(Catecholato)iron(III) complexes with tetradentate tripodal ligands containing substituted phenol and pyridine units as structural and functional model complexes for the catechol-bound intermediate of intradiol-cleaving catechol dioxygenases
作者:Ryo Yamahara、Seiji Ogo、Yoshihito Watanabe、Takuzo Funabiki、Koichiro Jitsukawa、Hideki Masuda、Hisahiko Einaga
DOI:10.1016/s0020-1693(99)00604-0
日期:2000.4
Abstract This paper reports the synthesis and structures of (catecholato)iron(III) complexes with tetradentate tripodal ligands (L R′,R″ =2-hydroxy-3-R′-5-R″-phenyl-bis(2-pyridylmethyl)amine}) containing substituted phenol and pyridine units: [Fe III (L R′,R″ )(DBC)] ( 1a : R′,R″=H,H; 1b : R′,R″=Me,Me; and 1c : R′,R″=H,Cl, DBC=3,5-di- tert -butylcatecholato). X-ray structure analysis has revealed that
摘要本文报道了具有四齿三脚形配体(LR',R''= 2-羟基-3-R'-5-R''-苯基-双(2-吡啶基甲基)的(儿茶酚基)铁(III)配合物的合成和结构含有取代的苯酚和吡啶单元的胺}):[Fe III(LR',R'')(DBC)](1a:R',R''= H,H; 1b:R',R''= Me,Me;和1c:R′,R″ = H,Cl,DBC = 3,5-二叔丁基邻苯二酚)。X射线结构分析表明,围绕1a铁原子的配位安排与原儿茶酸3,4-双加氧酶(3,4-PCD)邻苯二酚结合中间体的活性位点所建议的配位安排相似。通过两种不同的方法合成了一系列复杂的1衍生物:(i)[Fe III(LR',R“)(acac)] +(2a:R',R” = H,H; 2b:R的反应′,R″ = Me,Me;和2c:R′,R″ = H,Cl,acac =乙酰丙酮(1当量)。的DBC和1个当量。N中的Et 3 N N-二