Synthesis and Structural Characterization of some 3-oxapentane Podand Derivatives

A series of eight 3-oxapentane podand derivatives was successfully prepared based on the croton condensation reaction from 1,5-bis(aryl)-1,5-dithia-3-dioxadecane and 1,5-bis(aryl)-1,3,5-trioxadecane with bezaldehyde or acetophenone in acidic condition. These synthesized have structure acyclic crown rings inserted by polyether polythiaether chain vinyl ketone conjugated aryl group. Therefore, they are important sources for host-guest chemistry. They can wrap around a central alkali metal cations as well organic anions even molecules to make interesting ion pair receptors. Structure new podands determined spectral analyses including IR, 1H NMR, MS spectrocopies.