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Palladium complex embedded crosslinked polystyrene nanofibers as a green and efficient heterogeneous catalyst for coupling reactions
Author(s) -
Zhang Benben,
Ye Zeyu,
Qin Min,
Wang Qingqing,
Du Yijun,
Qi Chenze,
Shao Linjun
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49666
Subject(s) - phenylboronic acid , catalysis , palladium , polystyrene , nanofiber , suzuki reaction , polymer chemistry , triphenylphosphine , coupling reaction , materials science , heck reaction , heterogeneous catalysis , chemical engineering , chemistry , organic chemistry , nanotechnology , composite material , polymer , engineering
A simple and green chemical modification coupled with electrospinning technique has been developed to incorporate tetrakis(triphenylphosphine)palladium [Pd(PPh 3 ) 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.