Dmitry, Yurievich, Vandyshev
2015
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Abstract
Interaction of 1, 2-diaminoimidazole with ethoxymethylene-containing derivatives has been studied. It is determined that the interaction malondinitrile, cyanoacetic ester, acetylacetone leads to linearly linked products: 2-(((2-amino-4-phenyl-1Н-imidazole-1-yl)amino) methylene) propanedinitrile, ethyl ester 2-((2-emino-4-phenyl-1Н-imidazole-1-yl)amino)-2-cyano-2-propanoic acid and 2-(((2-amino-4-phenyl-1Н-imodazole-1-yl)amino) methylene)-2,4-pentanedoine. An exception is the reaction of ethoxymethylene ester, in the result of which 7-amino-2-methyl-5-phenyl-imidazol (1, 5-b) pyridine-3-carboxylic acid ethyl ester is regioselectively formed. The products are obtained regardless of reaction condition. The structures of resulting compound are confirmed by NMR 1 H and mass spectroscopy. Further cyclization of linear intermediates with acetic acid, triethylamine, dimethylformamide and dioxane has led to asphaltization that implies difficulties of further individualize derived substances.