Aluminum complexes based on pyridine substituted alcohols: synthesis, structure, and catalytic application in ROP
作者:Marina M. Kireenko、Ekaterina A. Kuchuk、Kirill V. Zaitsev、Viktor A. Tafeenko、Yuri F. Oprunenko、Andrei V. Churakov、Elmira Kh. Lermontova、Galina S. Zaitseva、Sergey S. Karlov
DOI:10.1039/c5dt01001b
日期:——
Aluminum methyl derivatives, 2–4a, were obtained by the reaction of AlMe3 with the corresponding ligand or transmetallation reactions of germylenes. Aluminum chloride complexes, 3–4b, were obtained by substitution of the Me group under the action of chlorinating agents. Methoxy-, 2–4c, or benzyloxy-, 2d, aluminum complexes were synthesized in transalkoxylation reaction of Me2Al(OX) (X = Me, Bn) by the
一系列取代的吡啶二元醇(2,6-双(羟烷基)吡啶)1-4被用于合成各种类型的铝配合物。甲基铝衍生物2-4a是通过AlMe 3与相应配体的反应或亚甲基的金属转移反应而获得的。氯化铝配合物3–4b是通过在氯化剂的作用下取代Me基而获得的。甲氧基,2-4C,或苄氧基,2D,铝配合物在我transalkoxylation反应合成2Al(OX)(X = Me,Bn)由相应的配体组成。通过多核NMR和X射线分析对获得的所有复合物进行了彻底研究。已经确定,配体的结构(碳原子数)决定了形成的配合物的性质。化合物用作L-丙交酯和ε-己内酯的开环聚合反应的引发剂,并显示出适度的活性,具有受控或永生的特性。