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X-ray mapping in heterocyclic design: III. Diffractometric study of the crystal structure of 1-methyl-2-oxo-2,3-dihydroimidazo[1,2-a]pyridinium bromide

โœ Scribed by V. B. Rybakov; S. G. Zhukov; E. V. Babaev; O. S. Mazina; L. A. Aslanov


Book ID
110138495
Publisher
SP MAIK Nauka/Interperiodica
Year
2000
Tongue
English
Weight
42 KB
Volume
45
Category
Article
ISSN
1063-7745

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Structure of 1H-2-oxo-2,3-dihydroimidazo
โœ I. Kowalczyk; E. Bartoszak-Adamska; M. Jaskรณlski; Z. Dega-Szafran; M. Szafran ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 789 KB

2-Aminopyridine betaine (1-carboxymethyl-2-aminopyridinium inner salt) forms crystalline complexes with HCl, HBr and HClO 4 . These complexes on heating in ethanol cyclize to 1H-2-oxo-2,3-dihydroimidazo[1,2-a]pyridinium chloride (1Ax), bromide (2Ax) and perchlorate (3Ax), respectively. Infrared spec