作者:Yan-Guang Wang、Jian Zhang、Xu-Feng Lin、Han-Feng Ding
DOI:10.1055/s-2003-40863
日期:——
An efficient and rapid parallel liquid-phase synthesis of pyrazolines has been developed. The one-pot three-components reaction of polyethylene glycol (PEG)-supported acrylate 1, aldehyde 2 and aryl hydrazine 3 in the presence of chloramine-T in methanol gave the corresponding PEG-supported pyrazolines 5. Cleavage from the support under mild conditions afforded pyrazolines 6 in good yields (69-91%)
已开发出一种高效且快速的吡唑啉平行液相合成方法。聚乙二醇 (PEG) 负载的丙烯酸酯 1、醛 2 和芳基肼 3 在甲醇中氯胺-T 存在下的一锅三组分反应得到相应的 PEG 负载的吡唑啉 5。在温和条件下从载体上裂解以良好的产率 (69-91%) 和高纯度 (91-100%) 提供吡唑啉 6。