Mechanistic Studies of Aliphatic Ligand Hydroxylation of a Copper Complex by Dioxygen: A Model Reaction for Copper Monooxygenases
作者:Shinobu Itoh、Hajime Nakao、Lisa M. Berreau、Toshihiko Kondo、Mitsuo Komatsu、Shunichi Fukuzumi
DOI:10.1021/ja972809q
日期:1998.4.1
studies on the aliphatic ligand hydroxylation in a copper complex of tridentate ligand 1a N,N-bis[2-(2-pyridyl)ethyl]-2-phenylethylamine} by O2 have been performed in order to shed light on the structure and reactivity of the active oxygen species of our functional model for copper monooxygenases (Itoh, S.; et al. J. Am. Chem. Soc. 1995, 117, 4714). When the copper complex [CuII(1a)(ClO4)2] was treated
已经对三齿配体 1a N,N-双[2-(2-吡啶基)乙基]-2-苯乙胺}的铜络合物中脂肪族配体羟基化的机理进行了研究,以阐明 O2 的结构和我们的铜单加氧酶功能模型的活性氧物种的反应性(Itoh, S.;等人,J. Am. Chem. Soc. 1995, 117, 4714)。当铜配合物 [CuII(1a)(ClO4)2] 在 CH2Cl2 中在 O2 气氛下用等摩尔量的安息香和三乙胺处理时,在配体的苄基位置选择性地发生有效的羟基化,以提供氧化产物 2a N,N -双[2-(2-吡啶基)乙基]-2-苯基-2-羟基乙胺}。使用 18O2 的同位素标记实验证实,2a 中 OH 基团的氧原子来自分子氧。使用 UV-vis 的光谱分析,