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Full-Text Articles in Catalysis and Reaction Engineering
Synthesis Of Some N-Oxides Of Pyridylacethylene Amines Based On 2-Methyl-5-Ethynylpyridine, Abduvakhab Ikramov, Odiljon Ziyadullayev, Adkham Khamidjanov, Shavkat Bojariev, Davron Khandamov
Synthesis Of Some N-Oxides Of Pyridylacethylene Amines Based On 2-Methyl-5-Ethynylpyridine, Abduvakhab Ikramov, Odiljon Ziyadullayev, Adkham Khamidjanov, Shavkat Bojariev, Davron Khandamov
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work is to study the reaction of 2-methyl-5-ethynylpyridine N-oxide with some aliphatic and aromatic amines to obtain N-oxides of pyridylacetylenic amines. 2-Methyl-5-ethylpyridine converted to 2-methyl-5-vinylpyridine by dehydrogenation, and 2-methyl-5-ethynylpyridine obtained by bromination and dehydrobromination. 2-methyl-5-ethynylpyridine N-oxide synthesized by oxidation of 2-methyl-5-ethynylpyridine with perhydrol in acetic anhydride. The synthesis of N-oxides of pyridylacetylenic amines by the Mannich reaction carried out. The effect of the solvents: methanol, ethanol and n-dioxane, the catalyst, and the reaction time on the yield of the final product studied. The structure and composition of the synthesized PAA N-oxides were established using IR and …
Research On The Process Of Obtaining Industrial Important From Wheat Straw, Kedelbayev Bakhytzhan, Rakhmanberdiev Gaffar, Lahanova Kulzada, Kalymbetov Gani
Research On The Process Of Obtaining Industrial Important From Wheat Straw, Kedelbayev Bakhytzhan, Rakhmanberdiev Gaffar, Lahanova Kulzada, Kalymbetov Gani
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work was to develop a process of chemical hydrolytic hydrogenation of cellulose wheat straw, with the aim of increasing the yield of valuable products necessary for the biotechnology, pharmaceutical and chemical indus-tries. To obtain cellulose wheat straw carried out the process of auto hydrolysis. Studies have been conducted to study the process of chemical hydrolytic hydrolysis and hydrogenation of cellulose from rice processing waste, and optimal process parameters have been developed. As a result, we have implemented a combined (hybrid) hydrolysis-hydrogenation process for producing sorbitol. Developed catalysts for this process, investigated their activity. The influence of …
Synthesis Of Pyridine Bases And Application As Corrosion Inhibitors, Sarsenbaev Nurlan Tenelbayevich, Kadirov Xasan Irgashevich
Synthesis Of Pyridine Bases And Application As Corrosion Inhibitors, Sarsenbaev Nurlan Tenelbayevich, Kadirov Xasan Irgashevich
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work was to obtain corrosion inhibitors. It has been established that heterocyclic compounds, including pyridine and its derivatives, are more frequently used as the active component in the combination of modern inhibitors of carrosion The catalytic reaction of obtaining pyridine and its derivatives by passing a mixture of acetaldehyde and formalin with ammonia was studied. By modifying the mixture of the obtained pyridine bases with urotropine, acrylic emulsion, thiourea, copper salts, etc., compositions are obtained that can serve as inhibitors of hydrochloric acid treatment.