A fascinating click strategy to novel 1,2,3-triazolium based organic-inorganic hybrids for highly accelerated preparation of tetrazolopyrimidines
作者:Layla A. Taib、Mosadegh Keshavarz
DOI:10.1016/j.poly.2021.115630
日期:2022.2
reaction of phosphotungstic acid with the obtained zwitterions led to the novel 1,2,3-triazolium-N-butyl sulfonic acid phosphotungstate as acidic ionic solids. The synthesized BAIS catalysts were fully characterized using FTIR, 1H and 13C NMR, XRD, elemental analysis (CHNS), TG and DSC techniques. The introduced novel hybrids were used as efficient catalysts for the synthesis of targeted methyl-7-aryl-4
在此,点击反应用于制备新型有机-无机 Brønsted 酸性离子固体 (BAIS),作为有效合成四唑并嘧啶的新型催化剂。在点击反应条件下合成了一系列单和双取代的1,2,3-三唑。制备的 1,2,3-三唑与 1,4-丁烷磺内酯反应以提供新型固体 1,2,3-三唑鎓 N-丁基磺酸盐两性离子。然后,磷钨酸与所获得的两性离子反应生成新型 1,2,3-三唑鎓-N-丁基磺酸磷钨酸盐,为酸性离子固体。合成的 BAIS 催化剂使用 FTIR、1 H 和13C NMR、XRD、元素分析 (CHNS)、TG 和 DSC 技术。引入的新型杂化物被用作合成目标甲基-7-芳基-4,7-二氢四唑并[1,5 - a ]嘧啶-6-羧酸酯和6,6-二甲基-9-芳基-5的有效催化剂, 6,7,9-四氢四唑并[5,1- b ]quinazolin-8(4H)-one衍生物通过芳香醛、活性亚甲基化合物和5-氨基四唑的多组分反应。少量制备的1