2016-08-242016-08-241991-07-02http://hdl.handle.net/10919/72507Bis(carboalkoxy-substituted phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed by first reacting a functionalized dihydroxy aromatic compound with a hydroxy protecting group-substituted halopolyether, deprotecting the resulting product to form the diol, forming the corresponding tosylate, and reacting the tosylate with the same or analogous diol in a cyclization reaction to form the crown ether compound.application/pdfen-USPatenthttp://pimg-fpiw.uspto.gov/fdd/21/287/050/0.pdf7418362549/352549/349549/351C07D323/00Y02P20/555028721