BF<sub>3</sub>-grafted Fe<sub>3</sub>O<sub>4</sub>@Sucrose nanoparticles as a highly-efficient acid catalyst for syntheses of Dihydroquinazolinones (DHQZs) and Bis 3-Indolyl Methanes (BIMs)
core and grafting of boron trifluoride (BF3) onto the new surface. The catalytic activity of these nanoparticles was tested in syntheses of Dihydroquinazolinones (DHQZs) and Bis (3‐Indolyl) Methanes (BIMs) as two fruitful pharmaceutical structures. Acidic capacity, FT‐IR, XRD, VSM, TGA and SEM–EDX tests are carried out on such novel nanoparticles (NPs). Catalyst has shown more acidic capacity per one
当前的论文表示将蔗糖固定在Fe 3 O 4核上并将三氟化硼(BF 3)接枝到新表面上。在二氢喹唑啉酮(DHQZs)和双(3-吲哚基)甲烷(BIM)的合成中,作为两种卓有成效的药物结构,测试了这些纳米颗粒的催化活性。对这种新型纳米颗粒(NP)进行了酸性容量,FT-IR,XRD,VSM,TGA和SEM-EDX测试。与以前报道的磺化同系物相比,催化剂每1克NP的酸容量更高。
Potassium <i>tert</i>-Butoxide Promoted Synthesis of Dihydroquinazolinones
protocol to access heterocyclic dihydroquinazolinones by a transition-metal-free process, involving the reaction of 2-aminobenzonitriles with aldehydes in the presence of KOtBu. The method is compatible with aromatic ketones providing 2,2-disubstituted dihydroquinazolinones in high yields. This reaction proceeds feasibly at room temperature and features a broad substrate scope and tolerance to a range
我们在此报告了一种通过无过渡金属工艺获得杂环二氢喹唑啉酮的有效合成方案,包括在 KO t Bu存在下 2-氨基苯甲腈与醛的反应。该方法与芳族酮兼容,以高产率提供 2,2-二取代二氢喹唑啉酮。该反应在室温下可行,具有广泛的底物范围和对一系列官能团的耐受性。该机制遵循激进的途径。