Under the conditions of microwave irradiation,6-indole hydrazide were obtained by hydrazinolysising 6-methyl formate indole,which then react with different aromatic aldehydes to gain corresponding hydrazones 3a^3d.Int...Under the conditions of microwave irradiation,6-indole hydrazide were obtained by hydrazinolysising 6-methyl formate indole,which then react with different aromatic aldehydes to gain corresponding hydrazones 3a^3d.Intermediates 3a^3d were treated with anhydride to afford four new 3-acetyl-2-aryl-5-(6-indole)-1,3,4-oxadiazolines by using microwave.The structures of all new compounds were characterized by 1H NMR,IR,MS spectra and elemental analysis.展开更多
以3,4-二羟基-2,5-呋喃二甲酸或其二甲酯为原料,与手性氨基醇直接缩合,经一步反应合成了3个3,4-二羟基-2,5-双-[2′-(4-′-取代(口恶)唑啉)]呋喃化合物,产率为90%～94%,其结构经1 H NMR谱、IR谱、MS谱和元素分析测试技术得到确证;并应...以3,4-二羟基-2,5-呋喃二甲酸或其二甲酯为原料,与手性氨基醇直接缩合,经一步反应合成了3个3,4-二羟基-2,5-双-[2′-(4-′-取代(口恶)唑啉)]呋喃化合物,产率为90%～94%,其结构经1 H NMR谱、IR谱、MS谱和元素分析测试技术得到确证;并应用这些手性双(口恶)唑啉配体,初步探讨了β-萘乙酮在KBH4或NaBH4作用下的不对称还原反应. 结果表明,以环己烷作溶剂,采用n(配体): n(还原剂): n(β-萘乙酮)=0.04:1.6:1在0 ℃下反应72 h,产物的ee值高达83.2%,且(口恶)唑啉环上4位取代基为苄基的呋喃类双(口恶)唑啉,其对映选择性优于取代基为乙基的同类配体.展开更多
A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its plati...A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its platinum complex were investigated. A characteristic metal-ligand charge transfer absorption peak at 439 nm in the UV spectrum and a strong emission peak at 625 nm in the photoluminescence spectrum were observed for this complex in dichloromethane. Cyclic voltammtry (CV) analysis shows that the EHOMO (energy level of the highest occupied molecular orbital) and ELUMO (energy level of the lowest unoccupied molecular orbital) of the platinum complex are about 、5.69 and 、3.25 eV, respectively, indicating that the oxadiazole-based platinum complex has a potential application in electrophosphorescent devices used as a red-emitting material.展开更多
文摘Under the conditions of microwave irradiation,6-indole hydrazide were obtained by hydrazinolysising 6-methyl formate indole,which then react with different aromatic aldehydes to gain corresponding hydrazones 3a^3d.Intermediates 3a^3d were treated with anhydride to afford four new 3-acetyl-2-aryl-5-(6-indole)-1,3,4-oxadiazolines by using microwave.The structures of all new compounds were characterized by 1H NMR,IR,MS spectra and elemental analysis.
基金Project(50473046) supported by the National Natural Science Foundation of ChinaProject(204097) supported by the Science Foundation of the Ministry of Education of China+1 种基金Project(04JJ1002) supported by the Outstanding Youth Foundation of Hunan Province,ChinaProject(06JJ2008) supported by the Natural Science Foundation of Hunan Province,China
文摘A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its platinum complex were investigated. A characteristic metal-ligand charge transfer absorption peak at 439 nm in the UV spectrum and a strong emission peak at 625 nm in the photoluminescence spectrum were observed for this complex in dichloromethane. Cyclic voltammtry (CV) analysis shows that the EHOMO (energy level of the highest occupied molecular orbital) and ELUMO (energy level of the lowest unoccupied molecular orbital) of the platinum complex are about 、5.69 and 、3.25 eV, respectively, indicating that the oxadiazole-based platinum complex has a potential application in electrophosphorescent devices used as a red-emitting material.
