Abstract
A novel, flexible synthesis of hemispherands {2,5,8-trioxa[9](3,3″) m-terphenylophanes 5a-d} with different central aromatic groups is described. The key step comprises the introduction of the central aromatic ring in the last step of the synthesis via a Suzuki cross-coupling reaction using palladium tetrakis(triplienylphosphine) as a catalyst and sodium or potassium cations serving as a template ion in the macrocyclization.
Original language | Undefined |
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Pages (from-to) | 354-356 |
Number of pages | 3 |
Journal | Synlett |
Volume | 0 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1992 |
Keywords
- METIS-106779
- IR-12598