Abstract
Pyridin‐2‐yl‐ and 4,6‐dimethylpyrimidin‐2‐yl‐cyanamides entered into an alkylation reaction in the form of sodium salts. Pyridin‐2‐yl cyanamide 2 was alkylated at endo‐nitrogen atom of pyridine ring, while 4,6‐dimethylpyrimidin‐2‐yl cyanamide 1 was effectively alkylated at exo‐nitrogen atom of amino cyanamide group. The alkylation of cyanamides 1 and 2 with phenacylbromide gave the corresponding acetophenone derivatives. As a result of their intramolecular cyclization reactions 3‐(4,6‐dimethylpyrimidin‐2‐yl)‐5‐phenyloxazol‐2(3H)‐imine in the case of cyanamide 1 and 2‐amino‐3‐benzoylimidazo[1,2‐a]pyridine in the case of cyanamide 2 were formed. The alkylated derivatives of pyridin‐2‐ylcyanamide 2 possess visible blue fluorescence with the main peak at 421 – 427 nm.
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