科研之友
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摘要
We report herein a facile, rapid, and environmentally friendly synthesis of nitropyrazoles in good yields using silica-bismuth nitrate and silica-sulfuric acid-bismuth nitrate at room temperature for the first time. The relatively non-toxic nature, ease of handling, easy availability, and low cost make the present procedure attractive for the nitration of a wide variety of diazoles in the drug and pharmaceutical industries.
- 出版日期2013-11
