Prompt Determination of Absolute Configuration for Epoxy Alcohols via Exciton Chirality Protocol
作者:Xiaoyong Li、Babak Borhan
DOI:10.1021/ja805058t
日期:2008.12.3
A microscale protocol for determination of absolute configurations of 2,3-epoxy alcohols is described. 2,3-Disubstituted (cis and trans), 2,2-disubstituted, 2,2,3-trisubstituted, and 2,3,3-trisubstituted epoxy alcohols rendered prominent ECCD signals upon complexing with a Lewis acidic porphyrin tweezer and consequently provide straightforward assignment of chirality for epoxy alcohols. This method
描述了用于确定 2,3-环氧醇绝对配置的微型协议。2,3-二取代(顺式和反式)、2,2-二取代、2,2,3-三取代和 2,3,3-三取代环氧醇在与路易斯酸性卟啉镊子复合后呈现显着的 ECCD 信号,从而提供环氧醇手性的直接分配。事实证明,对于上面列出的分子类别,该方法快速、简单、灵敏且可靠。