Tetrahedron

13C NMR study of the structures of some acyclic and cyclic ketene acetals

E Taskinen, ML Pentikäinen

文献索引：Taskinen,E.; Pentikainen,M.L. Tetrahedron, 1978 , vol. 34, p. 2365 - 2370

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被引用次数: 36

摘要

A 13C NMR study of the spatial structures of some acyclic and cyclic ketene acetals (for example, ketene dimethyl acetal and 2-methylene-1, 3-dioxolane) has been carried out. The conclusions obtained are based on observation of the effect of structural changes on the 13C NMR chemical shift of the β carbon on the ketene moity. Since the extent of p-π conjugation and hence the 13C chemical shift of this carbon depend on the spatial ...