文献类型：期刊文献

英文题名：Palladium complex embedded crosslinked polystyrene nanofibers as a green and efficient heterogeneous catalyst for coupling reactions

作者：Zhang, Benben[1];Ye, Zeyu[1];Qin, Min[1];Wang, Qingqing[1];Du, Yijun[1];Qi, Chenze[1];Shao, Linjun[1]

机构：[1]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Zhejiang, Peoples R China

年份：2021

卷号：138

期号：2

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000561918900001)、、EI(收录号：20203509094460)、Scopus(收录号：2-s2.0-85089739081)、WOS

基金：National Natural Science Foundation of China, Grant/Award Numbers: 11705117, 11905132

语种：英文

外文关键词：crosslinking; electrospinning; fibers; polystyrene

外文摘要：A simple and green chemical modification coupled with electrospinning technique has been developed to incorporate tetrakis(triphenylphosphine)palladium [Pd(PPh3)(4)] inside crosslinked polystyrene nanofibers (Pd@CPS) as an efficient and stable heterogeneous palladium catalyst. The catalytic activities and recyclabilities of the prepared Pd@CPS catalyst have been evaluated by using Suzuki and Heck reactions of various aromatic halides separately with phenylboronic acid and alkenes. The Pd@CPS exhibited high-catalytic activities for the Suzuki and Heck reactions of aromatic iodides to afford the products in excellent yields (coupling yields >88%). The catalytic activities and the nanofiber structure remained essentially unchanged even after recycling for five times. The high activities and stabilities of the prepared Pd@CPS catalyst can be attributed to the ultrafine fiber and embedment of palladium active species inside the nanofibers.