Intramolecular Photocycloaddition of Noncyclic Polyether Compounds Containing α,ω-Dicinnamates End Groups and Uptake of Alkali Metal Thiocyanates with Them

Noncyclic polyethers containing two cinnamoyl end groups have been prepared, they were cyclized by photosensitized intramolecular addition. The uptake of alkali metal (sodium and potassium) thiocyanates with these compounds and their ability to extract has been investigated before and after the cyclization.