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Communication | Regular issue | Vol 16, No. 1, 1981, pp.9-16
Published online, 1st January, 1970
DOI: 10.3987/R-1981-01-0009
Methylation of Pyridazines. The Crystal and Molecular Structure of 4,5-Diamino-1-methyl-3-methylthiopyridazinium Iodide

Bradford J. Graves, Derek J. Hodgson,* Sinh-Fong Chen, and Raymond P. Panzica

*Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, Chapel Hill, NC 27599-3290

Abstract

The crystal and molecular structure of 4,5-diamino-1-methyl-3-methylthiopyridazinium iodide (3) has been determined. This X-ray crystallographic study corroborates the suggested course of methylation of substituted pyridazines and established the direction of ring closure of mucochloric acid with methylhydrazine.