Nanoporous TiO<sub>2</sub> containing an ionic liquid bridge as an efficient and reusable catalyst for the synthesis of <i>N</i>,<i>N</i>′-diarylformamidines, benzoxazoles, benzothiazoles and benzimidazoles
In this work, a green and efficient procedure is reported for the preparation of N,N'-diarylformamidines, benzoxazoles, benzothiazoles, and benzimidazoles using nanoporous TiO2 containing an ionicliquid bridge. This reagent is prepared via the modification of nanoporous TiO2 with bis-3-(trimethoxysilylpropyl)-ammonium hydrogen sulfate (TiO2-[bip]-NH2+ HSO4−). The procedure gave the products in excellent
Titanium(III)-Oxo Clusters in a Metal–Organic Framework Support Single-Site Co(II)-Hydride Catalysts for Arene Hydrogenation
作者:Pengfei Ji、Yang Song、Tasha Drake、Samuel S. Veroneau、Zekai Lin、Xiandao Pan、Wenbin Lin
DOI:10.1021/jacs.7b11241
日期:2018.1.10
clusters for supporting single-sitecatalysts. Herein we report that the Ti8(μ2-O)8(μ2-OH)4 node of the Ti-BDC MOF (MIL-125) provides a single-site model of the classical TiO2 support to enable CoII-hydride-catalyzed arenehydrogenation. The catalytic activity of the supported CoII-hydride is strongly dependent on the reduction of the Ti-oxo cluster, definitively proving the pivotal role of TiIII in the performance
Evidence for light-induced oxygen exchange in the oxidation of liquid hydrocarbons on oxygen 18-labelled titanium dioxide
作者:Jongmyung Choi、Donghyeon Kang、Kyu Hyung Lee、Byeongno Lee、Kyung Joong Kim、Nam Hwi Hur
DOI:10.1039/c3ra40460a
日期:——
cyclohexane under UV light was investigated using 18O-labelled TiO2 as the catalyst; this reaction yielded 18O-containing cyclohexanone as the major product. The 18O content in the cyclohexanone product dramatically decreased with increasing reaction time. This isotopic experiment demonstrates that the oxygen atom in cyclohexanone originates from surface oxygen in 18O-labelled TiO2. Similar photoreactions performed
Novel synergistic photocatalytic degradation of antibiotics and bacteria using V–N doped TiO<sub>2</sub> under visible light: the state of nitrogen in V-doped TiO<sub>2</sub>
作者:Neerugatti KrishnaRao Eswar、Praveen C. Ramamurthy、Giridhar Madras
DOI:10.1039/c5nj02861b
日期:——
Interstitial and substitutional nitrogen co-doped in vanadium–TiO2 for simultaneous photocatalytic antibiotic degradation and bacterial inactivation.
在钒掺杂的二氧化钛中同时进行间质和替位氮共掺杂,用于光催化抗生素降解和细菌灭活。
Reactions of sulfinyl carbanions with organometallic compounds: Preparation of (η5-C5H5)2T6H4
作者:C.R. Lucas
DOI:10.1016/s0022-328x(00)86902-8
日期:1982.10
have been observed to have often low reactivity towards neutral transition metal organometallic systems. When reactions do occur they usually involve salt eliminations and formation of complex mixtures containing inter alia organic sulfides, disulfides, freed ligands or their oxides and reduced forms of the organometallic reactants. From the sulfinyl ylide [PhS(O)CH2]Li, exo-[η5-C6H6CH2S(O)Ph]Mn(CO)3