The chemical reactivity of tetraisobutyldialuminum towards ethers, nitrogen lewis bases, aluminumtrimethyl, borontrichloride and ethylene
作者:Eugene P. Schram、Mark M. Miller
DOI:10.1016/s0020-1693(00)82234-3
日期:1986.3
Abstract Treatment of Al 2 i Bu 4 with THF and Et 2 O results in partial decomposition to afford Al metal while reaction with γ-picoline products a bis-adduct of limited stability. Reactions with AlMe 3 and BCl 3 , separately, involves ligand exchange with accompanying disproportionation to yield Al metal. Dimethylamine induces disproportionation to afford Al i Bu 3 ·HNMe 2 and an intemediate trialuminum
摘要用THF和Et 2 O处理Al 2 i Bu 4会导致部分分解,从而生成金属铝,而与γ-甲基吡啶的反应则是稳定性有限的双加合物。与AlMe 3和BCl 3的反应分别涉及配体交换和伴随的歧化反应,生成铝金属。二甲胺诱导歧化,得到Al i Bu 3·HNMe 2和中间体三聚体。后者经历AlAl键断裂,形成H 2,i Bu 2 AlNMe 2和[Me 2 N-(i Bu)AlAli Bu 2] 2·Al 2 iBu 4消除Me 2CCH2。在80℃下在溶液中溶解,并且链状的AlH中间体与乙烯反应,得到AlEt和AlCH 2 CH 2 CH 2 CH 3部分。