Synthesis, structure, spectra and reactivity of iron(iii) complexes of facially coordinating and sterically hindering 3N ligands as models for catechol dioxygenases
作者:Karuppasamy Sundaravel、Thirumanasekaran Dhanalakshmi、Eringathodi Suresh、Mallayan Palaniandavar
DOI:10.1039/b809142k
日期:——
N-dimethylformamide and dichloromethane solutions. The adducts [Fe(L)(DBC)(Sol)]+ undergo cleavage of DBC2− in the presence of molecular oxygen to afford both intra- and extradiol cleavage products. The extradiol products are higher in dichloromethane than in DMF solution and the extradiol to intradiol product selectivity (E/I, 7.2 : 1–18.5 : 1) observed decreases upon increasing the steric bulk of N-alkyl substituent
位阻和系统修饰的三齿3N供体的一系列1:1铁(III)配合物配体 已被分离出来并作为二醇外切的功能模型进行了研究 儿茶酚双加氧酶。它们均为[Fe(L)Cl 3 ]类型,其中L为N-甲基-N '-(吡啶-2-基甲基)乙二胺 (L1), N-乙基-N '-(吡啶-2-基甲基)乙二胺 (L2), N-苄基-N '-(吡啶-2-基甲基)乙二胺 (L3), N,N-二甲基-N '-(吡啶-2-基甲基)乙二胺 (L4), N′-甲基-N ′-(吡啶-2-基甲基)-N,N-二甲基乙二胺 (L5), N′-乙基-N ′-(吡啶-2-基甲基)-N,N-二甲基乙二胺 (L6)和 N'-苄基-N '-(吡啶-2-基甲基)-N,N-二甲基乙二胺(L7)。他们的特点是元素分析以及光谱和电化学方法。已经成功地确定了配合物[Fe(L2)Cl 3 ] 2,[Fe(L3)Cl 3 ] 3和[Fe(L7)Cl 3 ] 7的X