Abstract
The parent and dipropyl-substituted anti (1a,b) and syn doublebent (2a,b) [5]phenylenes have been assembled by CpCo-catalyzed double cyclization of regiospecifically constructed appropriate hexaynes. 1H NMR, NICS, and an X-ray structural analysis of 1a reflect the aromatizing effect of double angular fusion on the central ring of the linear [3]phenylene substructure.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2249-2252 |
| Number of pages | 4 |
| Journal | Organic Letters |
| Volume | 6 |
| Issue number | 13 |
| DOIs | |
| State | Published - Jun 24 2004 |
| Externally published | Yes |