作者:Giuseppe Cocconcelli、Chiara Ghiron、Simon Haydar、Iolanda Micco、Riccardo Zanaletti
DOI:10.1080/00397910903277912
日期:2010.8.5
A new and efficient synthesis for the preparation of novel 4-fluoro-2H-pyrazol-3-ylamines is described. It involves the reaction of an acyl chloride with fluoroacetonitrile and sequential ring closure of the α-fluoro-β-ketonitrile with hydrazine. Utilizing this synthetic protocol, we have synthesized a variety of 4-fluoro-2H-pyrazol-3-ylamines with different steric and electronic demands.
描述了一种用于制备新型 4-氟-2H-吡唑-3-基胺的新型有效合成方法。它涉及酰氯与氟乙腈的反应以及 α-氟-β-酮腈与肼的连续闭环反应。利用该合成方案,我们合成了各种具有不同空间和电子需求的 4-fluoro-2H-pyrazol-3-ylamines。