Synthesis and characterization of a palladium(0) complex with cyclophosphazene bearing two diphenylphosphine ligands and application in Suzuki-Miyaura cross-coupling
作者:Maria das G. de O. e Silva、Carolina Galuppo、Bárbara C. Tudisco、Arnaldo G. de Oliveira Junior、Manoel V.F. Barrionuevo、Camilla Abbehausen、Regina Buffon
DOI:10.1016/j.ica.2018.05.016
日期:2018.10
Abstract This paper describes the synthesis of a cyclophosphazene-based diphenylphosphine ligand and a new Pd(0) complex. Infrared spectroscopy (ATR-IR), ESI+-MS, 31P, 1H and 13C NMR, Raman, WD-XRF, ICP-OES and TGA analysis show the coordination of two palladium atoms per unit of cyclophosphazene. A semiempirical calculation method was employed to find the lowest energy structure among the possible
摘要本文描述了基于环磷腈的二苯基膦配体和新的Pd(0)配合物的合成。红外光谱(ATR-IR),ESI + -MS,31P,1H和13C NMR,拉曼光谱,WD-XRF,ICP-OES和TGA分析显示,每单位环磷腈中有两个钯原子的配位。使用半经验计算方法在可能的结构中找到最低的能量结构,并使用密度泛函理论(DFT)来优化找到的结构并获得其键角,二面角,键长,原子距离并计算振动频谱(PBE / def2-TZVP(-f))。新的Pd配合物在Suzuki-Miyaura与卤代苯和苯基硼酸的交叉偶联反应中具有活性,可耐受不同的官能团。