Structural diversity and versatility for organoaluminum complexes supported by mono- and di-anionic aminophenolate bidentate ligands
作者:Aline Maisse-François、Laurine Azor、Anne-Laure Schmitt、Ariane Coquel、Lydia Brelot、Richard Welter、Stéphane Bellemin-Laponnaz、Samuel Dagorne
DOI:10.1016/j.jorganchem.2011.09.020
日期:2012.1
contribution describes the synthesis and structural characterization of structurally diverse organoaluminum species supported by variously substituted aminophenolate-type ligands: these Al complexes are all derived from the reaction of AlMe3 with aminophenols 2-CH2NH(R)-C6H3OH (1a, R = mesityl (Mes); 1b, R = 2,6-di-isopropylphenyl (Diip)) and 2-CH2NH(R)-4,6-tBu2-C6H2OH (1c, R = Mes; 1d, R = Diip). The low
本贡献描述了由各种取代的氨基酚盐型配体支持的结构多样的有机铝物质的合成和结构表征:这些Al络合物均源自AlMe 3与氨基酚2-CH 2 NH(R)-C 6 H 3的反应OH(1a,R =均三甲苯(Mes); 1b,R = 2,6-二异丙基苯基(Diip))和2-CH 2 NH(R)-4,6- t Bu 2 -C 6 H 2 OH(1c,R = Mes;1d,R = Diip)。AlMe 3与1a的低温反应- b容易得到相应的Al二聚体种类[μ-η 1,η 1 -N,O- 2-CH 2 NH(R)-C 6 H ^ 4 ö}] 2的Al 2我4(图2a - b),由12元环aluminacycles具有两个μ-η 1,η 1 - N,O -aminophenolate单元,如通过X射线晶体学研究测定。加热的甲苯溶液2a中(80℃,3小时),得到双核铝的定量和直接形成复合体A1 [η 2 -N;