Synthesis of polysubstituted 4-aminopyrazoles and 4-hydroxypyrazoles from vinyl azides and hydrazines

Synthesis of polysubstituted 4-aminopyrazoles and 4-hydroxypyrazoles from vinyl azides and hydrazines
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由乙烯基叠氮化物和肼合成多取代的4-氨基吡唑和4-羟基吡唑

DOI:
10.1039/c5ra04371a
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发表时间:
2015-04
期刊:
影响因子:
3.9
通讯作者:
Yongping Yu
Yongping Yu
中科院分区:
化学3区
文献类型:
--
作者:
Shen Liu;Binhui Chen;Xiao Guo;Yongping Yu

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以乙烯基叠氮化合物和肼为原料,合成了多取代4-氨基吡唑和4-羟基吡唑。本反应在温和的条件下进行,产率中等至优异。还提出了一种可能的机制。
A simple and direct synthesis of polysubstituted 4-aminopyrazoles and 4-hydroxypyrazoles from vinyl azides and hydrazines was developed. The present reactions were performed under mild conditions in moderate to excellent yields. A possible mechanism is also proposed.
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