Induced Preference for Axial Chirality in a Triarylmethylium o, o-Dimerupon Complexation with Natural gamma-Cyclodextrin : Strong ECD Signaling and Fixation of Supramolecular Chirality to Molecular Chirality
Induced Preference for Axial Chirality in a Triarylmethylium o, o-Dimerupon Complexation with Natural gamma-Cyclodextrin : Strong ECD Signaling and Fixation of Supramolecular Chirality to Molecular Chirality
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三芳基甲基鎓 o, o-二聚体与天然 γ-环糊精络合中诱导的轴向手性偏好：强 ECD 信号传导以及超分子手性与分子手性的固定
DOI：
10.1039/c2cc17475h
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发表时间：
2011
影响因子：
4.9
通讯作者：
Kenshu Fujiwara
中科院分区：
文献类型：
--
作者：
Takanori Suzuki;Hitomi Tamaoki;Kazuhisa Wada;Ryo Katoono;Tatsuo Nehira;Hidetoshi Kawai;Kenshu Fujiwara
联苯-2，2 ′-二基双[双（4-二甲氨基苯基）甲基]（R）/（S）-1a2+在水溶液中与γ-环糊精1：1络合时，易互变的旋转异构体的比例偏向于R构型。 通过与Na 2S的反应，1a 2 +@γ-CyD对R的轴向手性的偏好可以固定为二氢硫杂环庚三烯2的M-螺旋度。
The ratio of the easily interconverting rotational isomers of biphenyl-2,2′-diylbis[bis(4-dimethylaminophenyl)methylium] (R)/(S)-1a2+ can be biased to prefer an R configuration upon 1 : 1 complexation with γ-cyclodextrin in water. Through the reaction with Na2S, the preference of 1a2+@γ-CyD for an axial chirality of R can be fixed as the M-helicity of dihydrothiepin 2.