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Synlett 2004(1): 182-186
DOI: 10.1055/s-2003-43346
DOI: 10.1055/s-2003-43346
CLUSTER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of a Pyridinophane with endo-Annular Donor Sites
Further Information
Received
16 September 2003
Publication Date:
26 November 2003 (online)
Publication History
Publication Date:
26 November 2003 (online)
Abstract
Our synthetic efforts toward the realization of cross-conjugated macrocycles containing 2,6-diethynylpyridine sub-units are described. Macrocycle 4b was efficiently constructed from easily accessible building blocks using a series of palladium-catalyzed cross-coupling and copper-catalyzed homocoupling reactions. The synthesis, characterization and solid state characteristics of this macrocycle, as well as its precursors are provided in the discussion that follows.
Key words
alkynes - cross-conjugation - cross-coupling - homocoupling - macrocycles - pyridines
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