Synthesis of alkyl 5-aryl-7-methyl-1,5-dihydrotetrazolo-[1,5-a]pyrimidine-6-carboxylates
作者:V. L. Gein、I. N. Vladimirov、O. V. Fedorova、A. A. Kurbatova、N. V. Nosova、I. V. Krylova、M. I. Vakhrin
DOI:10.1134/s1070428010050180
日期:2010.5
Alkyl 5-aryl-7-methyl-1,5-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylates were obtained by melting acetoacetic acid esters with 5-aminotetrazole and aromatic aldehyde.
Rapidly, highly yielded and green synthesis of dihydrotetrazolo[1,5‐
<i>a</i>
]pyrimidine derivatives in aqueous media using recoverable Pd (II) thiazole catalyst accelerated by ultrasonic: Computational studies
作者:Mahmoud Abd El Aleem Ali Ali El‐Remaily、Ahmed M. M. Soliman、Mohamed E. Khalifa、Nashwa M. El‐Metwaly、Amerah Alsoliemy、Tarek El‐Dabea、Ahmed M. Abu‐Dief
DOI:10.1002/aoc.6320
日期:2022.2
thiazole complexes from Cu (II), Fe (III), and Pd (II) ions. Such complexes were characterized to present their chemical formulae, firstly. The octahedral geometry was suggested for the investigated complexes except Pd (II) complex (ARPTPd), which has a square-planer arrangement. ARPTPd was planned to be used as a catalyst for synthesis of dihydrotetrazolo[1,5-a]pyrimidine derivatives at mild conditions. The
在这里,我们从 Cu (II)、Fe (III) 和 Pd (II) 离子合成了新的噻唑配合物。这种配合物的特征首先在于呈现它们的化学式。除了具有正方形平面排列的 Pd (II) 配合物 (ARPTPd) 之外,研究的配合物建议采用八面体几何形状。ARPTPd 计划用作在温和条件下合成二氢四唑并[1,5- a ]嘧啶衍生物的催化剂。对四组分反应方法中 ARPTPd 配合物的催化活性进行了刻意监测,直到达到最有利的条件。建议催化剂的优点基本概括为使用绿色溶剂(H 2O)、反应时间短、产品收率高。此外,ARPTPd 配合物和超声波辐照对合成二氢四唑[1,5- a]嘧啶衍生物与其他路易斯酸、碱性和离子液体催化剂相比较。此外,转化的温和性和与不同官能团的相容性使其具有吸引力。此外,在奉献中,计算方面通常根据其对可变功能特征的声明或区分的影响来考虑。配合物的晶体堆积系统被配置为提取重要的表面特性