【摘要】：以竹纖維為原料制備得到一種新型竹纖維負(fù)載鈀催化劑,通過X射線光電子能譜(XPS)、X射線衍射(XRD)、熱重分析(TG)、電感耦合等離子體原子發(fā)射光譜(ICP)、透射電鏡(TEM)等技術(shù)對催化劑進行了表征,并將其成功應(yīng)用于催化四苯硼鈉與鹵代芳烴的交叉偶聯(lián)反應(yīng)中.該竹纖維負(fù)載鈀催化劑具有良好的催化活性,當(dāng)體系以PEG 400和水(V∶V=1∶1)為溶劑,NaHCO_3為堿,在85℃條件下能以較好的產(chǎn)率獲取聯(lián)芳烴類化合物.該方法具有條件溫和,反應(yīng)時間短且收率高,催化劑經(jīng)簡單過濾即可循環(huán)使用等優(yōu)點.
[Abstract]:A new palladium catalyst supported on bamboo fiber was prepared by using bamboo fiber as raw material. The catalysts were characterized by X-ray photoelectron spectroscopy (XPS) X-ray diffraction (XRD), thermogravimetric analysis (TG), inductively coupled plasma atomic emission spectroscopy (ICP) and transmission electron microscopy (TEM). It was successfully applied to the cross-coupling reaction of sodium tetraphenylboron with halogenated aromatics. The palladium catalyst supported on bamboo fiber has good catalytic activity. When PEG400 and water (V: v: 1: 1) are used as solvent NaHCO3 as base, biarene compounds can be obtained at 85 鈩，

本文編號：2125734