Crown ethers with an azo or azoxy unit and sulfur atom(s) in a 13- membered macrocycle

Article abstract of DOI:10.1016/S0040-4020(99)00430-5

13-Membered crown ethers bearing oxygen and sulfur atom(s) and an azo- or azoxy group in the macrocycle have been synthesized by reductive macrocyclization of dinitropodands. The structure of a 13-membered azoxydithiacrown ether has been studied by X-ray