Crystalline Structure of<i>N</i>-(<i>S</i>)-2-Heptyl (1<i>R</i>,2<i>R</i>)-2-(2,3-Anthracenedicarboximido)cyclohexanecarboxamide That Differs from Its Preferred Conformation in the Solvent Used for Crystallization
作者:Kazuaki AKASAKA、Takashi OHTAKI、Chizuko KABUTO、Takeshi KITAHARA、Hiroshi OHRUI
DOI:10.1271/bbb.69.2002
日期:2005.1
(1), which was crystallized from methanol, was determined by an X-ray analysis and had a different conformation from its preferred one in CD3OD by a 1H-NMR analysis. Inter- and intra-molecular CH-pi interaction in a crystal plays a very important role in crystal packing. The preferred conformation of the amide derivative in a solution allows us to exploit (1R,2R)-2-(2,3-anthracenedicarboximido)cyclohexanecarbonyl
由甲醇结晶的N-(S)-2-庚基(1R,2R)-2-(2,3-蒽二酰胺基亚氨基)环己酰胺(1)的晶体结构通过X射线分析确定并具有通过1 H-NMR分析,其与CD3OD中的构象不同。晶体中分子间和分子内CH-pi相互作用在晶体堆积中起着非常重要的作用。溶液中酰胺衍生物的优选构象使我们能够利用(1R,2R)-2-(2,3-蒽二羧酸羧酰亚胺基)环己烷羰基氯作为转化试剂通过1H-NMR确定手性胺的绝对构型。