Studies on transition-metal oxo and nitrido complexes. Part 8. Reactions of osmium oxo-imido complexes with alkenes

Abstract

Reaction of [OsO₃(NR)][R = Bu^t, t-pentyl, adamant-1-yl (Ad), or 1,1,3,3-tetramethylbutyl (C₈H₁₇)] and of [OsO₂(NBu^t)₂] with alkenes R′ yields alkanolaminato and diaminato complexes of stoicheiometries [{OsO₂(OR′NR)}₂] and [OsO₂(NBu^tR′NBu^t)] respectively. The adducts [OsO₃(NR)L](R = Bu^t, t-pentyl, or C₈H₁₇; L = quinuclidine) and [{OsO₃(NR)}₂L′]{R = Bu^t or C₈H₁₇, L′= 1,4-diazabicyclo[2.2.2]octane (dabo) or 1,3,5,7-tetra-azatricyclo[3.3.1.1^3.7]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.