Restricted rotation involving the tetrahedral carbon. XXVII. Rotamers of 9-(1-cyano or 1-methoxycarbonyl-1-methylethyl)triptycene derivatives carrying a substituent in 1-position.
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概要
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The title compounds were prepared by the reaction between 9-(1-cyano or 1-methoxycarbonyl-1-methylethyl)anthracene and substituted benzynes and their rotational isomers were isolated. The barriers to rotation of these compounds were found to be 35–36 kcal/mol and 32–34 kcal/mol for the processes <I>dl</I>→<I>meso</I> and <I>meso</I>→<I>dl</I>, respectively.
- 公益社団法人 日本化学会の論文
著者
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Otsuka Soichi
Department Of Applied Chemistry Faculty Of Engineering Saitama Universtiy
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Mitsuhashi Tsutomu
Department of Chemistry, Faculty of Science, The University of Tokyo
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