ChemInform Abstract: Synthesis and Stereochemistry of New Tetraspiro-1,3-dioxanes.
Cheminform(2010)
Abstract
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.
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Key words
stereochemistry,synthesis
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