Chelation-assisted Facile C–N Bond Oxidative Addition of Spironaphthoxazines by Ru(η<sup>4</sup>-cycloocta-1,5-diene)(η<sup>6</sup>-naphthalene)
作者:Kaori Takano、Akiko Inagaki、Munetaka Akita
DOI:10.1246/cl.2006.434
日期:2006.4
β-Spironaphthoxazines 1 undergo oxidative addition of the C–N bond of the indoline moiety at ambient temperature upon treatment with the labile Ru(0) precursor, Ru(η4-cycloocta-1,5-diene)(η6-naphthalene) (2), to give the Ru(II) complex with the naphtholato-tethered 1,4-diazabuta-1,3-diene ligand 3. The reaction should be triggered by chelation of the isomeric azanaphthoquinone structure, which should bring the C–N bond to the position suitable for the oxidative addition.
β-螺萘并吖嗪1在室温下与不稳定的Ru(0)前体Ru(η4-环辛-1,5-二烯)(η6-萘) (2)反应,发生吲哚部分C-N键的氧化加成,生成Ru(II)络合物,其中萘酚基与1,4-二氮杂丁-1,3-二烯配体3相连。反应应由异构氮萘醌结构的螯合作用引发,使C-N键处于适合氧化加成的位置。