期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 78, 期 5, 页码 2040-2045出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo3020819
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资金
- American Chemical Society [41685-ACl]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [958996] Funding Source: National Science Foundation
In recent years, we have used the photocyclizations of diarylethylenes to synthesize a number of [n]phenacenes in the hope that they might be useful as the bridging groups for electron transfer processes in donor-bridge-acceptor molecules. Because [n]phenacenes with n > 5 are very insoluble, their synthesis and characterization has required the attachment of solubilizing substituents such as tert-butyl. The studies of Pascal and co-workers of some large polynuclear aromatic compounds having multiple phenyl substituents prompted us to explore the use of phenyls as alternative solubilizing groups for [n]phenacenes. Although phenyl groups turned out to provide significantly less solubilization than tert-butyl groups in these compounds, we found some interesting structural comparisons of the phenyl-substituted and tert-butyl-substituted [n]phenacenes.
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