Results 1 to 10 of about 165,523 (233)

Chlorophenols in organic synthesis [PDF]

open access: yesChimica Techno Acta, 2016
This article reviews the alternatives for modifications of p-chlorophenols, p-chloroanisoles with the formation of C-C, C-N, C-S and C-B bonds. It is worth noting the high fundamental as well as practical importance of these reactions due to the ...
V. V. Mitin   +3 more
doaj   +2 more sources

Achieving international biodiversity targets: Learning from local norms, values and actions regarding migratory waterfowl management in Kazakhstan

open access: yesJournal of Applied Ecology, Volume 59, Issue 7, Page 1911-1924, July 2022., 2022
Here, we investigate how global conservation policy and local norms interact to affect the management of a threatened migratory species, which is particularly important for the protection and sustainable management of wildlife that crosses international borders where local contexts may differ.
Isabel L. Jones   +10 more
wiley   +1 more source

Низкотемпературный синтез магний-алюминиевой шпинели [PDF]

open access: yes, 2006
Проведен низкотемпературный синтез магний-алюминиевой шпинели методом термического разложения совместно осажденных гидрооксидов. Получен высокодисперсный материал магний-алюминиевой шпинели со средним размером областей когерентного рассеяния 4…5 нм ...
Ледовская, E.Г.   +7 more
core   +4 more sources

Synthesis and research of cis-trans isomerism for 5-(4-methoxybenzoyl)-6-(4-metoxyphenyl)-6,7-dihydro-5H-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazine

open access: yesChimica Techno Acta, 2014
It was shown that the reaction of 1,2,3-4-methoxybenzaldehyde tiadiazolyl hydrazona and α-bromo-4-methoxyacetophenone in the presence of triethylamine allowes 5-(4-methoxybenzoyl)-6-(4-methoxyphenyl)-6,7-dihydro-5H-[1,2,3]triazolo[5,1-b][1,3,4 ...
T. A. Kalinina   +5 more
doaj   +1 more source

The synthesis and alkylation of p-tetrakischloro-calix[4]arene

open access: yesChimica Techno Acta, 2014
This work is devoted to the development of a chlorination of a calixarenes and a testing of the methods for their preparation to investigate the biological activity of the obtained compounds.
E. A. Ivanova   +2 more
doaj   +1 more source

Reaction of 4-acetyl-1,2,3-triazol-5-olate with hydrazine derivatives

open access: yesChimica Techno Acta, 2015
1,2,3-triazole attracts attention because of the ability opening ring to form α-diazoimin and intramolecular rearrangements with the formation of various heterocyclic systems.
I. S. Khazhieva   +2 more
doaj   +1 more source

Synthesis of 2-(5-arylidene-4-oxo-3-arylthiazolydine-2)-N-phenylethanthiamides derivatives from malondithioamides

open access: yesChimica Techno Acta, 2014
It is shown that thioacetamide are comfortable synthetic blocks for various heterocycles, including thiazole containing a double exocyclic bonds.
K. L. Obydennov   +2 more
doaj   +1 more source

Synthesized theoretical model of domestic media education in higher and leisure institutions: 1984 - 1991 (perestroika period)

open access: yesЗнак: проблемное поле медиаобразования, 2021
A generalized theoretical model of school media education of perestroika period in Soviet Russia was synthesized and schematically presented. Its purpose is aesthetic education, formation of emotional sphere of pupils’ world outlook by means of media ...
Елена Мурюкина
doaj   +1 more source

Synthesis of 5-thiocarbomoyl- and 5-(thiazol-2-yl)-2,3,4,4a,5,6-hexahydro-1Н-pyrido[1,2-a]quinoline-5-carbonitriles

open access: yesChimica Techno Acta, 2015
The tert-amino effect cyclizations are an efficient and convenient route to synthetically as well as biologically important ring-fused tetrahydroquinolines. The method is operationally simple and highly diastereoselective.
A. A. Poluikova   +3 more
doaj   +1 more source

Методика обгрунтування структури експертно-навчальної системи військового призначення

open access: yesSučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2021
Сучасні темпи розвитку інформаційних технологій створили передумови для появи широкого спектру інструментів надання освітніх послуг із використанням технологій дистанційного навчання.
Spartak Нohonіants , Evgeny Rudenko
doaj   +1 more source

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