Regioselective Grafting of Two -CH2P(X)Ph2 Units (X = O, Lone Pair) onto a Resorcin[4]arene-Derived Cavitand
作者:Hani El Moll、David Sémeril、Dominique Matt、Loïc Toupet
DOI:10.1002/ejoc.200901201
日期:2010.2
first diphosphanes based on a resorcinarene-derived cavitand were obtained in six steps starting from 5,11,17,23-tetrabromo-4 (24),6( 10),12 ( 16),18(22)-tetramethylenedioxy-2,8,14,20-tetrapentylresorcin[4]arene. The synthesis of these bulky ligands was based on the selective C-2 functionalisation either of two proximal resorcinolic units or of two distal ones. The ligands, both of which were characterised
从 5,11,17,23-tetrabromo-4 (24),6(10),12 (16),18(22)-tetramethylenedioxy-2 开始,分六个步骤获得了基于间苯二酚衍生的空腔化合物的第一个二膦,8,14,20-四戊基间苯二酚[4]芳烃。这些庞大配体的合成基于两个近端间苯二酚单元或两个远端间苯二酚单元的选择性 C-2 功能化。配体均通过 X 射线衍射表征,很容易与 [RuCl 2 (p-cymene)] 2 反应形成相应的双金属配合物 [RuCl 2 (p-cymene)] 2 · L,其中空腔形状相对于游离磷烷保持不变。