Registration Number
0220U101406,
0119U101483
, R & D reports
Title
Development of acid-base catalysts on the basis of hierarchical zeolites for reactions of formation of nitrogen-containing heterocyclic compounds
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Head
Shvets Oleksii V.,
Registration Date
10-02-2020
Organization
L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine
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The method of synthesis of hierarchical zeolites nanocomposites of structural types MOR, BEA, MFI and MTW with nanoparticles of zinc, titanium and magnesium oxides and the study of their structural-sorption and acid-basic properties are developed.
Magnesium oxide or cesium carbonate doped hierarchical BEA zeolites are the most active catalysts for the synthesis of 2-aminothiophenes from cycloalkanones with a yield of 70 - 100%, which is important for the synthesis of compounds with insecticidal, antibacterial, antifungal activities.
The results of catalytic studies for a number of cationic forms of aluminium-, titanium- and aluminotitanosilicate hierarchical zeolites (Na, Cs, H) of structural types BEA, MOR and MTW, as well as their nanocomposites with magnesium, zinc and titanium oxides (in comparison with homogeneous (C2H5)2N catalyst)) and layered double magnesium/ aluminum hydroxide show that the hierarchical BEA zeolites supplemented with magnesium oxide or cesium carbonate and the MTW structural titanosilicate zeolites show the highest catalytic activity.
For the most active CsAlSi-BEAnp-SDA9 catalyst, the catalytic activity is reduced in the range of cyclohexanone (100% yield) -cycloheptanone-cyclopentanone-cyclooctanone (6 , whereas for MgO / AlSi-BEAnp-SDA9 the conversion and yield for cyclopentanone are higher than for cycloheptanone. It is established that the catalytic activity of the studied zeolite materials increases with the basicity and porosity of the materials.
Product Description
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Konysheva Kateryna M.
Kurmach Mykhailo M.
Chernenko Zhanna Vasylivna
Yaremov Pavlo Stepanovych
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2020-04-02
