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
One-Pot Syntheses with 2-Substituted 6-Aminopyrimidin-4(3H)-ones: New 5-Aryl-5,8,9,10-tetrahydropyrimido[4,5-b]-quinoline-4,6(3H,7H)-diones and 5,5′-(Arylmethylene)-bis[6-amino-2-methylpyrimidin-4(3H)-ones]
作者:A. A. Harutyunyan、S. G. Israyelyan、H. A. Panosyan、M. R. Hakobyan、T. R. Hovsepyan
DOI:10.1134/s1070428019120145
日期:2019.12
One-pot condensation of 2-substituted 6-aminopyrimidin-4(3H)-ones with aromatic aldehydes and 5,5-dimethylcyclohexane-1,3-dione (dimedone) in acetic acid without a catalyst afforded new substituted 5-aryl-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,7H)-diones in good yields. The condensation of 2-memyl-6-aminopyrirnidin-4(3H)-one with aromatic aldehydes at a molar ratio of 2:1 under similar conditions led to the exclusive formation of uncyclized 5,5'-(arylmemylene)bis[6-amino-2-methylpyrimidin-4(3H)-ones].