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Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

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Каталог книг и продолжающихся изданий
Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН
Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН
Каталог диссертаций и авторефератов диссертаций УрО РАН
Каталог препринтов УрО РАН (1975 г. - )
Имидж-каталог отечественных книг (до 2010 г.)
Имидж-каталог иностранных книг (до 2010 г.)
Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН
Публикации об УрО РАН
Изобретения уральских ученых
Интеллектуальная собственность (статьи из периодики)
Нанотехнологии
Демидовские премии
Гибель династии Романовых
История Урала
Личная библиотека С. В. Вонсовского
Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
Расплавы
Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
Библиометрия
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 Найдено в других БД:Каталог книг и продолжающихся изданий (1)Труды сотрудников Института теплофизики УрО РАН (6)Труды сотрудников Института химии твердого тела УрО РАН (3)Публикации Черешнева В.А. (2)Публикации Чарушина В.Н. (15)
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1.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of nitroxyl radical by direct nucleophilic functionalization of a C-H bond in the azadiene systems [Electronic resource] / M. V. Varaksin, E. V. Tretyakov, I. A. Utepova, G. V. Romanenko, A. S. Bogomyakov, D. V. Stass, R. S. Sagdeev, V. Ovcharenko, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №7. - С. 1469-1473. - Bibliogr. : p. 1473 (15 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NITRONES -- NITRONYL NITROXYLS -- ESR SPECTRA
Аннотация: Cyclic dinitrones underwent nucleophilic substitution of the hydrogen atom in the reaction with a paramagnetic carbanion, the lithium derivative of 4,4,5,5 tetramethyl 4,5 dihydro 1H imidazol 1 oxyl 3 oxide, to give polyfunctional nitronyl nitroxyls

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (7), 1469-1473.pdf
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2.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of chiral ferrocenylazines. Negishi cross-coupling or S N H reactions? [Electronic resource] / A. A Musikhina, I. A. Utepova, N. S. Serebryakov, O. N. Chupakhin, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №8. - С. 1191-1194. - Bibliogr. : p. 1194 (28 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- CHIRAL FERROCENYLAZINES -- NEGISHI
Аннотация: Preparation of new hetaryl-containing planar chiral ferrocene by a nucleophilic substitution of hydrogen in azines was performed using a lithium derivative of (S)-ferrocenyl-p-tolylsulfoxide as s nucleophilic reagent

\\\\expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (8), 1191-1194.pdf
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3.
Инвентарный номер: нет.
   
   V 29

    Varaksin, M. V.
    Direct C-C coupling of cyclic aldonitrones with 1,2,4-triazines using SN H reactions [Электронный ресурс] / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 2012. - Vol.48, №8. - P1213-1219
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRIAZINES -- ALDONITRONES -- SnH REACTIONS
Аннотация: New nitrogen heterocyclic derivatives were obtained by a direct uncatalyzed by metals C-C cross-coupling of a cyclic aldonitrone lithium derivative with 1,2,4-triazines

\\\\Expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2012, v.48, N 8, p.1213-1219.pdf
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4.
Инвентарный номер: нет.
   
   I-55

   
    Imidazole-containing chitosan derivative: a new synthetic approach and sorption properties [Electronic resource] / A. V. Pestov, S. YU. Bratskaya, Yu. A. Azarova, Yu. G. Yatluk // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №10. - С. 1959-1964. - Bibliogr. : p. 1963-1964 (33 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- SORBENT -- GOLD(III)
Аннотация: A novel method for the synthesis of a hetaryl containing chelate amino polymer, namely, N (4(5) imidazolylmethyl)chitosan (IMC), with a degree of substitution up to 0.3 was pro posed. The "synthesis in gel" approach involves direct substitution of the hydroxyl group in 4(5) imidazolylmethanol. The structures of these polymers were confirmed by 1H NMR data. For sorption studies, IMC samples were crosslinked with epichlorohydrin and diglycidyl ethers of ethylene glycol and diethylene glycol. The degrees of swelling and sorption properties of the polymers largely depend on the crosslinking agent and the degree of crosslinking. The sorption capacities of IMC for AuIII, PtIV, and PdII ions are higher than those of the nonmodified polymer. The extraction of noble metal ions from chloride solutions becomes more selective with increasing degree of crosslinking. The sorption capacity of IMC for CoII and NiII ions is higher than those of chitosan and its known N heterocyclic derivatives

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (10), 1959-1964.pdf
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5.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis and properties of isomeric pyridyl-containing chitosan derivatives [Electronic resource] / S. YU. Bratskaya, Yu. A. Azarova, A. S. Portnyagin, A. Mechaev, A. Voit, A. V. Pestov // International Journal of Biological Macromolecules . - 2013. - С. 426-432. - Bibliogr. : p. 431-432 (49 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- PHYSICAL-CHEMICAL PROPERTIES -- PYRIDYL DERIVATIVE
Аннотация: Here we report on the method of synthesis in gel of a new heterocyclic aminopolymer-N-2-(4-pyridyl)ethylchitosan (4-PEC) via direct addition of 4-vinylpyridine to chitosan that yields a derivative with the substitution degree (DS) up to 0.8. The comparison of reactivity, thermal, spectroscopic, and sorption properties of a new derivative and its isomer N-2-(2-pyridyl)ethylchitosan (2-PEC) is presented. 2-PEC has higher sorption capacity and forms more stable chelates with [PdCl4]2- and [PtCl6]2- ions than 4-PEC, but the latter shows higher selectivity to noble metals ions in the presence of Cl- ions. A gradual increase of the sorption capacities and the affinity coefficient for Cu2+ and Ni2+ in the row chitosan<4-PEC<2-PEC was related to the increase of electron donor nitrogen atoms content and chelating properties of 2-PEC. A nearly negligible increase of the 4-PEC sorption capacity for Ag+, as compared to plain chitosan, was suggested to be dependent on the difference in complexation models for 2-PEC and 4-PEC derivatives. The density functional theory (DFT) calculations have shown that the "pendant" model of the complex with Ag(I) is energetically favorable only for 2-PEC derivative, while in cases of chitosan and 4-PEC only "bridge" complexes can be formed that results in lower sorption capacity

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6.
Инвентарный номер: нет.
   
   N 52

   
    New opportunities for the synthesis of quinoxaline-substituted heterocyclic and aryl moieties [Electronic resource] / Y. A. Azev, M. I. Kodess, M. A. Ezhikova, A. M. Gibor, V. I. Baranov, O. S. Ermakova, V. A. Bakulev // Pharmaceutical Chemistry Journal. - 2013. - Vol.47, №9. - С. 498-502. - Bibliogr. : p. 502 (10 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DIMEDONE -- INDANDIONE -- DMSO SOLUTION
Аннотация: 6.7-Difluoroquinoxaline (I) reacted with dimedone, indandione, and 3-methyl-1-phenylpyrazol-5-one in DMSO solution in the presence of acid to form mono-substituted products IIa - c. Heating I with resorcinol in EtOH in the presence of acid gave resorcinol derivative IId. 6.7-Difluoroquinoxaline in the presence of base reacted with 3-methyl-1-phenylmethylpyrazol-5-one to form dipyrazolylmethane III and tetrapyrazolylethane derivative IV. Heating products IIa - c with N-methylpiperazine produced 7-methylpiperazine derivatives Va - c of 2-substituted quinoxalines

\\\\expert2\\nbo\\Pharmaceutical Chemistry Journal\\2013, 47 (9), 498.pdf
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7.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of 3-phenyl-1,2,4-triazine with some C-nucleophiles [Electronic resource] / Y. A. Azev, O. S. Ermakova, M. I. Kodess, M. A. Ezhikova, I. S. Kovalev, V. A. Bakulev // Mendeleev Communications. - 2013. - Vol.23. - С. 294-296. - Bibliogr. : p. 296 (5 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
C-NUCLEOPHILES -- 1,2,4-TRIAZINE -- AMIDRAZONE
Аннотация: Dimedone is added at C(5) of 3-phenyl-1,2,4-triazine to give stable dihydro derivative. Its reaction with 1-aryl-3-methylpyrazol-5- ones proceeds with fragmentation affording 1,1,2,2-tetrakispyrazolylethane and amidrazone derivatives

\\\\expert2\\nbo\\Mendeleev Communications\\2013, v.23, p. 294-296.pdf
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8.
Инвентарный номер: нет.
   
   S 89

   
    Structure of diethyl (polyfluorobenzoyl)malonates and their thermal intramolecular cyclizat / D. N. Bazhin, E. V. Schegolkov, Yu. S. Kudyakova, Ya. V. Burgart, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 929-932
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYFLUOROBENZOYL -- POLYFLUOROBENZOYL CHLORIDES -- CYCLIZATION
Аннотация: The reaction of the C-ethoxymagnesium derivative of diethyl malonate with polyfluorobenzoyl chlorides affords the corresponding (polyfluorobenzoyl)malonates prone to thermal cyclization into coumarin derivatives. The compounds obtained are inherent in keto—enol tautomerism

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 929-932.pdf
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9.
Инвентарный номер: нет.
   
   R 30

   
    Reactions of quinoxaline with 3-methyl-1-phenylpyrazol-5-one / Y. A. Azev, E. D. Oparinaa, I. S. Kovalev, P. A. Slepukhin, R. K. Novikova // Mendeleev Communications. - 2012. - Vol.22, №1. - С. 37-38
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
QUINOXALINES -- PHENYLPYRAZOL -- TRIETHYLAMINE
Аннотация: Quinoxaline during the reaction with 3-methyl-1-phenylpyrazol-5-one in the presence of triethylamine at room temperature in dimethylsulfoxide eliminates o-phenylenediamine and gives 4,4’-methylene-bis(3-methyl-1-phenylpyrazol-5-one) and 1,1,2,2-tetrakis(5-methyl-2-oxo-2-phenyl-1,2-dihydro-3H-pyrazol-4-yl)ethane. The latter was proved to be the intermediate to form the above dipyrazolylmethane derivative

\\\\Expert2\\nbo\\Mendeleev Communications\\2012, v.22, p. 37.pdf
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10.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones / E. V. Nosova, G. N. Lipunova, P. A. Slepukhin, V. N. Charushin // Journal of Fluorine Chemistry. - 2012. - in Press online 17 October
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
FLUORINE-CONTAINING QUINAZOLINONES -- 3-AMINOQUINAZOLIN-4-ONES -- NUCLEOPHILIC DISPLACEMENT REACTIONS
Аннотация: A versatile pathway for the synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones from 4,5-difluoroanthranylic acid has been advanced. Nucleophilic amination–defluorination reaction of the 6,7-difluoro derivative of 3-amino-2-methyl-3H-quinazolin-4-one has been established to occur at position 7, as shown by X-ray crystallographic analysis

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2012, Article in Press, 17 October.pdf
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11.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones [Electronic resource] / E. V. Nosova, G. N. Lipunova, P. A. Slepukhin, V. N. Charushin // Journal of Fluorine Chemistry. - 2013. - Vol.145. - P63-65
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- NUCLEOPHILIC SUBSTITUTION -- X-RAY ANALYSIS
Аннотация: A versatile pathway for the synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones from 4,5-difluoroanthranylic acid has been advanced. Nucleophilic amination–defluorination reaction of the 6,7-difluoro derivative of 3-amino-2-methyl-3H-quinazolin-4-one has been established to occur at position 7, as shown by X-ray crystallographic analysis. --------------------------------------------------------------------------------

\\\\Expert2\\NBO\\Journal of Fluorine Chemistry\\2013, v. 145, p.63.pdf
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12.
Инвентарный номер: нет.
   
   A 62

   
    Anti-HIV activity of complex isoborneol ethers [Электронный ресурс] / A. G. Pokrovskii, O. I. Kiselev, O. N. Chupakhin, V. N. Charushin, M. G. Ponizovskii // Doklady Akademii Nauk . - 1992. - Vol.326, №2. - P376-379
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ANTIVIRUS AGENT -- ENCYCLAN -- QUINOXALINE DERIVATIVE

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13.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis and fluorescent properties of 2-styryl-6,7-difluoro-8-hydroxyquinoline and its Zn(II) complex [Электронный ресурс] / E. V. Nosova, T. V. Stupina, G. N. Lipunova, V. N. Charushin // Journal of Fluorine Chemistry. - 2013. - Vol.150. - P36-38
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
STYRYLQUINOLINE -- Zn(II) COMPLEX -- fLUORINATED QUINOLINES
Аннотация: A synthetic approach to 2-methyl-6,7-difluoro-8-hydroxyquinoline, a key intermediate, has been developed. 6,7-Difluoro derivative of 2-styryl substituted 8-hydroxyquinoline and its Zn(II) complex have been obtained. Effects of fluorine atoms in the benzene ring on photophysical properties of 2-styryl-8-hydroxyquinolines and their Zn(II) complexes have been studied

\\\\Expert2\\NBO\\Journal of Fluorine Chemistry\\2013, v. 150, p.36.pdf
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14.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of 5-substituted 8,8-dimethyl-8,9-dihydro-3H,7H-[1,2]oxazino[5,4,3-de]quinolin-3-ones [Electronic resource] / D. A. Rudenko, P. A. Slepukhin, V. I. Karmanov, M. I. Vakhrin, S. N. Shurov, Yu. A. Shchurov // Chemistry of Heterocyclic Compounds. - 2013. - Vol.48, №10. - 1539-1544.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HYDROXYLAMINE -- QUANTUM-CHEMICAL CALCULATIONS -- TETRAHYDROQUINOLINE-4-CARBOXYLIC ACIDS
Аннотация: The reaction of 2-substituted 7,7-dimethyl-5-oxo-5,6,7,8-tetrahydroquinoline-4-carboxylic acids with hydroxylamine results in the formation of 5-substituted 8,8-dimethyl-8,9-dihydro-3H,7H-[1,2]ox-azino[5,4,3-de]quinolin-3-ones. The structure of the 5-phenyl derivative has been established by X-ray structural analysis. A possible mechanism of the reaction has been proposed on the basis of nonempirical quantum-chemical calculations

\\\\Expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2013, v.48, N 10, p. 1539-1544.pdf
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15.
Инвентарный номер: нет.
   
   M 78

   
    Modification of Fe3O4 magnetic nanoparticles with a GRGD peptide / A. M. Demin, A. V. Vakhrushev, A. V. Mekhaev [и др.] // Russian chemical bulletin. - 2021. - Vol. 70, № 3. - С. 449-456
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MAGNETIC NANOPARTICLES -- RGD PEPTIDES -- PEPTIDE SYNTHESIS
Аннотация: Derivatives of RGD peptides are promising vector molecules for targeting biomolecules and nanoparticles into tumor tissues and are used for the design of diagnostic agents. The immobilization of the glutaryl-containing derivative of Gly-L-Arg(Pbf)-Gly-L-Asp(OMe)2 (GRGD) tetrapeptide on Fe3O4 magnetic nanoparticles (MNPs) was studied. The results of thermogravimetric and elemental analysis, as well as IR spectroscopy, were used to estimate the amount of organic components at each stage of modification of MNPs.

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16.
Инвентарный номер: нет.
   
   L 79

   
    Liposomes loaded with lipophilic derivative of closo-carborane as a potential boron delivery system for boron neutron capture therapy of tumors / A. R. Tsygankova, D. A. Gruzdev, V. V. Kanygin [et al.] // Mendeleev Communications. - 2021. - Vol. 31, № 5. - P659-661
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AMIDE -- CLOSO-CARBORANES -- LIPOSOMES -- U87 TUMOR MODEL -- TOXICITY -- BIODISTRIBUTION
Аннотация: Liposomes encapsulated with lipophilic derivative of 1,2-dicarba-closo-dodecaborane have been obtained and tested for toxicity to glioblastoma U87 cells and biodistribution on a U87MG xenograft mouse model. The liposomes are able to penetrate the tumor and provide boron concentration up to 1.5 mmmmg g–1 with tumor-to-muscle ratio up to 2.4.

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17.
Инвентарный номер: нет.
   

   
    Pyrrolylquinoxaline-2-one derivative as a potent therapeutic factor for brain trauma rehabilitation / E. A. Dutysheva, M. A. Mikeladze, N. D. Aksenov [и др.] // Pharmaceutics. - 2020. - Vol. 12, № 5. - С. 414
Кл.слова (ненормированные):
APOPTOSIS -- CEREBROSPINAL FLUID -- HSP70 -- SMALL MOLECULE -- TRAUMATIC BRAIN INJURY
Аннотация: Traumatic brain injury (TBI) often causes massive brain cell death accompanied by the accumulation of toxic factors in interstitial and cerebrospinal fluids. The persistence of the damaged brain area is not transient and may occur within days and weeks. Chaperone Hsp70 is known for its cytoprotective and antiapoptotic activity, and thus, a therapeutic approach based on chemically induced Hsp70 expression may become a promising approach to lower post-traumatic complications. To simulate the processes of secondary damage, we used an animal model of TBI and a cell model based on the cultivation of target cells in the presence of cerebrospinal fluid (CSF) from injured rats. Here we present a novel low molecular weight substance, PQ-29, which induces the synthesis of Hsp70 and empowers the resistance of rat C6 glioma cells to the cytotoxic effect of rat cerebrospinal fluid taken from rats subjected to TBI. In an animal model of TBI, PQ-29 elevated the Hsp70 level in brain cells and significantly slowed the process of the apoptosis in acceptor cells in response to cerebrospinal fluid action. The compound was also shown to rescue the motor function of traumatized rats, thus proving its potential application in rehabilitation therapy after TBI.

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18.
Инвентарный номер: нет.
   

   
    Development of a method for the thiocarbamoylation of polyepichlorohydrin with a high degree of functionalization / A. P. Rodionova, A. V. Mekhaev, O. V. Koryakova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1167-1173
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYEPICHLOROHYDRIN -- THIOUREA -- SYNTHESIS IN GEL
Аннотация: The conditions for the homogeneous functionalization of polyepichlorohydrin (PECH) with thiourea by the “synthesis in gel” method were experimentally selected. The best solvent for this process is 1,4-dioxane. The reaction mixture visually represents a physical gel in the range of polymer concentrations from 6 to 20%. The composition of the products was characterized by the data of elemental analysis, and specific features of their structure were established using FT-IR spectroscopy and thermogravimetry with the simultaneous IR spectrometric identification of the decomposition products. Thiourea was shown to react with PECH as an ambident nucleophile with the formation of both groups of N-substituted thiourea and fragments of isothiuronium salt. The total degree of functionalization was 90%. The crosslinking of the macromolecules proceeds simultaneously due to which the obtained products with different degrees of functionalization are insoluble in organic solvents. The thiocarbamoylated PECH derivative demonstrates antiselectivity to CuII ions in the sorption of the metal ions of the Irving—Williams series.

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19.
Инвентарный номер: нет.
   

   
    Pharmacological characterization of a novel putative nootropic beta-alanine derivative, MB-005, in adult zebrafish / T. O. Kolesnikova, K. A. Demin, A. V. Kalueff [et al.] // Journal of Psychopharmacology. - 2022. - Vol. 36, № 7. - P779-902
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Cognitive deficits represent an urgent biomedical problem, and are commonly reduced by nootropic drugs. Animal models, including both rodents and zebrafish, offer a valuable tool for studying cognitive phenotypes and screening novel nootropics. Beta-alanine and its derivatives have recently been proposed to exert nootropic activity.

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20.
Инвентарный номер: нет.
   

   
    Activation effect of β-alanine and chitosan derivative on A. glycyphyllos and A. membranaceus seed germination and seedling growth and development / L. A. Khamidullina, A. V. Pestov, P. D. Tobysheva [et al.] // Agronomy research. - 2021. - Vol. 19, № 2. - P484-495
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Agricultural cultivation of astragalus is fraught with a number of difficulties caused by both certain requirements for climatic conditions and individual characteristics of plants of this genus. In this study, carboxyalkylated derivative of chitosan was first proposed to use for improvement of astragalus propagation. Effects of N-(2-carboxyethyl)chitosan on in vitro A. glycyphyllos and A. membranaceus seed germination and seedling growth and development in comparing with β-alanine and chitosan acetate were detected. Carboxyethylation of chitosan leads to an increase in hydrophilic properties of the molecule, which enhances a penetration of nutrients inside the plant owing to improved solvating effect and bioadhesive activity. Seed germination assay were performed on Murashige-Skoog growth medium with or without tested compounds. N-2-Carboxyethylated derivative of chitosan was found to demonstrate active stimulating effect on the plant growth and development, contrary to the effect of acetate chitosan, but not to cause an activating effect on seed germination, while β-alanine does.

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