3,7-Dioxa-1-azabicyclo[3.3.0]octanes Substituted at the C-5 Position− From Local to Global Stereochemistry
作者:Mircea Darabantu、Carmen Maiereanu、Ioan Silaghi-Dumitrescu、Loïc Toupet、Eric Condamine、Yvan Ramondenc、Camelia Berghian、Gérard Plé、Nelly Plé
DOI:10.1002/ejoc.200300584
日期:2004.6
Multiple approaches are described for the elucidation of the stereochemistry in solution (high-resolution NMR spectroscopy) and in the solid state (X-ray diffractometry) that are based on ab initio calculations (level RHF/6-31G*) of some representative 3,7-dioxa-1-azabicyclo[3.3.0]octanes. The results are presented in terms of conformational analysis, anomeric effects, chelating properties and aggregation
描述了多种方法来阐明溶液(高分辨率 NMR 光谱)和固态(X 射线衍射)中的立体化学,这些方法基于一些代表性 3 的从头计算(RHF/6-31G* 级) ,7-dioxa-1-azabicyclo[3.3.0]辛烷。结果以构象分析、异头效应、螯合特性和聚集现象的形式呈现。讨论了这些发现在非对映选择性合成方面的重要性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)