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Dodecyloxy‐substituted 2,4,6‐tris(styryl)pyridines
Author(s) -
Lifka Thorsten,
Oehlhof Annette,
Meier Herbert
Publication year - 2008
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570450346
Subject(s) - chemistry , thermotropic crystal , tris , benzene , condensation , triazine , condensation reaction , polymer chemistry , medicinal chemistry , organic chemistry , polymer , catalysis , liquid crystalline , biochemistry , physics , thermodynamics
( E,E,E )‐2,4,6‐Tris(styryl)pyridines 2a‐c with 3, 6 or 9 dodecyloxy substituents were prepared by the highly stereoselective condensation reaction of collidine ( 8 ) and the corresponding phenyl‐(1‐phenyl‐methylidene)amines 7a‐c (Siegrist reaction). In contrast to the corresponding compounds with a benzene or a 1,3,5‐triazine core, 2a‐c do not show any hints for the formation of thermotropic liquid crystals. The major application of such star‐shaped systems is in the field of nonlinear optics.