Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-305-316
V. Limani Hajnuni
The purpose of this study is to determine the water quality of the Sitnica river through the research and determination of some physico-chemical parameters of this water and the degree of pollution with heavy metals and various effluents along the entire flow of the river, within the borders of Republic of Kosovo. The geographical positions of sampling spots were determined by GPS, make GARMIN GEKO, 12 сhannel. The number of sampling spots is 9, and samples in every sampling spot were taken to determine the chemical parameters.The tracking of heavy materials is done through the ICP-MS and ICP-OES method. Following the results of our analyses it found that the temperature is almost unchanged and it is between 11.5 and 12 degrees. Electrical conductivity, starting from the spring, is increasing and it reaches the maximum rate (840 μS/cm) at point S5 (Palaj) as a consequence of industrial water spill and other anthropogenic polluters and again after that it starts to drop down along the flow of the river. The pH of water is between 7.83 in S1(Jezerc) and 8.6 in S3 (Lipjan). The turbidity is also increasing in S5. Total hardness reaches the maximum rate in S4 (Lismir), but it drops again, while the alkalinity reaches the maximum rate in S5. At sampling spot S4, metals Ni, Co, Si, Zn are noted for the maximum concentration comparing to other points, except in sampling spot S9(Mitrovica), where the rate is over 250 μg/dm3 . At the sampling point S9, the maximum content of cadmium is observed, at the point S2( Rubovich) - iron, at the point S1 – chromium. According to the performed chemical analysis, it can be concluded that the pollution of the Sitnitsa River is caused by anthropogenic sources, especially at sampling points S4, S5, S6 (Plemetin) and S9. Namely, where the river Drenica flows into Sitnica, which carries the industrial waters of the ferronickel plant (S4), then S5 and S6, where industrial waters come from thermal plants, and S9, where industrial waters come from the ore smelter in Mitrovica.
{"title":"CHEMOMETRIC ANALYSIS OF THE WATER OF SITNICA RIVER","authors":"V. Limani Hajnuni","doi":"10.32737/2221-8688-2022-3-305-316","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-305-316","url":null,"abstract":"The purpose of this study is to determine the water quality of the Sitnica river through the research and determination of some physico-chemical parameters of this water and the degree of pollution with heavy metals and various effluents along the entire flow of the river, within the borders of Republic of Kosovo. The geographical positions of sampling spots were determined by GPS, make GARMIN GEKO, 12 сhannel. The number of sampling spots is 9, and samples in every sampling spot were taken to determine the chemical parameters.The tracking of heavy materials is done through the ICP-MS and ICP-OES method. Following the results of our analyses it found that the temperature is almost unchanged and it is between 11.5 and 12 degrees. Electrical conductivity, starting from the spring, is increasing and it reaches the maximum rate (840 μS/cm) at point S5 (Palaj) as a consequence of industrial water spill and other anthropogenic polluters and again after that it starts to drop down along the flow of the river. The pH of water is between 7.83 in S1(Jezerc) and 8.6 in S3 (Lipjan). The turbidity is also increasing in S5. Total hardness reaches the maximum rate in S4 (Lismir), but it drops again, while the alkalinity reaches the maximum rate in S5. At sampling spot S4, metals Ni, Co, Si, Zn are noted for the maximum concentration comparing to other points, except in sampling spot S9(Mitrovica), where the rate is over 250 μg/dm3 . At the sampling point S9, the maximum content of cadmium is observed, at the point S2( Rubovich) - iron, at the point S1 – chromium. According to the performed chemical analysis, it can be concluded that the pollution of the Sitnitsa River is caused by anthropogenic sources, especially at sampling points S4, S5, S6 (Plemetin) and S9. Namely, where the river Drenica flows into Sitnica, which carries the industrial waters of the ferronickel plant (S4), then S5 and S6, where industrial waters come from thermal plants, and S9, where industrial waters come from the ore smelter in Mitrovica.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90760497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-297-304
D. D. Spasov, R. M. Mensharapov, N. A. Ivanova, V. Fateev
This paper presents the IR-spectroscopy investigation of interaction between polymer protonconducting membranes (Nafion® brand) and various solvents. The solvent effect on the formed membrane structure is determined. The advantages of saturating membranes with methanol vapors over dipping into water/water-methanol mixture for membrane properties as a solid polymer electrolyte in the fuel cell are shown. An original method of feeding methanol vapors to a fuel cell by a hydrogen flow is proposed. Keywords: membrane, solid polymer el
{"title":"IR SPECTRA STUDY: ADVANTAGES OF METHANOL VAPOR FEEDING FOR NAFION® MEMBRANE STRUCTURE","authors":"D. D. Spasov, R. M. Mensharapov, N. A. Ivanova, V. Fateev","doi":"10.32737/2221-8688-2022-3-297-304","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-297-304","url":null,"abstract":"This paper presents the IR-spectroscopy investigation of interaction between polymer protonconducting membranes (Nafion® brand) and various solvents. The solvent effect on the formed membrane structure is determined. The advantages of saturating membranes with methanol vapors over dipping into water/water-methanol mixture for membrane properties as a solid polymer electrolyte in the fuel cell are shown. An original method of feeding methanol vapors to a fuel cell by a hydrogen flow is proposed. Keywords: membrane, solid polymer el","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80146824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-1-35-39
A. A. Mammadova
The hydrothermal reduction of cobalt and manganese nitrates with graphite in the temperature range of 250-3500C has been investigated to obtain nanosized spinel structures. As a result, Co2Mn3O8 and (Co,Mn)(Co,Mn)2O4 spinel phases with average particle sizes of 42 nm and 66 nm have been obtained depending upon reaction conditions (temperature, reaction time and ratio of reagents). The compounds had the following compositions in accordance with the data of energy dispersive analysis (EDA): C-graphite - 86.2%, Co2Mn3O8 - 13.8%, and C-graphite - 93.2%; (Co,Mn)(Co,Mn)2O4 - 4.8%, Mn3O4 - 1.6%, Co3O4 - 0.5%.
{"title":"INTERACTION OF COBALT AND MANGANESE NITRATES WITH GRAPHITE UNDER HYDROTHERMAL CONDITIONS","authors":"A. A. Mammadova","doi":"10.32737/2221-8688-2022-1-35-39","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-1-35-39","url":null,"abstract":"The hydrothermal reduction of cobalt and manganese nitrates with graphite in the temperature range of 250-3500C has been investigated to obtain nanosized spinel structures. As a result, Co2Mn3O8 and (Co,Mn)(Co,Mn)2O4 spinel phases with average particle sizes of 42 nm and 66 nm have been obtained depending upon reaction conditions (temperature, reaction time and ratio of reagents). The compounds had the following compositions in accordance with the data of energy dispersive analysis (EDA): C-graphite - 86.2%, Co2Mn3O8 - 13.8%, and C-graphite - 93.2%; (Co,Mn)(Co,Mn)2O4 - 4.8%, Mn3O4 - 1.6%, Co3O4 - 0.5%.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"167 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88455708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-2-138-144
S. A. Geraybeyli
The article deals with the issue of secondary recycling municipal solid waste (MSW) into complex mineral fertilizers using domestic agricultural raw materials. Used in the recycling were slag from combustion of MSW and poor phosphorite. The nature of the decomposition of phosphorite 50-80% acid H2SO4 was studied at an acid consumption rate of 60-110%, of the consumption rate of acid H2SO4, which made it possible to identify optimal conditions used also for recycling binary raw materials. The increase in the content of assimilable Р2О5 has been uncovered in the liquid phase during the recycling binary raw materials in comparison with the decomposition of phosphorite under similar conditions. The role of MSW of slag in increasing the content of assimilable Р2О5 due to the improvement of conditions for the diffusion of molecules of the formed phosphoric acid to phosphorite particles is explained. The possibility of regulating the characteristics of the obtained complex mineral fertilizers by the ratio of the components of raw materials is shown.
{"title":"RECYCLING SLAG FROM COMBUSTION OF MSW INTO COMPLEX MINERAL FERTILIZERS USING POOR PHOSPHORITE","authors":"S. A. Geraybeyli","doi":"10.32737/2221-8688-2022-2-138-144","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-2-138-144","url":null,"abstract":"The article deals with the issue of secondary recycling municipal solid waste (MSW) into complex mineral fertilizers using domestic agricultural raw materials. Used in the recycling were slag from combustion of MSW and poor phosphorite. The nature of the decomposition of phosphorite 50-80% acid H2SO4 was studied at an acid consumption rate of 60-110%, of the consumption rate of acid H2SO4, which made it possible to identify optimal conditions used also for recycling binary raw materials. The increase in the content of assimilable Р2О5 has been uncovered in the liquid phase during the recycling binary raw materials in comparison with the decomposition of phosphorite under similar conditions. The role of MSW of slag in increasing the content of assimilable Р2О5 due to the improvement of conditions for the diffusion of molecules of the formed phosphoric acid to phosphorite particles is explained. The possibility of regulating the characteristics of the obtained complex mineral fertilizers by the ratio of the components of raw materials is shown.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88629484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-256-263
K.X. Aghayeva, V. Baghiyev
The activity of tungsten-containing catalysts in the reaction of isomerization of butene-1 to butenes-2 was studied in the work. The results obtained showed that the ^ introduction of the second element into the composition of the tungsten oxide catalyst had a different effect on its activity in the butene-1 isomerization reaction. It was established that an increase in the amount of molybdenum in the composition of a binary tungsten-containing catalyst at low temperatures leads to a decrease in the degree of butene-1 isomerization while at high temperatures it leads to an increase in the rate of butene-1 isomerization. It found that the addition of titanium to the composition of the tungsten oxide catalyst leads to an increase in the butene-1 isomerization rate. When copper is added to the composition of the tungsten oxide catalyst, the total yield of butene-2 passes through a maximum, and on samples rich in copper, the isomerization of butene-1 practically does not occur. It revealed that the activity of binary tungsten oxide catalysts in the isomerization reaction of butene-1 to butenes-2 changes in the following order: Ti-W-O > Mo-W-O > Cu-WO.
{"title":"INVESTIGATION OF THE ISOMERIZATION REACTION OF BUTENE-1 TO BUTENES-2 ON BINARY TUNGSTEN-CONTAINING CATALYSTS","authors":"K.X. Aghayeva, V. Baghiyev","doi":"10.32737/2221-8688-2022-3-256-263","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-256-263","url":null,"abstract":"The activity of tungsten-containing catalysts in the reaction of isomerization of butene-1 to butenes-2 was studied in the work. The results obtained showed that the ^ introduction of the second element into the composition of the tungsten oxide catalyst had a different effect on its activity in the butene-1 isomerization reaction. It was established that an increase in the amount of molybdenum in the composition of a binary tungsten-containing catalyst at low temperatures leads to a decrease in the degree of butene-1 isomerization while at high temperatures it leads to an increase in the rate of butene-1 isomerization. It found that the addition of titanium to the composition of the tungsten oxide catalyst leads to an increase in the butene-1 isomerization rate. When copper is added to the composition of the tungsten oxide catalyst, the total yield of butene-2 passes through a maximum, and on samples rich in copper, the isomerization of butene-1 practically does not occur. It revealed that the activity of binary tungsten oxide catalysts in the isomerization reaction of butene-1 to butenes-2 changes in the following order: Ti-W-O > Mo-W-O > Cu-WO.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"87 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87694863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-242-248
Y. B. Ramazanova
The paper presents the results of research into the biostability of M-10 base oil samples with addition of protective additives for various purposes which are a part of the earlier composition of M-14В2 lubricating oil developed by us. It was established that despite the different nature of these additives (alkyl phenolates, dithiophosphates, sulfonates), all these samples are affected by microorganisms. It found that the introduction of 0,25% α-phenyl-β-nitroethene into the composition of these samples provides their long-term protection from microbiological damage. Based on the results obtained, a new biostable lubricating oil composition for marine, locomotive and stationary diesel engines was developed which does not lose its performance properties for a long time.
{"title":"BIOSTABLE LUBRICANT COMPOSITION FOR MARINE, LOCOMOTIVE AND STATIONARY DIESELS","authors":"Y. B. Ramazanova","doi":"10.32737/2221-8688-2022-3-242-248","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-242-248","url":null,"abstract":"The paper presents the results of research into the biostability of M-10 base oil samples with addition of protective additives for various purposes which are a part of the earlier composition of M-14В2 lubricating oil developed by us. It was established that despite the different nature of these additives (alkyl phenolates, dithiophosphates, sulfonates), all these samples are affected by microorganisms. It found that the introduction of 0,25% α-phenyl-β-nitroethene into the composition of these samples provides their long-term protection from microbiological damage. Based on the results obtained, a new biostable lubricating oil composition for marine, locomotive and stationary diesel engines was developed which does not lose its performance properties for a long time.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87728891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-358-365
А.М. Sardarly
The phase composition of vanadium and vanadium-antimony-containing samples of γ-Al2O3 and the degree of oxidation of vanadium in them were examined by XRD and EPR methods, respectively. The data of XRD and EPR spectroscopy show the formation of highly dispersed vanadium-oxygen and vanadiumantimony-oxygen structures on the surface of the support. It is shown that the EPR spectra of the studied samples are due to "isolated" vanadium ions with an oxidation state of +4 in nonstoichiometric vanadium-oxygen and vanadium-antimony-oxygen formations with a square pyramid local environment structure with a characteristic V=O double bond. The EPR spectra of two types of paramagnetic centers of vanadium, which differ in the distortion of the square-pyramidal structure of the local environment of the vanadium ion, were identified. It was established that the number of ions with an oxidation state of +4 in V,Sb-containing samples depends on the V/Sb ratio in them.
{"title":"PHASE COMPOSITION AND OXIDATION DEGREE OF VANADIUM IN CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF PROPANE","authors":"А.М. Sardarly","doi":"10.32737/2221-8688-2022-3-358-365","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-358-365","url":null,"abstract":"The phase composition of vanadium and vanadium-antimony-containing samples of γ-Al2O3 and the degree of oxidation of vanadium in them were examined by XRD and EPR methods, respectively. The data of XRD and EPR spectroscopy show the formation of highly dispersed vanadium-oxygen and vanadiumantimony-oxygen structures on the surface of the support. It is shown that the EPR spectra of the studied samples are due to \"isolated\" vanadium ions with an oxidation state of +4 in nonstoichiometric vanadium-oxygen and vanadium-antimony-oxygen formations with a square pyramid local environment structure with a characteristic V=O double bond. The EPR spectra of two types of paramagnetic centers of vanadium, which differ in the distortion of the square-pyramidal structure of the local environment of the vanadium ion, were identified. It was established that the number of ions with an oxidation state of +4 in V,Sb-containing samples depends on the V/Sb ratio in them.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88890554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-366-373
L. Safarova
The biocidal activity of the aminomethyl derivatives of 2-mercaptobenzoxazole synthesized by us and being of interest as potential antimicrobial additives to petroleum products and cutting fluids, was studied. The aminomethylation reaction proceeded with the participation of methylene-bis-amines. As a result, the appropriate N-substituted benzoxazolin-2-thiones were obtained. Their structure was proved by NMR 1H. Due to the poor solubility of the synthesized compounds in petroleum products, their salts with petroleum naphthenic acid were obtained for microbiological testing. The results of tests in lubricating oil M-8 show that the naphthenic salts of the synthesized compounds exhibit biocidal activity and their fungicidal properties are higher than bactericidal ones. The petroleum naphthenic acid used in the test in its pure form in the composition of the M-8 lubricating oil is not biostable and is affected by microorganisms. N-piperidinomethylbenzoxazolin-2-thione in the composition of the coolant proved to be a biocide, and its bactericidal properties are higher than fungicidal ones. The results of a microbiological study of an aqueous solution of this compound showed high bactericidal properties in the absence of effectiveness against mold fungi.
{"title":"BIOCIDAL ACTIVITY OF AMINOMETHYL DERIVATIVES OF 2-MERCAPTOBENZOXAZOLE","authors":"L. Safarova","doi":"10.32737/2221-8688-2022-3-366-373","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-366-373","url":null,"abstract":"The biocidal activity of the aminomethyl derivatives of 2-mercaptobenzoxazole synthesized by us and being of interest as potential antimicrobial additives to petroleum products and cutting fluids, was studied. The aminomethylation reaction proceeded with the participation of methylene-bis-amines. As a result, the appropriate N-substituted benzoxazolin-2-thiones were obtained. Their structure was proved by NMR 1H. Due to the poor solubility of the synthesized compounds in petroleum products, their salts with petroleum naphthenic acid were obtained for microbiological testing. The results of tests in lubricating oil M-8 show that the naphthenic salts of the synthesized compounds exhibit biocidal activity and their fungicidal properties are higher than bactericidal ones. The petroleum naphthenic acid used in the test in its pure form in the composition of the M-8 lubricating oil is not biostable and is affected by microorganisms. N-piperidinomethylbenzoxazolin-2-thione in the composition of the coolant proved to be a biocide, and its bactericidal properties are higher than fungicidal ones. The results of a microbiological study of an aqueous solution of this compound showed high bactericidal properties in the absence of effectiveness against mold fungi.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81797117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-325-340
B. Trofimov, E. Schmidt
In this concise review, an emphasis is laid on the important role of superbases as catalysts and reagents in organic synthesis that so far remain underestimated. Diverse approaches to understand the superbasicity phenomenon are considered and the definition of superbase is given. Typical compositions of most widespread superbase systems are systematized and tabulated. The representative classic organic reactions assisted by superbases are surveyed.
{"title":"SUPERBASES IN ORGANIC SYNTHESIS","authors":"B. Trofimov, E. Schmidt","doi":"10.32737/2221-8688-2022-3-325-340","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-325-340","url":null,"abstract":"In this concise review, an emphasis is laid on the important role of superbases as catalysts and reagents in organic synthesis that so far remain underestimated. Diverse approaches to understand the superbasicity phenomenon are considered and the definition of superbase is given. Typical compositions of most widespread superbase systems are systematized and tabulated. The representative classic organic reactions assisted by superbases are surveyed.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81038359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.32737/2221-8688-2022-3-271-276
M.B. Alaskarova
The paper present results of studies of the two-stage preparation of C10-C12 tricyclic vicinal amino alcohols from partially hydrogenated condensation products of cyclopentadiene and cyclohexa-1,3-diene, by epoxidizing them with hydrogen peroxide in the presence of cobalt-containing polyoxomolybdate, followed by aminolysis of the oxidate with diethylamine, morpholine, or piperidine. The structure of the synthesized compounds was confirmed by IK and 1H NMR and spectroscopy. The research into the antimicrobial properties of N-substituted amino alcohols showed their effectiveness as antimicrobial additives to M-8 engine oil.
{"title":"PREPARATION OF HYDROXYAMINO DERIVATIVES OF POLYCYCLIC BRIDGING HYDROCARBONS AND THEIR ANTIMICROBIAL PROPERTIES","authors":"M.B. Alaskarova","doi":"10.32737/2221-8688-2022-3-271-276","DOIUrl":"https://doi.org/10.32737/2221-8688-2022-3-271-276","url":null,"abstract":"The paper present results of studies of the two-stage preparation of C10-C12 tricyclic vicinal amino alcohols from partially hydrogenated condensation products of cyclopentadiene and cyclohexa-1,3-diene, by epoxidizing them with hydrogen peroxide in the presence of cobalt-containing polyoxomolybdate, followed by aminolysis of the oxidate with diethylamine, morpholine, or piperidine. The structure of the synthesized compounds was confirmed by IK and 1H NMR and spectroscopy. The research into the antimicrobial properties of N-substituted amino alcohols showed their effectiveness as antimicrobial additives to M-8 engine oil.","PeriodicalId":10015,"journal":{"name":"Chemical Problems","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89270486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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