Synthesis and characterization of new, modified terphenyl ligands: Increasing the rotational barrier for flanking rings
作者:Corneliu Stanciu、Anne F. Richards、James C. Fettinger、Marcin Brynda、Philip P. Power
DOI:10.1016/j.jorganchem.2006.01.046
日期:2006.5
The synthesis and characterization of some new terphenyl ligands, modified by meta alkyl substitution on the central ring are described. The new ligands were designed for potential applications in the stabilization of novel low valent main group species or transition metal heteronuclear multiply bonded compounds. Compounds 1-I-C6H1-2,6-Ph2-3,5-Pr2i (1), 1-I-C6H1-2,6-Mes2-3,5-Pr2i (3) (Mes = 2,4,6-trimethylphenyl)
描述了一些新的三联苯配体的合成和表征,这些新的三联苯配体通过中心环上的间 烷基取代进行修饰。这些新的配体被设计用于稳定新型低价主族物质或过渡金属异核多键化合物的潜在应用。化合物1-I-C6H1-2,6-Ph2-3,5-Pr2i (1),1-I-C6H1-2,6-Mes2-3,5-Pr2i (3)(Mes = 2,4,6 -三甲基苯基),1-I-C6H1-2,6-Trip2-3,5-Pr2i (5)(Trip = 2,4,6-三异丙基苯基)和1-I-C6H1-2,6-Dipp2-3, 5-Pr2i (6)(卜先生= 2,6-二异丙基),通过加入相应的芳基Grignard试剂的两个当量通过用锂化卜产生的苯炔中间体得到Ñ起始原料2,4-二氯-5- isopropylcumene的锂,接着用碘淬灭。得到的锂盐2和4的锂盐是用一当量的n BuLi处理母体三苯基碘化物。所有化合物均分离为无色晶体或白色粉末。它们的特征在于1