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Synthesis 2007(21): 3323-3328
DOI: 10.1055/s-2007-990807
DOI: 10.1055/s-2007-990807
PAPER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of Rigid Oligofluorene Stars
Weitere Informationen
Publikationsverlauf
Received
18 July 2007
Publikationsdatum:
21. September 2007 (online)
Abstract
In this paper we present the synthesis of a tetrahedral oligofluorene-functionalized adamantane, via an iterative synthetic approach, using Suzuki coupling methodology. Tetraphenyladamantane with two fluorene units on each arm were successfully synthesized. These tetrahedral oligofluorene adamantane cores exhibited good optical and thermal properties. One problem in this synthesis of these materials was that the homocoupling of the core became more prevalent as the molecular size increased. This is possibly a common defect in many controlled synthesis of large polyarenes.
Keywords
Pd-coupling - ipso-substitution - conjugation - organometallic reagents - silylation