Synthesis and structural study of quinuclidine spiro derivatives

Abstract
The synthesis of quinuclidine‐3‐spiro‐5′‐oxazolidine‐2′,4′‐dione, quinuclidine‐3‐spiro‐5′‐hydantoin, and some 3′‐derivatives is described. Based on the data from 1H and 13C‐nmr spectra the structure of the above mentioned compounds is established. A relationship between second order effects in 13C‐nmr spectra and H‐C‐C‐H dihedral angles is deduced.