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Showing 1 to 13 of 13 for “"ammonolysis"”.
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A structural and reactivity study of lithium molybdenum nitride
… nitride (LiMoN2) can be formed from the direct ammonolysis of lithium molybdate (Li2MoO4), although it has proved challenging to produce the nitride as a single phase material. The “LiMoN2” samples were observed to be catalytically active for ammonia synthesis in reaction with nitrogen …
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Using chemical catalysis to select and diversify biological-derived intermediates
… efficiency. In the second chapter, we conducted ammonolysis reactions on saturated and unsaturated C4 esters to test the side reactions for converting platform molecules into downstream products. The conjugate addition has been determined as the primary side reaction for unsaturated esters …
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The synthesis of methyl-2-acetamido-3,4,6-0-triacetyl alpha-D-talosaminide
… 2-deoxy α-D-idospyradoside by ammonolysis of methyl 2,3-anhydro 4,6-benzylidene α-D-idospyranoside which was converted to methyl 2-acetamido 4,6-benzylidene talopyranoaide by treatment with sodium acetate in aqueous 2-methoxyethanol. This compound was debenzylidenated with …
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Conjugation of oligonucleotides for drug delivery via a linker derived from Meldrum’s acid and A capture-release method to synthesize long oligonucleotides
… Azide–Alkyne Cycloaddition reaction. Subsequent ammonolysis reaction will release the unmodified full-length oligonucleotide sequences without the need for extensive purification.
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Sol-gel preparation of silicon nitride materials
… materials with other functional properties. Co-ammonolysis of a rare-earth amide with a silicon amide is shown to be an effective route to phosphor materials. Amorphous Tb:SiNx composition show strong photoluminescence and the variation in PL intensity with composition has been probed.
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The synthesis and reactivity of 6- and 8-azaindolizines.
… and a 7-chloro-8-azaindolizine occurred readily. Ammonolysis and hydrolysis were, however, only successful in the case of the former compound. These experimentally-determined sites of reactivity in 6- and 8- azaindolizines are in accord with those predicted from reported pi-electron density …
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Self-Structuring of functionalized micro- and mesoporous organosilicas using boron-silane-precursors
… Chemical cleavage of these moieties (e.g. by ammonolysis or oxidative saponification) yields an organosilica where all functionalities are exclusively located at the pore wall and therefore accessible. The accessibility of the functionalities is a vital point for applications and is not …
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N9 Alkylation and Glycosylation of Purines; A Practical Synthesis of 2-Chloro-2'-deoxyadenosine
… leaving group via benzylation at N3 and then ammonolysis gave cladribine in good yield (79%) for 3 steps. Analogs of purine derivatives with lipophilic groups (butyl, pentyl and 2-phenylpropyl) worked almost as well.</p>
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Advanced Process Design and Modeling Methods for Sustainable and Energy Efficient Processes
… including acid and alkaline hydrolysis, and ammonolysis. We use experimental data to develop a novel activity coefficient based kinetic model for nylon 66 hydrolysis and add degradation reactions to present the first alkaline hydrolysis process design for nylon 66. We investigate different …
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Preparation and properties of carbamates, nitrocarbamates and their derivatives
… gaseous ammonia which caused them to undergo ammonolysis to the ammonium salt of the nitroamine, which substance precipitated from the ethereal solution. It was thought that a similar reaction could be effected by means of primary and secondary amines. Investigation of the reaction showed that …
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Synthese, Charakterisierung und magnetische Eigenschaften von Nitriden des Typs MMFe3N
In the present thesis the synthesis of RhFe3N was optimized by studying the influence of the temperature profile during synthesis on the phase purity. For this purpose it was necessary to set up a new oven system. Thus, the phase purity of RhFe3N was raised up to 94%. With the improved product …
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Strukturelle Merkmale N-modifizierter Braunkohlen unter besonderer Berücksichtigung der Huminstoffe
Motiviert durch die Zunahme der weltweiten Nachfrage nach hochwertigen Humusstoffen wurde am Institut für Holz- und Pflanzenchemie ein neuartiger Humusersatzstoff entwickelt. Dieses N-modifizierte Produkt wird auf Basis eines patentierten Normaldruckverfahrens der oxidativen Ammonolyse (OA) aus …