Synthesis and Chiroptical Properties of Double-Helical (M)- and (P)-o-Oligophenylenes

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• 作者：Jing-Xing Chen ; Jian-Wei Han ; Henry N. C. Wong
• 刊名：Organic Letters
• 出版年：2015
• 出版时间：September 4, 2015
• 年：2015
• 卷：17
• 期：17
• 页码：4296-4299
• 全文大小：384K
• ISSN：1523-7052

文摘

All of the M and P isomers of optically pure oligophenylenes with 6, 8, 10, and 12 phenyl rings were synthesized and fully characterized. The Suzuki cross-coupling reaction has been revealed to be a viable strategy in the syntheses of tetraphenylene derivatives, which, together with the copper-mediated oxidative cross-coupling reaction, were employed in the quest for the oligophenylenes. X-ray diffraction analysis in combination with specific rotation and circular dichroism spectroscopy unambiguously identified the unique covalent double-helical frameworks of these oligophenylene molecules.