652984-82-2Relevant academic research and scientific papers
Layered Zn2[Co(CN)6](CH3COO) double metal cyanide: A two-dimensional DMC phase with excellent catalytic performance
Marquez, Carlos,Simonov, Arkadiy,Wharmby, Michael T.,Van Goethem, Cédric,Vankelecom, Ivo,Bueken, Bart,Krajnc, Andra?,Mali, Gregor,De Vos, Dirk,De Baerdemaeker, Trees
, p. 4868 - 4875 (2019)
Double metal cyanides (DMCs) are well known, industrially applied catalysts for ring opening polymerization reactions. In recent years, they have been studied for a variety of catalytic reactions, as well as other applications, such as energy storage and
Increasing the availability of active sites in Zn-Co double metal cyanides by dispersion onto a SiO2 support
Marquez, Carlos,Rivera-Torrente, Miguel,Paalanen, Pasi P.,Weckhuysen, Bert M.,Cirujano, Francisco G.,De Vos, Dirk,De Baerdemaeker, Trees
, p. 92 - 99 (2017)
Zn-Co double metal cyanides (DMCs) were dispersed on silica by dry and liquid-assisted (LAG) grinding to improve the catalytic performance of the DMC phase. The characterization of the resulting materials by transmission electron microscopy, N2 physisorption, and powder X-ray diffraction indicated that the presence of water during the grinding step, not only helped to preserve the structural and textural properties of the DMC, but also facilitated the dispersion of the active phase onto the silica support. The accessibility of the Lewis acid sites was increased, as evidenced by FTIR spectroscopy with pyridine as probe molecule. The catalytic activity of the DMC phase for both the hydroamination of phenylacetylene with 4-isopropylaniline and the ring opening polymerization of 1,2-epoxyhexane was enhanced upon dispersion on silica due to the greater availability of the active Zn(II) sites. As a result, higher turnover frequencies were obtained upon decreasing the amount of DMC in the sample. The positive effect on the catalytic activity was the most pronounced for the catalysts prepared via LAG.
Lewis acid double metal cyanide catalysts for hydroamination of phenylacetylene
Peeters, Annelies,Valvekens, Pieterjan,Vermoortele, Frederik,Ameloot, Rob,Kirschhock, Christine,De Vos, Dirk
, p. 4114 - 4116 (2011)
Double metal cyanides (DMCs) are highly active recyclable heterogeneous catalysts for hydroamination of phenylacetylene with 4-isopropylaniline. The best hydroamination yields are obtained with Zn-Co DMCs, especially if the particle size is decreased by a
HΒ Catalyzed Condensation Reaction Between Aromatic Ketones and Anilines: To Access Ketimines (Imines)
Amrutham, Vasu,Mameda, Naresh,Kodumuri, Srujana,Chevella, Durgaiah,Banothu, Rammurthy,Gajula, Krishna Sai,Grigor’eva, Nellya Gennadievna,Nama, Narender
, p. 2982 - 2986 (2017/10/09)
Abstract: A simple approach for the formation of imines by condensation of ketones and anilines over heterogeneous catalyst (Hβ zeolite) has been successfully developed. The present catalytic system scope was explored for various aromatic ketones and anil
Zn-Co double metal cyanides as heterogeneous catalysts for hydroamination: A structure-activity relationship
Peeters, Annelies,Valvekens, Pieterjan,Ameloot, Rob,Sankar, Gopinathan,Kirschhock, Christine E. A.,De Vos, Dirk E.
, p. 597 - 607 (2013/05/09)
Zn-Co double metal cyanide (DMC) materials are effective heterogeneous catalysts for intermolecular hydroaminations. Using the reaction of 4-isopropylaniline with phenylacetylene as a test, the effect of different catalyst synthesis procedures on the cata
Copper(II) ion exchanged AlSBA-15: A versatile catalyst for intermolecular hydroamination of terminal alkynes with aromatic amines
Shanbhag, Ganapati V.,Joseph, Trissa,Halligudi
, p. 274 - 282 (2008/09/17)
The hydroamination reaction offers a very attractive route for the synthesis of alkylated amines and their derivatives with no byproduct formation. AlSBA-15 was synthesized by isomorphous substitution of aluminum into the framework of SBA-15, which induce
