Ji, Pengfei et al. published their research in Journal of the American Chemical Society in 2016 |CAS: 52537-00-5

The Article related to zirconium hafnium tetrakiscarboxybiphenylmethane metal organic framework preparation hydrogenation catalyst, structure secondary building unit zirconium hafnium tetrakiscarboxybiphenylmethane mof, cobalt zirconium mof complex preparation chemoselective hydrogenation catalyst and other aspects.Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole

On September 21, 2016, Ji, Pengfei; Manna, Kuntal; Lin, Zekai; Urban, Ania; Greene, Francis X.; Lan, Guangxu; Lin, Wenbin published an article.Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole The title of the article was Single-Site Cobalt Catalysts at New Zr8(μ2-O)8(μ2-OH)4 Metal-Organic Framework Nodes for Highly Active Hydrogenation of Alkenes, Imines, Carbonyls, and Heterocycles. And the article contained the following:

Zirconium and hafnium metal-organic frameworks (MOF) were prepared from a tetrakis(carboxybiphenyl)methane and ZrCl4 or HfCl4; the framework contains two types of secondary building units (SBUs): cubic M8(μ2-O)8(μ2-OH)4 and octahedral M6(μ3-O)4(μ3-OH)4. While the M6-SBU is isostructural with the 12-connected octahedral SBUs of UiO-type MOFs, the M8-SBU is composed of eight MIV ions in a cubic fashion linked by eight μ2-oxo and four μ2-OH groups. Metalation of the Zr-MTBC MOF with CoCl2 followed by treatment with NaBEt3H yielded a highly active and reusable solid Zr-MOF-cobalt hydride catalyst for the hydrogenation of alkenes, imines, carbonyls, and heterocycles. The Zr-MOF-cobalt hydride catalyst tolerated a range of functional groups and was a highly active catalyst for the hydrogenation of alkenes, including tri- and tetra-substituted alkenes, with TON > 8000 for the hydrogenation of 2,3-dimethyl-2-butene. Structural and spectroscopic studies indicate that the site isolation of and open environments around the cobalt-hydride catalytic species at the cubic zirconium SBU sites of the MOF are responsible for the high catalytic activity in the hydrogenation of a wide range of challenging substrates. The structures of the zirconium and hafnium MOF and of the cobalt chloride complex of the zirconium MOF were determined by X-ray crystallog. The experimental process involved the reaction of 6-Chloro-2,3-dihydro-1H-indole(cas: 52537-00-5).Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole

The Article related to zirconium hafnium tetrakiscarboxybiphenylmethane metal organic framework preparation hydrogenation catalyst, structure secondary building unit zirconium hafnium tetrakiscarboxybiphenylmethane mof, cobalt zirconium mof complex preparation chemoselective hydrogenation catalyst and other aspects.Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles