Liao Gui-Hong, Luo Lin, Xu Hong-Xia, Wu Xiao-Ling, Lei Lei, Tung Chen-Ho, Wu Li-Zhu
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, the Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
J Org Chem. 2008 Sep 19;73(18):7345-8. doi: 10.1021/jo800927t. Epub 2008 Aug 12.
Irradiation of 2-naphthalenecarbonitrile (2-NpCN) in solution with a light lambda > 280 nm results in the formation of three rigid cubane-like photodimers, anti-head-to-head 1, anti-head-to-tail 2, and syn-head-to-tail 3, which are not in line with the previously recognized regioselectivity. These cubane-like photodimers have been well characterized by spectroscopic investigation and/or X-ray crystal structural analysis in this work. Moreover, the separation of the optically pure enantiomers of 1, 2, and 3 has been achieved by HPLC resolution.
在波长大于280 nm的光照射下，2-萘甲腈（2-NpCN）在溶液中会形成三种刚性的类立方烷光二聚体，反式头对头1、反式头对尾2和顺式头对尾3，这与先前公认的区域选择性不符。在这项工作中，这些类立方烷光二聚体已通过光谱研究和/或X射线晶体结构分析得到了很好的表征。此外，通过高效液相色谱拆分实现了1、2和3的光学纯对映体的分离。
