Relative and Absolute Structure Assignments of Alkenes Using Crystalline Osmate Derivatives for X-ray Analysis
作者:Alexander S. Burns、Charles Dooley、Paul R. Carlson、Joseph W. Ziller、Scott D. Rychnovsky
DOI:10.1021/acs.orglett.9b04133
日期:2019.12.20
stable crystalline adducts with alkenes. The structure of liquid alkenes can be determined through the X-ray analysis of these derivatives. Osmium, a heavy atom, facilitates the crystallographic analysis and the determination of the absolute configuration using common Mo X-ray sources. The utility of this method for assigning structures and absolute configurations was demonstrated on a number of unsaturated
四氧化和TMEDA与烯烃形成稳定的结晶加合物。液态烯烃的结构可以通过对这些衍生物的X射线分析来确定。common是重原子,可使用常见的Mo X射线源促进晶体学分析和确定绝对构型。在许多不饱和底物上证明了该方法用于分配结构和绝对构型的效用,这些不饱和底物包括简单的烯烃,烯酮,烯醇醚和甲硅烷基烯醇醚。