Zobrazeno 1 - 10
of 67
pro vyhledávání: '"A. V. Bol'but"'
Autor:
Natalia A. Syrota, A. V. Bol’but, Mykhailo V. Vovk, Igor I. Chernobaev, Oleksandr S. Liavinets, Sergiy V. Kemskiy
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:841-847
4-(N-Boc-amino)-1Н-1,2,3-triazolecarbothioamides, obtained by a sequential treatment of 4-(N-Boc-amino)-1Н-1,2,3-triazoles with n-BuLi and alkyl isothiocyanates at –78÷–60°C, reacted with ethyl bromoacetate, forming the respective 4-(N-Boc-am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::773c5c0614e984bada26948665d62179
https://doi.org/10.1007/s10593-021-02989-1
https://doi.org/10.1007/s10593-021-02989-1
Autor:
Maxim А. Nechayev, Nazar M. Tsizorik, Yevhenii V. Hrynyshyn, A. V. Bol’but, M. V. Vovk, Anna R. Musiychuk
Publikováno v:
Chemistry of Heterocyclic Compounds. 56:1554-1559
Methylpyrazolo[1,5-a]pyrazine-4-carboxylates were synthesized by palladium-catalyzed carbonylation of 4-chloropyrazolo[1,5-a]-pyrazines at elevated pressure and converted via nitrile intermediates to the corresponding amidoximes and amidines. Cycloco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06c30df14a02b0956dc06dc99bf23a01
https://doi.org/10.1007/s10593-020-02849-4
https://doi.org/10.1007/s10593-020-02849-4
Publikováno v:
Chemistry of Heterocyclic Compounds. 56:1048-1053
4-(N-Boc-amino)-1,2,3-triazole-5-carbaldehydes upon heating under reflux in acetic acid in the presence of pyrrolidine react with cycloalkanones, acetylacetone, 1,3-cyclohexanediones, and malononitrile resulting in annulation of the pyridine ring wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c4dfa9246e9e9438b2a9b61de922a97
https://doi.org/10.1007/s10593-020-02771-9
https://doi.org/10.1007/s10593-020-02771-9
Autor:
Georgiy G. Yakovenko, A. V. Bol’but, Marta S. Yagodkina-Yakovenko, Oleh А. Lukianov, M. V. Vovk
Publikováno v:
Chemistry of Heterocyclic Compounds. 56:347-354
1-Alkyl-N-Boc-5-formylpyrazol-4-amines react with malononitrile and cyanoacetamide to form 5-amino-1H-pyrazolo[4,3-b]pyridine nitriles and amides, respectively. Cyclocondensation of the obtained derivatives with chloroacetaldehyde, bromotrifluoroacet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::884b48ab5738d4e2bd2333187e6b3f27
https://doi.org/10.1007/s10593-020-02666-9
https://doi.org/10.1007/s10593-020-02666-9
Publikováno v:
Chemistry of Heterocyclic Compounds. 55:1211-1216
N-Boc-protected 5-formyl-1H-pyrazol-4-amines react with malonic acid in pyridine in the presence of pyrrolidine at 45–50°С or with malonic acid monomethyl ether in the presence of pyrrolidine in AcOH under reflux with the formation of 5-oxo-4,5-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::170246c43e2621d404f5a9f50b0fa505
https://doi.org/10.1007/s10593-019-02603-5
https://doi.org/10.1007/s10593-019-02603-5
Publikováno v:
Chemistry of Heterocyclic Compounds. 55:1070-1074
4-Bromopyrazolo[1,5-a]pyrazines react with aryl(hetaryl)boronic acids in the presence of catalytic amounts of Pd(dppf)Cl2·CH2Cl2 and an excess of Cs2CO3 in the MeCN–H2O, 9:1 solvent system with the formation of 4-aryl(hetaryl)pyrazolo[1,5-a]pyrazi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42d3b3eec83f4ca948fb958fc0357a1e
https://doi.org/10.1007/s10593-019-02579-2
https://doi.org/10.1007/s10593-019-02579-2
Publikováno v:
Chemistry of Heterocyclic Compounds. 55:1092-1097
The corresponding ethyl 5-carbonylglycinates were synthesized by condensation of 4-(Boc-amino)-1,2,3-triazole-5-carboxylic acids with ethyl glycinate hydrochloride. They were intramolecularly cyclized with the selective formation of 1,4,6,7-tetrahydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02b97df714a914da46ba50055f938864
https://doi.org/10.1007/s10593-019-02583-6
https://doi.org/10.1007/s10593-019-02583-6
Publikováno v:
Chemistry of Heterocyclic Compounds. 55:893-896
A reaction of 4-chloropyrazolo[1,5-a]pyrazines with tert-butyl cyanoacetate proceeded via the formation of tert-butyl cyano(pyrazolo- [1,5-a]pyrazin-4(5H)-ylidene)ethanoates as intermediates and led to pyrazolo[1,5-a]pyrazin-4-ylacetonitriles, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c64aa37b0d0a02fd31483193d61b7519
https://doi.org/10.1007/s10593-019-02554-x
https://doi.org/10.1007/s10593-019-02554-x
Publikováno v:
Chemistry of Heterocyclic Compounds. 55:379-385
N-Boc-4-aminopyrazole-5-carbaldehydes reacted with aryl, hetaryl, alkyl, and cycloalkyl ketones containing methylene groups. The reactions were accomplished in refluxing acetic acid in the presence of pyrrolidine and resulted in the formation of 5-su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e2f16e002f5e7207912670524c9d169
https://doi.org/10.1007/s10593-019-02468-8
https://doi.org/10.1007/s10593-019-02468-8
Publikováno v:
Journal of Organic and Pharmaceutical Chemistry. 16:28-33
Aim. To study the conditions for reduction of 5-hydroxy[1,2,3]triazolo[4,5-e][1,4]diazepines and develop the method for the synthesis of their tetra- and hexahydroderivatives.Results and discussion. It has been found that the functional hydroxy and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e01bc7b3ebf12a6525c49e73ce0abcd1
https://doi.org/10.24959/ophcj.18.952
https://doi.org/10.24959/ophcj.18.952