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Catalysts for Suzuki Polycondensation: Ionic and “Quasi‐Ionic” Amphipathic Palladium Complexes with Self‐Phase‐Transfer Features
Author(s) -
Li Jing,
Fu Hongwei,
Hu Pan,
Zhang Zilong,
Li Xiao,
Cheng Yanxiang
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201202162
Subject(s) - transmetalation , palladium , toluene , condensation polymer , amphiphile , ionic bonding , catalysis , phase (matter) , chemistry , polymer chemistry , ionic liquid , materials science , chemical engineering , combinatorial chemistry , organic chemistry , polymer , copolymer , ion , engineering
Poly(9,9‐dioctylfluorene) (PFO) with M n values above 100 000 g mol −1 in a toluene/water system and M n values up to 600 000 g mol −1 in a THF/water system has been obtained by improved Suzuki polycondensation using a new kind of amphipathic palladium catalyst with self‐phase‐transfer features, which could overcome the disadvantage caused by the immiscible biphasic mixture and accelerate the transmetalation step (see figure).