Synthesis of indeno-[1,2-<i>b</i>]-quinoline-9,11(6<i>H</i>,10<i>H</i>)-dione and 7,7-dimethyl-10-aryl-7,8-dihydro-5<i>H</i>-indeno[1,2-<i>b</i>]quinoline-9,11(6<i>H</i>,10<i>H</i>)-dione derivatives in presence of heterogeneous Cu/zeolite-Y as a catalyst
作者:Shankar D. Dhengale、Chandrashekhar V. Rode、Govind B. Kolekar、Prashant V. Anbhule
DOI:10.1039/d1ra06637d
日期:——
A simple method for the synthesis of indeno-[1,2-b]-quinoline-9,11-(6H,10H)-dione derivatives and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-diones through the reaction of aromatic aldehydes, indan-1,3-dione, dimedone, and p-toluidine/ammonium acetate in the presence of heterogeneous CuO supported on a zeolite-Y catalyst has been investigated in ethanol under reflux conditions
一种简单合成茚并-[1,2- b ]-喹啉-9,11-(6 H ,10 H )-二酮衍生物和7,7-二甲基-10-芳基-7,8-二氢-的方法5 H -茚并[1,2- b ]喹啉-9,11(6 H ,10 H )-二酮通过芳香醛、茚满-1,3-二酮、双甲酮和对甲苯胺/乙酸铵在在回流条件下,研究了载于Y沸石-Y催化剂上的多相CuO在乙醇中的存在。通过该方法,减少了反应时间,从而获得了优异的产物收率。该催化剂采用水热法、湿法浸渍法制备。该催化剂显示出布朗斯台德酸位点和路易斯酸位点。用过的催化剂可以主动回收,最多五次回收时收率略有下降。通过FT-IR、吡啶FT-IR、XRD、SEM、EDS、XPS、TEM和BET比表面积分析对所制备的催化剂进行了表征。合成的化合物通过FT-IR、1H NMR、13C NMR和GC-MS光谱进行表征。