Synthesis of methyl piperazinyl-quinolinyl α-aminophosphonates derivatives under microwave irradiation with Pd–SrTiO<sub>3</sub> catalyst and their antibacterial and antioxidant activities
作者:Nikisha Rajkoomar、Arul Murugesan、Samikannu Prabu、Robert M. Gengan
DOI:10.1080/10426507.2020.1799366
日期:2020.12.1
were synthesized by a one-pot reaction under microwave conditions, in the presence of a new Pd-SrTiO3 catalyst. 4a–4t were prepared from the substrates methyl piperazinyl-quinolinyl carbaldehyde, selected aniline derivatives and diethyl phosphite. MPQ-APs were characterized by FT-IR, 1H-NMR, 13C-NMR, 2D-NMR, 31P-NMR and high-resolution mass spectroscopy. The catalyst was prepared by a sequential reaction
摘要 在新型 Pd-SrTiO3 催化剂存在下,在微波条件下,通过一锅法反应合成了新型甲基哌嗪基-喹啉基 α-氨基膦酸酯(MPQ-APs)(4a-4t)。4a-4t 由底物甲基哌嗪基-喹啉基甲醛、选定的苯胺衍生物和亚磷酸二乙酯制备。MPQ-APs 的特点是 FT-IR、1H-NMR、13C-NMR、2D-NMR、31P-NMR 和高分辨率质谱。该催化剂是通过硝酸 Sr (II)、柠檬酸和丁醇钛 (IV) 的顺序反应制备的,然后在硝酸钯 (II) 存在下回流。通过FT-IR、P-XRD、SEM、BET、SEM-EDX和拉曼光谱技术对Pd-SrTiO3进行了表征。体外筛选 MPQ-AP 对四种细菌菌株和三种酵母培养物的抗菌活性。化合物 4m 和 4r 对环丙沙星的抗菌活性显示出良好的阳性结果,化合物 4m、4r 和 4f 对抗氧化活性显示出阳性结果。图形概要