多接头亚磷酸锚定的En / MIL-100(Cr)作为新型N-杂环嘧啶并[4,5- b ]喹啉的新型纳米孔催化剂
摘要:
制备了一种新的基于亚乙基二胺(En)的Cr-MOFs金属/有机骨架化合物(En / MIL-100(Cr)),其中含有亚磷酸标签。MIL-100(Cr)/ NHEtN(CH 2 PO 3 H 2)2具有多种技术特征,包括傅立叶变换红外光谱(FT-IR),扫描电子显微镜(SEM),元素映射和能量色散X射线(EDS),透射电子显微镜(TEM),热重(TG),差热重(DTG),N 2吸附-解吸等温线(BET)和元素分析。MIL-100(铬)/ NHEtN(CH 2 PO 3 H 2)2成功地用于合成新的N类杂环化合物,例如四氢嘧啶[4,5- b ]喹啉-2,4,6(1 H,3 H,7 H)-三酮,四氢嘧啶[4,5- b ]喹啉-4,6(3 H,7 H)-二酮和八氢嘧啶基[4,5 - b ]喹啉-6(1 H)-一衍生物。更具体地说,本文研究了基于尿嘧啶(X = S,O)的新的四氢嘧啶基[4,5- b
An efficient synthesis of pyrimido[4,5-<i>b</i>]quinoline derivatives<i>via</i>three-component reaction in aqueous media
作者:Da-Qing Shi、Li-Hui Niu、Hao Yao、Hong Jiang
DOI:10.1002/jhet.57
日期:2009.3
A series of pyrimido[4,5-b]quinoline derivatives was synthesized by three-component reaction of 6-aminopyrimidine, aromatic aldehydes and 1,3-cyclohexanedione or 5,5-dimethyl-1,3-cyclohexanedione in aqueousmedia in the presence of triethylbenzylammonium chloride. This protocol has the advantages of higher yields, lower lost, easy work-up, and environmentally friendly procedure. J. Heterocyclic Chem