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Research Article

ECB. 2019; 8(4): 110-114


Vasiliy Georgievich Shtamburg, Victor Vasilievich Shtamburg, Andrey Alexandrovich Anishchenko, Alexander Vladimirovich Mazepa, Svetlana Valentinovna Shishkina, Irina Sergeevna Konovalova.


4-Nitrophenylglyoxal reacts with N-hydroxyurea both in water and in acetic acid forming the mixture of diastereomers of 3,4,5-trihydroxy- 5-(4-nitrophenyl)imidazolidin-2-one. The diastereomer with cis-orientation of OH-groups dominates. In the acetic acid medium, 4- nitrophenylglyoxal reacts with 2-methylfuran selectively yielding 2-hydroxy-2-(5-methylfuran-2-yl)-1-(4-nitrophenyl)ethanone.

Key words: nitrophenylglyoxal;N-hydroxyurea; 2-methylfuran; 5-aryl-3,4,5-trihydroxyimidazolidin-2-ones; structure; α-benzoins.

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