3(NR)][R = But, t-pentyl, adamant-1-yl (Ad), or 1,1,3,3-tetramethylbutyl (C8H17)] and of [OsO2(NBut)2] with alkenes R′ yields alkanolaminato and diaminato complexes of stoicheiometries [{OsO2(OR′NR)}2] and [OsO2(NButR′NBut)] respectively. The adducts [OsO3(NR)L](R = But, t-pentyl, or C8H17; L = quinuclidine) and [{OsO3(NR)}2L′]{R = But or C8H17, L′= 1,4-diazabicyclo[2.2.2]octane (dabo) or 1,3,5,7-tetra-azatricyclo[3.3.1.13.7]decane; R = t-pentyl, L′= dabo} react with alkenes R′ to give [OsO2(OR′NR)L] and [{OsO2(OR′NR)}2L′]. The structures of these complexes are discussed.