Cyclo[m]pyridine[n]pyrroles: Hybrid Macrocycles That Display Expanded 蟺-Conjugation upon Protonation
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- 作者：Zhan Zhang ; Jong Min Lim ; Masatoshi Ishida ; Vladimir V. Roznyatovskiy ; Vincent M. Lynch ; Han-Yuan Gong ; Xiaoping Yang ; Dongho Kim ; Jonathan L. Sessler
- 刊名：The Journal of the American Chemical Society
- 出版年：2012
- 出版时间：March 7, 2012
- 年：2012
- 卷：134
- 期：9
- 页码：4076-4079
- 全文大小：282K
- 年卷期：v.134,no.9(March 7, 2012)
- ISSN：1520-5126
文摘
Novel hybrid cyclo[m]pyridine[n]pyrroles have been synthesized using Suzuki coupling. Their NMR and optical spectroscopic features and solid state structural parameters provide support for the proposal that these species are best described as locally aromatic compounds devoid of long-range intersubunit conjugation. However, an extension of the 蟺-conjugation in the macrocycles can be realized through protonation, as inferred from optical spectroscopic and X-ray diffraction-based structural studies.