Oxorhenium(V)-mediated syntheses and structures of oxypyridinium-ammonium zwitterions

Authors: ABUBAK'R ABRAHAMS, THOMAS GERBER, ERIC HOSTEN, PETER MAYER

Abstract: Treatment of N,N-bis(2-hydroxybenzyl)-2-(2-aminoethyl) dimethylamine (H_2had) with trans-[ReO_2(py)_4]I in acetone affords the iodide salts of the oxypyridinium-ammonium zwitterions N^1-(2-hydroxybenzyl)-N^2,N^2-dimethyl-N^1-((2-oxypyridinium)-1- methyl)ethane-1,2-diamine [Hhpd]^+ and N^2,N^2-dimethyl-N^1- bis((2-oxypyridinium)-1- methyl)ethane-1,2-diamine [dod]^+. The products were characterized by X-ray structure analysis, and NMR and IR spectroscopy.

Keywords: Oxorhenium(V), oxypyridinium-ammonium, zwitterions.

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