以间苯二酚和乙酰乙酸乙酯为原料,氨基磺酸为催化剂,超声波辐射下合成了7-羟基-4-甲基香豆素,其结构经IR和1 H NMR表征。考察了超声波辐射功率和辐射时间及催化剂用量等因素对反应的影响。结果表明,在80 W辐射反应40min,间苯二酚11g(0.1...以间苯二酚和乙酰乙酸乙酯为原料,氨基磺酸为催化剂,超声波辐射下合成了7-羟基-4-甲基香豆素,其结构经IR和1 H NMR表征。考察了超声波辐射功率和辐射时间及催化剂用量等因素对反应的影响。结果表明,在80 W辐射反应40min,间苯二酚11g(0.1mol),n(间苯二酚)∶n(乙酰乙酸乙酯)∶n(氨基磺酸)=1.0∶1.1∶0.1条件下,7-羟基-4-甲基香豆素的收率到达95%以上。展开更多
A new Schiff base ligand,2-hydroxy-1-naphthylaldchyde guanyl hydrazone(HL) and its copper(Ⅱ) complexes are synthesized in ethanol.Their structures are characterized by elemental analysis,molar conductivity,UV spectra...A new Schiff base ligand,2-hydroxy-1-naphthylaldchyde guanyl hydrazone(HL) and its copper(Ⅱ) complexes are synthesized in ethanol.Their structures are characterized by elemental analysis,molar conductivity,UV spectra,IR spectra,fluorescence spectra and electrochemical property.The results show that the complexes have rings with M-O、M-N and M-NH bonds.展开更多
文摘以间苯二酚和乙酰乙酸乙酯为原料,氨基磺酸为催化剂,超声波辐射下合成了7-羟基-4-甲基香豆素,其结构经IR和1 H NMR表征。考察了超声波辐射功率和辐射时间及催化剂用量等因素对反应的影响。结果表明,在80 W辐射反应40min,间苯二酚11g(0.1mol),n(间苯二酚)∶n(乙酰乙酸乙酯)∶n(氨基磺酸)=1.0∶1.1∶0.1条件下,7-羟基-4-甲基香豆素的收率到达95%以上。
文摘A new Schiff base ligand,2-hydroxy-1-naphthylaldchyde guanyl hydrazone(HL) and its copper(Ⅱ) complexes are synthesized in ethanol.Their structures are characterized by elemental analysis,molar conductivity,UV spectra,IR spectra,fluorescence spectra and electrochemical property.The results show that the complexes have rings with M-O、M-N and M-NH bonds.