| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5269777 | Tetrahedron Letters | 2014 | 4 Pages |
Abstract
New helically chiral substituted heptacyclic systems have been prepared from a simple phenanthrene building block in good yields and purity, via a four-step sequence involving palladium-catalysed Heck coupling and oxidative photocyclization. X-ray crystal structure analysis indicated that the conformation resembled that of the unsubstituted heptahelicene. The optical properties of these heptacyclic helicenes were investigated and show interesting behaviour.
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Physical Sciences and Engineering
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