10138-59-7Relevant articles and documents
CATALYTIC SYNTHESIS OF N-ALKYLOCTAHYDROISOINDOLES
Kozintsev, S. I.,Zhavrid, A. S.,Serzhanin, A. I.,Kozlov, N. S.
, p. 1346 - 1348 (1990)
Catalytic hydroamination of 1,2-bis(hydroxymethyl)cyclohexane by aliphatic nitriles over a nickel catalyst yielded a series of N-alkyl-substituted octahydroisoindoles.Conditions for their synthesis were selected.The IR, PMR, and mass spectra and the proba
Methods for preparing 1,2-cyclohexanedicarboxylate or phthalic acid ester
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, (2019/05/02)
The invention relates to methods for preparing a plasticizer 1,2-cyclohexanedicarboxylate and phthalic acid ester by a biomass route. The preparation method of 1,2-cyclohexanedicarboxylate comprises the following steps: 1. crotonaldehyde, formaldehyde and fumarate (or maleate) are subjected to a D-A cycloaddition reaction under the catalysis of organic base so as to generate diester-substituted cyclohexenecarboxaldehyde; 2. the product is subjected to decarbonylation under a transition metal catalyst to generate cyclohexenedicarboxylate; and 3. cyclohexenedicarboxylate undergoes hydrogenationof a double bond under a transition metal catalyst to generate 1,2-cyclohexanedicarboxylate. The preparation method of phthalic acid ester comprises the following steps: 1. crotonaldehyde, formaldehyde and fumarate (or maleate) are subjected to a D-A cycloaddition reaction under the catalysis of organic base so as to generate diester-substituted cyclohexenecarboxaldehyde; and 2. the product undergoes decarbonylation/aromatization under a transition metal catalyst to generate phthalic acid ester.
Titanium(III)-Oxo Clusters in a Metal-Organic Framework Support Single-Site Co(II)-Hydride Catalysts for Arene Hydrogenation
Ji, Pengfei,Song, Yang,Drake, Tasha,Veroneau, Samuel S.,Lin, Zekai,Pan, Xiandao,Lin, Wenbin
, p. 433 - 440 (2018/01/17)
Titania (TiO2) is widely used in the chemical industry as an efficacious catalyst support, benefiting from its unique strong metal-support interaction. Many proposals have been made to rationalize this effect at the macroscopic level, yet the underlying molecular mechanism is not understood due to the presence of multiple catalytic species on the TiO2 surface. This challenge can be addressed with metal-organic frameworks (MOFs) featuring well-defined metal oxo/hydroxo clusters for supporting single-site catalysts. 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 arene hydrogenation. 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 of the supported catalyst. This work thus provides a molecularly precise model of Ti-oxo clusters for understating the strong metal-support interaction of TiO2-supported heterogeneous catalysts.
Recyclable cobalt(0) nanoparticle catalysts for hydrogenations
Büschelberger, Philipp,Reyes-Rodriguez, Efrain,Sch?ttle, Christian,Treptow, Jens,Feldmann, Claus,Jacobi Von Wangelin, Axel,Wolf, Robert
, p. 2648 - 2653 (2018/05/30)
The search for new hydrogenation catalysts that replace noble metals is largely driven by sustainability concerns and the distinct mechanistic features of 3d transition metals. Several combinations of cobalt precursors and specific ligands in the presence of reductants or under high-thermal conditions were reported to provide active hydrogenation catalysts. This study reports a new method of preparation of small, monodisperse Co(0) nanoparticles (3-4 nm) from the reduction of commercial CoCl2 in the absence of ligands or surfactants. High catalytic activity was observed in hydrogenations of alkenes, alkynes, imines, and heteroarenes (2-20 bar H2). The magnetic properties enabled catalyst separation and multiple recyclings.
PROCESS FOR HYDROGENATION OF POLYCARBOXYLIC ACIDS OR DERIVATIVES THEROF
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Paragraph 0041; 0042; 0043, (2013/06/27)
The disclosure provides a process for hydrogenation of polycarboxylic acids or derivatives thereof, including: hydrogenation of polycarboxylic acids or derivatives thereof in the presence of a catalyst, wherein the catalyst includes an active metal and a
Studies on Organic Fluorine Compounds. XXXI. Oxidative Coupling of Ketone Enolates and Trimethylsilyl Enol Ethers by Means of Cu(OTf)2
Kobayashi, Yoshiro,Taguchi, Takeo,Morikawa, Tsutomu,Tokuno, Etsuko,Sekiguchi, Shoh
, p. 262 - 267 (2007/10/02)
The oxidative coupling of ketone enolates and trimethylsilyl enol ethers by means of cupric trifluoromethanesulfonate is described in detail. 1,4-Diketones were effectively prepared by treating lithium enolates with Cu(OTf)2 in i-PrCN. 1,3-Cyclopentanedione derivatives were synthesized through intramolecular coupling of 2,4-pentanedione derivatives.Treatment of trimethylsilyl enol ethers with Cu(OTf)2 in i-PrCN also afforded the corresponding coupling products. Keywords---Oxidative coupling; cupric trifluoromethanesulfonate; 1,4-diketones; 1,3-cyclopentanediones; trimethylsilyl enol ether
