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首页> 外文期刊>Chemistry of heterocyclic compounds >Features of the reaction of unsymmetrical 2-mercapto-imidazoles with aromatic and aliphatic ketones
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Features of the reaction of unsymmetrical 2-mercapto-imidazoles with aromatic and aliphatic ketones

机译:不对称2-巯基咪唑与芳香族和脂肪族酮的反应特征

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摘要

The cyclization of unsymmetrical 2-mercaptoimidazoles with aliphatic and aromatic ketones has been studied. Using 1H NMR and X-ray analysis it has been shown that 4-R1-1H-2-mercaptoimidazoles undergo selective oxidative cyclization to the corresponding 3-R3-2-R2-6-R1-imidazo[2,1-b][1,3]thiazoles while 6-R4-1H-2-mercaptobenzo[d]imidazoles give a mixture of 6-R4-3-R2-2-R3-benzo[4,5]imidazo[2,1-b][1,3]thiazole and 7-R4-3-R2-2-R3-benzo[4,5]imidazo[2,1-b][1,3]thiazole in the ratio 1: 1.
机译:研究了不对称的2-巯基咪唑与脂肪族和芳香族酮的环化。使用1 H NMR和X射线分析表明,4-R1-1H-2-巯基咪唑经过选择性氧化环化反应生成相应的3-R3-2-R2-6-R1-咪唑并[2,1-b] [ 1,3]噻唑,而6-R4-1H-2-巯基苯并[d]咪唑生成6-R4-3-R2-2-R3-苯并[4,5]咪唑[2,1-b] [ 1,3]噻唑和7-R4-3-R2-2-R3-苯并[4,5]咪唑并[2,1-b] [1,3]噻唑的比例为1:1。

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