An efficient heterogeneous Cu(I) complex for the catalytic oxidation of alcohols and sulfides: synthesis, characterization, and investigation of the catalyst activity
oxidant molar ratio, catalyst amount, and solvent type) were optimized, using H2O2 as a green oxidant, and excellent conversion amounts (100%) were achieved under optimal conditions. Moreover, the generality and recyclability of the catalyst were tested and confirmed. A comparison between the oxidation results of the alcohol and sulfide in the presence of 1 with other catalysts indicated that in most
摘要 通过 C 5 H 4 NC(O)NHP(O)[NHC(CH 3 ) 3 ] 2 ( L ) 与 CuCl反应合成了非均相 Cu(I) 配合物,并将其用作芳香醇绿色氧化的催化剂和硫化物。根据31 P NMR、UV-Vis、FT-IR、质量、XRD、元素分析和摩尔电导率技术的表征结果,配合物( 1 )的化学式为[CuClL 2 ]。使用 H 2 O 2优化了催化活性参数(反应温度、底物与氧化剂的摩尔比、催化剂用量和溶剂类型)作为绿色氧化剂,在最佳条件下实现了优异的转化率(100%)。此外,还测试并证实了催化剂的通用性和可回收性。醇和硫化物在1存在下与其他催化剂的氧化结果的比较表明,在大多数情况下,1在更合理的反应时间和条件下表现出更好的效率。
New organotin(IV) complexes of nicotinamide, isonicotinamide and some of their novel phosphoric triamide derivatives: Syntheses, spectroscopic study and crystal structures
iso with formula SnCl2(CH3)2(X)2, X = nia (C5), iso (C6) were also prepared and all the complexes were spectroscopically studied in comparison to their related ligands and to each other. The crystalstructure of complexes C1, C3, C4, and C5 were determined by X-ray crystallography. –Sn–Cl···H–N– major hydrogen bonds beside other electrostatic interactions produced a three dimensional polymeric cluster
三种具有式的氨基磷酸酯配体 RP(Ø)R.2个′,R =烟酰胺(nia),R′= NHC(CH 3)3(L 1),NH(C 6 H 11)(L 2);R =异烟酰胺(iso),NH(C 6 H 11)(L 3)及其具有式SnCl 2(CH 3)2(X)2的新有机锡(IV)配合物,X = L 1(C 1),L 2(C 2), L 3(C 3)加SnCl 2(CH合成3)2(L 4)2(C 4),L 4 = isoP(O)[NHC(CH 3)3 ] 2,并用1 H,13 C,31 P,119 Sn NMR,IR表征,紫外可见光谱和元素分析。nia和iso的两个新型配合物,分子式为SnCl 2(CH 3)2(X)2,X = nia(C 5),iso(C 6还制备了),并通过光谱研究了所有配合物及其相关配体以及彼此之间的关系。配合物C 1,C 3,C 4和C 5的晶体结构通过X射线晶体学测定。–Sn
Two novel Ag(I) complexes of N-nicotinyl phosphoric triamide derivatives: Synthesis, X-ray crystal structure and in vitro antibacterial and cytotoxicity studies
characterized by NMR, IR, UV–Vis spectroscopy and elemental analysis. Molecular structures of C1 and C2 were determined by X-ray crystallography and revealed that coordination of ligands to Ag(I) has been occurred from the nitrogen atom of the pyridine ring. Also, compound C1 exists as two conformers in crystalline structure which are weakly connected to each other through intermolecular Ag…OC electrostatic
N-烟碱,N',N''-双(环己基)磷酸三酰胺,3-NC 5 H 4 C(O)NHP(O)[NH(C 6 H 11)] 2(L的新Ag(I)络合物1)和N-烟碱基N',N''-双(叔丁基)磷三酰胺,3-NC 5 H 4 C(O)NHP(O)[NHC(CH 3)3 ] 2(L 2) ,分子式为Ag(L 1)2 NO 3(C 1)和Ag(L 2)2 NO 3(C 2))的合成,并通过NMR,IR,UV-Vis光谱和元素分析进行表征。通过X射线晶体学测定C 1和C 2的分子结构,发现从吡啶环的氮原子发生了配体与Ag(I)的配位。而且,化合物C 1以两个构象形式存在于晶体结构中,它们通过分子间的Ag…OC静电相互作用彼此弱连接。筛选Ag(I)复合物和相应的配体对选定的革兰氏阳性和革兰氏阴性细菌的抗菌活性,显示出对复合物的杀菌活性。体外研究了化合物对人癌细胞系,HeLa(宫颈癌),MCF-7(乳