| Autor: |
Albrecht, Markus, Yeni, Fr�hlich, Roland |
| Předmět: |
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| Zdroj: |
Synlett; 2007, Issue 14, p2295-2297, 3p |
| Abstrakt: |
The amine-substituted quinquephenylene 1 was prepared in a Suzuki coupling approach and by reaction with terephthalic dialdehyde (7) it was transformed into the phenyl-connected diimine 8. Ring-closing metathesis with the Grubbs I or II catalyst led to the corresponding macrocycle 9. Hydrogenation resulted in the reduction of the double bonds as well as the removal of the template to yield the 56-membered macrocycle 6 in an overall yield of 43% (from 1). Direct metathesis reaction of 1 followed by hydrogenation afforded 6 in only 21% yield. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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