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Synthesis of Pyrazoles by 1,3-Dipolar Cycloaddition under Aqueous Micellar Catalysis
European Journal of Organic Chemistry ( IF 2.5 ) Pub Date : 2022-06-20 , DOI: 10.1002/ejoc.202200632
Giorgia Vinciarelli 1 , Giuseppe Barreca 2 , Marianna Coppola 2 , Silvano Ronzoni 2 , Maurizio Taddei 3
Affiliation  

In TPGS-750-M/water, ethyl diazoacetate can be generated in situ and used for a telescopic process to produce pyrazoles. Regioselectivity is controlled either in the micellar environment or in water by pH alone. The metal-free reaction takes place in water with 1.5 % surfactant as the only additive and the purification of the pyrazoles can be done by crystallisation if possible.

中文翻译:

水胶束催化下1,3-偶极环加成法合成吡唑

在 TPGS-750-M/water 中,重氮乙酸乙酯可以原位生成并用于生产吡唑的伸缩工艺。区域选择性在胶束环境或水中仅通过 pH 值来控制。不含金属的反应在水中发生,只有 1.5% 的表面活性剂作为唯一的添加剂,如果可能的话,吡唑的纯化可以通过结晶来完成。
更新日期:2022-06-20
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