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Increased Conversion to 2,4,6‐Triarylpyrylium Salt: Aldol Cyclotrimerization of Acetophenone in BMImPF 6 Ionic Liquid
Author(s) -
Chuang PoNeng,
Wu TsaoDong,
Liu LingKang
Publication year - 2008
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200800075
Subject(s) - chemistry , acetophenone , ionic liquid , aldol condensation , salt (chemistry) , aldol reaction , solvent , condensation , ionic bonding , organic solvent , organic chemistry , medicinal chemistry , inorganic chemistry , catalysis , chemical engineering , ion , physics , thermodynamics , engineering
Abstract Substituted acetophenone 1 in BMImPF 6 ionic liquid, heated at 120 °C for 24 h, produces β‐methylchalcone 2 , triarylbenzene 3 , and triarylpyrylium salt 4. BMImPF 6 catalyzes the self‐aldol condensation of 1 , whose cyclotrimerization gives an increased conversion to 4 at the expense of 3 normally obtained from the cyclotrimerization of 1 in common organic solvent.