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Difluorooxymethylene‐Bridged Liquid Crystals: A Novel Synthesis Based on the Oxidative Alkoxydifluorodesulfuration of Dithianylium Salts
Author(s) -
Kirsch Peer,
Bremer Matthias,
Taugerbeck Andreas,
Wallmichrath Tilman
Publication year - 2001
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 - 10.1002/1521-3773(20010417)40:8<1480::aid-anie1480>3.0.co;2-m
Subject(s) - mesogen , ether , liquid crystal , combinatorial chemistry , oxidative phosphorylation , materials science , bridge (graph theory) , core (optical fiber) , chemistry , polymer chemistry , nanotechnology , crystallography , liquid crystalline , organic chemistry , composite material , medicine , optoelectronics , biochemistry
Insertion of a difluorooxymethylene bridge into the mesogenic core structure of phenylcyclohexane‐based liquid crystals results in a class of materials that exhibits a surprising and unprecedented improvement of essentially all application‐relevant properties (see scheme). A novel synthetic procedure allows the convenient large‐scale preparation of a variety of compounds based on α , α ‐difluoroalkyl ether structures.