新奇连接酚的二度( imidazolium )盐, H <潜水艇class=“ a-plus-plus ”> 3 LCl <潜水艇class=“ a-plus-plus ”> 2 ( L ? =?O-4-C ( CH <潜水艇class=“ a-plus-plus ”> 3 ) 3 -C 6 H <潜水艇class=“ a-plus-plus “> 2 -2,6-di[CH 2 {C(NCHCHNAr)}] 2 , Ar ?=? 2,6-diisopropylphenyl , 1 ),被设计并且过去常准备一个离子的熨斗( III )复杂[ H <潜水艇class=“ a-plus-plus ”> 2 L ][ FeCl <潜水艇class=“ a-plus-plus ”> 4 < /s 建筑群 2 是为忍受氢的烷基氯化物的芳基 Grignard 跨 coupling 的高度有效的催化剂。而且,建筑群 2 是可重用的并且没有重要损失,能在催化活动在至少八次被再使用。
A novel phenol-linked bis(imidazolium) salt, H3LCl2 (L = O-4-C(CH3)3-C6H2-2,6-di[CH2{C(NCHCH- NAr)}]2, Ar = 2,6-diisopropylphenyl, 1), was designed and used to prepare an ionic iron(III) complex [H2L][FeCl4] (2). Complex 2 was a highly efficient catalyst for aryl Grignard cross-coupling of alkyl chlorides bearing β-hydrogens. Furthermore, complex 2 was reusable and could be reused in at least eight times without significant loss in catalytic activity.