Ruthenium(II) Arene Complexes with Asymmetrical Guanidinate Ligands: Synthesis, Characterization, and Application in the Base-Free Catalytic Isomerization of Allylic Alcohols
作者:Rocío Garcı́a-Álvarez、Francisco J. Suárez、Josefina Dı́ez、Pascale Crochet、Victorio Cadierno、Antonio Antiñolo、Rafael Fernández-Galán、Fernando Carrillo-Hermosilla
DOI:10.1021/om3009124
日期:2012.12.10
The ruthenium(II) arene dimer [RuCl(μ-Cl)(η6-p-cymene)}2] readily reacted with 4 equiv of guanidines (iPrHN)2C═NR (R = iPr (1a), 4-C6H4tBu (1b), 4-C6H4Br (1c), 2,4,6-C6H2Me3 (1d), 2,6-C6H3iPr2 (1e)) in toluene at room temperature to generate the mononuclear complexes [RuClκ2N,N′-C(NR)(NiPr)NHiPr}(η6-p-cymene)] (2a–e) and the easily separable guanidinium chloride salts [(iPrHN)2C(NHR)][Cl] (3a–e)
钌(II)芳烃二聚物[的RuCl(μ-Cl)的(η 6 - p -cymene)} 2 ]容易地与4当量的胍(反应我PrHN)2 C = NR(R =我PR(1A), 4-C 6 H 4 t Bu(1b),4-C 6 H 4 Br(1c),2,4,6-C 6 H 2 Me 3(1d),2,6-C 6 H 3 i Pr 2(1e))在室温下的甲苯,以产生单核配合将[RuCl κ 2 Ñ,Ñ '-C(NR)(N我PR)NH我镨}(η 6 - p -cymene)](2A - ë)和易分离的胍盐氯化物盐[(i PrHN)2 C(NHR)] [Cl](3a – e)。化合物2a – e和3a – e通过元素分析以及IR和NMR光谱进行了全面表征。的合成将[RuCl κ结构2 Ñ,Ñ '-C(N我PR)2 NH我PR}(η 6 - p -cymene)](2A)和将[RuCl κ 2 Ñ,Ñ