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SYNTHESIS AND STRUCTURE OF 3,4,5-TRIHYDROXY-5-(4- NITROPHENYL)IMIDAZOLIDIN-2-ONE

SYNTHESIS AND STRUCTURE OF 3,4,5-TRIHYDROXY-5-(4- NITROPHENYL)IMIDAZOLIDIN-2-ONE

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

4-Nitrophenylglyoxal reacts with N-hydroxyurea both in water and in acetic acid forming the mixture of diastereomers of 3,4,5-trihydroxy5-(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.

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

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