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Communication | Special issue | Vol 15, No. 2, 1981, pp.739-742
Published online, 1st January, 1970
DOI: 10.3987/S-1981-02-0739
Dipyridine Crown Ethers.Synthesis and Conformational Aspects of a Tetraazadithia-18-crown-6 Analog

George R.Newkome* and Dalip K.Kohli

*Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, U.S.A.


The synthesis and conformational analysis by VTNMR of a bis-dipyridylthia-18-crown-6-ether (4) are described. The energy barrier of inversion ΔG is 10.4 kcal/mol and measures a transverse isomerization inversion process.