Enantiopure Anthrylene−Ethynylene Cyclic Tetramer and Racemization via Rotation of Anthracene Unit about Acetylenic Axes<sup>1</sup>
作者:Takeharu Ishikawa、Toshiaki Shimasaki、Haruo Akashi、Shinji Toyota
DOI:10.1021/ol702783v
日期:2008.2.1
Four anthracene and four acetylene units are used to construct a chiral pi-conjugate macrocycle, the chirality of which is due to the restricted rotation about acetylenic axes. Enantiomers were readily resolved by chiral HPLC and racemized slowly even at 70 degrees C.