An Efficient synthesis of pyrimido[4,5-<i>b</i>]quinoline and indeno[2′,1′:5,6]pyrido[2,3-<i>d</i>]pyrimidine derivatives via multicomponent reactions in ionic liquid
作者:Shun-Jun Ji、Sai-Nan Ni、Fang Yang、Jing-Wen Shi、Guo-Lan Dou、Xiao-Yue Li、Xiang-Shan Wang、Da-Qing Shi
DOI:10.1002/jhet.5570450310
日期:2008.5
A series of pyrimido[4,5-b]quinoline and indeno[2′,1′:5,6]pyrido[2,3-d]pyrimidine derivatives were synthesized via the three-component reaction of an aldehyde, 6-aminopyrimidine-2,4-dione and 5,5-dimethyl-1,3-cyclohexanedione or 1,3-indanedione in ionic liquid 1-n-butyl-3-methylimidazolium bromide ([bmim]Br). This protocol has the advantages of easier work-up, milder reaction conditions, high yields
通过醛6-氨基嘧啶的三组分反应合成了一系列嘧啶并[4,5- b ]喹啉和茚并[2',1':5,6]吡啶[2,3- d ]嘧啶衍生物离子液体1 - n-丁基-3-甲基咪唑鎓溴化物([bmim] Br)中的-2,4-二酮和5,5-二甲基-1,3-环己二酮或1,3-茚满二酮。与其他方法相比,该方案的优点是后处理容易,反应条件温和,收率高且对环境无害。
A green multicomponent synthesis of bioactive pyrimido[4,5-b]quinoline derivatives as antibacterial agents in water catalyzed by RuCl3·xH2O
Abstract An efficient, convenient and environmentally benign one-pot multicomponent reaction for the preparation of pyrimido[4,5-b]quinolinederivatives as biologically, pharmacologically and antibacterially active products has been developed using RuCl 3 · x H 2 O as a reusable homogenous catalyst. Use of water as a green solvent, purification of products by non-chromatographic methods, reusability
摘要以RuCl 3·x H 2 O为可重复使用的均相溶液,开发了一种高效,便捷且对环境无害的单锅多组分反应法,用于制备嘧啶并[4,5-b]喹啉衍生物的生物学,药理和抗菌活性。催化剂。使用水作为绿色溶剂,通过非色谱法纯化产物,过渡金属均相催化剂的可重复使用性,通过采用多组分反应节省能源,反应时间短且产率高,是该方法的一些优点。
A highly efficient and green approach for the synthesis of pyrimido[4,5-<i>b</i>]quinolines using <i>N,N</i>-diethyl-<i>N</i>-sulfoethanaminium chloride
作者:Abdolkarim Zare、Manije Dianat
DOI:10.1515/znb-2020-0098
日期:2021.2.23
A highly efficient and green protocol for the synthesis of pyrimido[4,5- b ]quinolines has been described. The one-pot multicomponent reaction of dimedone with arylaldehydes and 6-amino-1,3-dimethyluracil in the presence of N,N- diethyl- N -sulfoethanaminium chloride ([Et 3 N–SO 3 H][Cl]) as an ionic liquid (IL) catalyst under solvent-free conditions afforded the mentioned compounds in high yields
Dicationic ionic liquid grafted with silica-coated nano-Fe3O4 as a novel and efficient catalyst for the preparation of uracil-containing heterocycles
作者:Abdolkarim Zare、Marziyeh Barzegar
DOI:10.1007/s11164-020-04171-2
日期:2020.7
it was utilized as an efficient, magnetically recyclable and dual-functional catalyst for the preparation of an important class of uracil-containing heterocycles, namely pyrimido[4,5-b]quinolines. The one-pot multicomponent reaction of dimedone, arylaldehydes and 6-amino-1,3-dimethyluracil in the presence of NFSBDI under solvent-free conditions afforded pyrimido[4,5-b]quinolines in high yields and short
摘要 合成了一种新型的纳米磁性材料,接枝了二氧化硅包覆的纳米Fe 3 O 4(纳米-[Fe 3 O 4 @SiO 2 @BDIL]或NFSBDI)接枝的硫酸氢盐官能化的离子型离子液体,并通过EDS证实了其结构, FE-SEM,FT-IR,VSM,XRD和TGA。此后,它被用作一种高效,可磁回收和双功能的催化剂,用于制备一类重要的含尿嘧啶的杂环,即嘧啶并[4,5- b ]喹啉。在无溶剂条件下,在NFSBDI存在下,二甲酮,芳醛和6-氨基-1,3-二甲基尿嘧啶的一锅多组分反应提供了嘧啶基[4,5- b高产和短时间的]喹啉。 图形概要
A novel organic–inorganic hybrid material: production, characterization and catalytic performance for the reaction of arylaldehydes, dimedone and 6-amino-1,3-dimethyluracil
作者:Abdolkarim Zare、Manije Dianat、Mohammad Mehdi Eskandari
DOI:10.1039/c9nj06393e
日期:——
A novel silica-based organic–inorganic hybrid catalyst was prepared, characterized and applied for the synthesis of pyrimido[4,5-b]quinolines.