- PATTERNED FINE PARTICLE FILM STRUCTURES
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A patterned fine particle film structure includes a fine particle layer including fine particles arranged and bound to a surface of a substrate coated with a patterned film including a first film compound having a first functional group. The fine particles are coated with films including a first coupling agent having a first coupling reactive group that undergoes a coupling reaction with the first functional group to form a bond. The fine particle layer is bound by a bond formed through a coupling reaction. In an embodiment, fine particles coated with films of a film compound that reacts with the first coupling reactive group and the fine particles are alternately bound to the substrate.
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- CATALYTIC SYNTHESIS OF C-ALKYLIMIDAZOLES OVER PLATINUM-ALUMINA CATALYSTS
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The synthesis of C-alkylimidazoles from 1,2-diamines and carboxylic acids over bifunctional platinum-alumina catalysts has been studied.It has been shown that this method is effective for the synthesis of 2-alkyl and 2,4-dialkylimidazoles including imidazoles with long-chain alkyls.The effect of the reaction temperature, space velocity of the flow of the raw materials, and dilution by hydrogen on the yield of product has been examined for the example of the synthesis of 2-methylimidazole from ethylenediamine and acetic acid, and the stability of the catalyst in continuous reaction cycles with intermediate oxidative regeneration has been studied.The composition of the accompanying products has been established and a mechanism proposed for their formation.Keywords: bifunctional catalyst, platinum-alumina catalyst, alkylimidazoles, 2-methylimidazole.
- Gitis, K. M.,Neumoeva, G. E.,Raevskaya, N. I.,Arutyunyants, G. A.,Isagulyants, G. V.
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p. 728 - 734
(2007/10/02)
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