A new application of natural asphalt (mineral bitumen) in chemistry as a novel class of carbonaceous compound: Synthesis and characterization of NA-SO3H@Oxalic Acid@ CuI as a heterogeneous and reusable catalyst for the synthesis of symmetric diaryl guanidine
作者:Sedigheh Moradnejati、Mohammad Soleiman-Beigi、Ensieh Ghasemian Lemraski
DOI:10.1016/j.molstruc.2024.137596
日期:2024.5
CN bond formations via cross-coupling reactions of guanidine nitrate with aryl halides was investigated. The shape and size of the heterogeneous NA-SO3H@Oxalic Acid-Cu were characterized by SEM, FT-IR, BET,EDX and TGA techniques. In addition, the ability of NA-SO3H@oxalic acid@CuI to catalyze cross-coupling reactions was compared to MOF-199. NA-SO3H@oxalic acid@Cu, as well as MOF-199, catalyzed coupling
天然沥青的分子结构中含有超过 70% 的碳,是生产大量不同碳质化合物的最新和最有前途的来源之一。在本文中,我们报告了通过在天然沥青磺酸中涂覆草酸从固体天然沥青合成新网络的系统研究。然后,在NA@oxalic酸网络上掺杂 CuI,并研究这种能力作为一种有效的、新的、热稳定的、空气稳定的、非均相的和可重复使用的催化剂,通过硝酸胍与芳基卤化物的交叉偶联反应形成 CN 键。通过 SEM、FT-IR、BET、EDX 和 TGA 技术对非均相 NA-SO3H@Oxalic Acid-Cu 的形状和尺寸进行了表征。此外,将 NA-SO3H@oxalic acid@CuI 催化交叉偶联反应的能力与 MOF-199 进行了比较。NA-SO3H@oxalic acid@Cu 以及 MOF-199 在短反应时间、高产率和温和条件下催化了胍和芳基卤化物的偶联反应。