作者:Dorina Opris、Ion Grosu、Loïc Toupet、Gérard Plé、Anamaria Terec、Sorin Mager、Luminita Muntean
DOI:10.1039/b104604g
日期:——
The synthesis and the stereochemistry of new tetraspiro-1,3-dioxanes are reported. The configuration of isomers is discussed considering the helical chirality of spiranes with six-membered rings. The X-ray structures of three compounds exhibiting different configurations and conformations of the polyspiro skeleton are described. The flexible or anancomeric behaviour of the rings of the spiro skeleton is investigated by conformational analysis and dynamic NMR.
报告了新的四螺-1,3-二氧杂环的合成和立体化学。考虑到具有六元环的螺烷的螺旋手性,对异构体的构型进行了讨论。介绍了三种化合物的 X 射线结构,这些化合物展示了多螺骨架的不同构型和构象。通过构象分析和动态核磁共振研究了螺环骨架环的柔性或异构行为。