Synthesis, Reactions and Antibacterial Activity of 3-Acetyl[1,2,4]triazolo[3,4-a]isoquinoline Derivatives using Chitosan as Heterogeneous Catalyst under Microwave Irradiation
作者:Hamdi M. Hassaneen、Huwaida M. E. Hassaneen、Yasmin Sh. Mohammed、Richard M. Pagni
DOI:10.1515/znb-2011-0313
日期:2011.3.1
3-Acetyl[1,2,4]triazolo[3,4-a]isoquinolines were prepared using chitosan as a catalyst. These compounds were used to prepare a novel series of enaminones 5, and their reactions with hydrazonoyl halides 1 and 11 gave triazoloisoquinolines 8 and 13, respectively, with a carbonylpyrazole side chain. Hydrazinolysis of 8 and 13 gave the pyrazolopyridazines 10 and pyrazolopyridazinones 14. Reaction of 5
3-乙酰基[1,2,4]三唑并[3,4-a]异喹啉以壳聚糖为催化剂制备。这些化合物被用来制备一系列新的烯胺酮 5,它们与腙酰卤化物 1 和 11 的反应分别得到具有羰基吡唑侧链的三唑异喹啉 8 和 13。8和13的肼解得到吡唑并哒嗪10和吡唑并哒嗪酮14。5与羟甲基卤化物15的反应产生具有羰基异恶唑侧链的三唑并异喹啉16。研究了化合物8和10的抗菌作用。微波辐照下以壳聚糖为多相催化剂的 3-乙酰基[1,2,4]三唑并[3,4-a]异喹啉衍生物的图形摘要合成、反应和抗菌活性