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Pyridine‐Bridged Benzimidazolium Salts: Synthesis, Aggregation, and Application as Phase‐Transfer Catalysts
Author(s) -
Tu Tao,
Assenmacher Wilfried,
Peterlik Herwig,
Schnakenburg Gregor,
Dötz Karl Heinz
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801628
Subject(s) - stacking , van der waals force , acetonitrile , chemistry , catalysis , pyridine , phase (matter) , hydrogen bond , alkylation , combinatorial chemistry , polymer chemistry , organic chemistry , chemical engineering , molecule , engineering
Simply structured benzimidazolium salts efficiently gelate a variety of polar organic solvents. π‐Stacking, hydrogen bonding, and van der Waals interactions are responsible for the self‐assembly process. A packing model is deduced from the single crystal structure of gelator 1 . Fiber aggregates of benzimidazolium salts in acetonitrile are efficient phase‐transfer catalysts (PTCs) for N‐alkylation.