Bromination of 1-hydroxyimidazoles. Synthesis and crystal structures

Laus G.; Wurst K.; Kahlenberg V.; Schottenberger H.

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Bromination of 1-hydroxyimidazoles. Synthesis and crystal structures

机译：1-羟基咪唑的溴化。合成与晶体结构

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Bromination of 1-hydroxyimidazole 3-oxide and 1-hydroxy-2-methylimidazole 3-oxide using bromine in acetic acid gave 2-bromo-1,3-dihydroxyimidazole hydrobromide and 4,5-dibromo-1,3-dihydroxy-2-methylimidazole hydrobromide, respectively. In contrast, bromination in aqueous mixture (acetic acid, methanol, dimethylformamide, tetrahydrofuran) yielded 2,4,5-tribromo-1- hydroxyimidazole. Crystal structures of four compounds were determined by X-ray diffraction.

机译：用溴在乙酸中溴化1-羟基咪唑3-氧化物和1-羟基-2-甲基咪唑3-氧化物，得到2-溴-1,3-二羟基咪唑氢溴酸盐和4,5-二溴-1,3-二羟基-2-溴分别是甲基咪唑氢溴酸盐。相反，在水性混合物（乙酸，甲醇，二甲基甲酰胺，四氢呋喃）中溴化可生成2,4,5-三溴-1-羟基咪唑。通过X射线衍射确定四种化合物的晶体结构。

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《Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences》 |2012年第4期|共5页
作者
Laus G.; Wurst K.; Kahlenberg V.; Schottenberger H.;
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正文语种 eng
中图分类化学;
关键词
Bromination; Crystal structure; Imidazole; N-oxide;

机译：溴化;晶体结构;咪唑;N-氧化物;

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Bromination of 1-hydroxyimidazoles. Synthesis and crystal structures

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