Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Vergush A. Pivazyan"'
Autor:
Vergush A. Pivazyan, Emma A. Ghazaryan, Armen V. Karapetyan, Roza S. Shainova, Siranush V. Harutyunyan, Asya S. Vorskanyan, Aleksandr P. Yengoyan, Tiruhi A. Gomktsyan
Publikováno v:
Journal of Saudi Chemical Society, Vol 27, Iss 3, Pp 101628- (2023)
Ultrasound-assisted green syntheses of novel potentially bioactive pyrimidine derivatives have been carried out. The same compounds were obtained by conventional methods of synthesis, and the reaction times and yields of final products obtained by th
Externí odkaz:
https://doaj.org/article/1ed104bd41b24049879266bd07d3dbcf
Autor:
Vergush A. Pivazyan, Emma A. Ghazaryan, Roza S. Shainova, Rafael A. Tamazyan, Armen G. Ayvazyan, Aleksandr P. Yengoyan
Publikováno v:
Journal of Chemistry, Vol 2017 (2017)
A convenient, accessible, and high yield method for preparing of 6-methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (1) by treatment of acetoacetic acid ethyl ester with thiourea in sodium methylate was developed. The alkylation of the latter with 3-ch
Externí odkaz:
https://doaj.org/article/e024f4321c1c42a7835336906fc9b65c
Autor:
Aleksandr P. Yengoyan, Zhermen A. Azaryan, Vergush A. Pivazyan, A. G. Ayvazyan, Rafael A. Tamazyan, Emma A. Ghazaryan
Publikováno v:
Letters in Organic Chemistry. 17:149-156
A series of novel 2-S-, 4-, 5-substituted and bicyclic 6-methylpyrimidine-4-ol derivatives including pyrazole, 1,2,4-triazole and pyridazine moieties in the molecule were synthesized by accessible and efficient methods. Thiopyrazolyl derivatives were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a4b91ed35655a50e245651aaa4abc2c
https://doi.org/10.2174/1570178616666190411110415
https://doi.org/10.2174/1570178616666190411110415
Publikováno v:
Russian Journal of General Chemistry. 89:2010-2017
The reaction of 6-methyl-2-(pyrrolidin-1-yl)pyrimidin-4(3H)-one with methyl chloroacetate, followed by hydrazinolysis, gave 2-{[6-methyl-2-(pyrrolidin-1-yl)pyrimidin-4-yl]oxy}acetohydrazide, and the latter was used to obtain a series of new derivativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2db8c788ff94ee2e1575b9907473b83d
https://doi.org/10.1134/s1070363219100050
https://doi.org/10.1134/s1070363219100050
Autor:
Emma A. Ghazaryan, Armen Ayvazyan, Roza S. Shainova, Aleksandr P. Yengoyan, Rafael Tavalyan, Vergush A. Pivazyan
Publikováno v:
American Chemical Science Journal. 16:1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dcd718075b11c6a79c7319488321c0d
https://doi.org/10.9734/acsj/2016/28201
https://doi.org/10.9734/acsj/2016/28201
Autor:
A. G. Ayvazyan, Roza S. Shainova, Emma A. Ghazaryan, Aleksandr P. Yengoyan, Vergush A. Pivazyan, Rafael A. Tamazyan
Publikováno v:
Journal of Chemistry, Vol 2017 (2017)
A convenient, accessible, and high yield method for preparing of 6-methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (1) by treatment of acetoacetic acid ethyl ester with thiourea in sodium methylate was developed. The alkylation of the latter with 3-ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef49925005ec936aefd7a22f4adbb77c
Autor:
Vergush A. Pivazyan, Aram M. Knyazyan, Siranush V. Harutyunyan, Karine A. Eliazyan, Emma A. Ghazaryan, Aleksandr P. Yengoyan
Publikováno v:
Journal of Heterocyclic Chemistry. 50:1281-1289
On the base of synthesized 2-amino and 2-ethylamino-(2-thioxo-3-alkyl-4-methyl-3H-thiazol-5-yl)-[1,3,4]thiadiazoles, their alkyl, acetyl, and alkylacetylamino derivatives are obtained. The alkylation of 2-ethylamino derivatives can occur at both exo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24ea55f27fd67ebd1a7ddf582448c3e6
https://doi.org/10.1002/jhet.1667
https://doi.org/10.1002/jhet.1667
Autor:
Vergush A. Pivazyan, Aleksandr P. Yengoyan, Karine A. Eliazyan, Ruzanna S. Hakobyan, Emma A. Ghazaryan, Siranush V. Harutyunyan
Publikováno v:
hc. 19:275-280
2-Arylsulfonylimino-3,4-dimethyl-2,3-dihydrothiazole-5-carboxylic acid hydrazides 2 were obtained from corresponding 2-arylsulfonylimino-4-methyl-2,3-dihydrothiazole-5-carboxylic acid ethyl esters 1 in a two-step synthesis. Heterocyclization of the h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3143a20bfa3d7b55f5316e7ca3d7f44b
https://doi.org/10.1515/hc-2013-0055
https://doi.org/10.1515/hc-2013-0055
Autor:
Aleksandr P. Yengoyan, Emma A. Ghazaryan, Vergush A. Pivazyan, Ruzanna S. Hakobyan, Karine A. Eliazyan
Publikováno v:
hc. 19:121-124
Readily available 2-(toluene-4-sulfonylamino)ethylamine is a convenient starting material for a two-step synthesis of 1-[2-(toluene-4-sulfonamido)ethyl]thiourea (2). Heterocyclization of the thiourea moiety in 2 furnished a thiazole derivative 3 whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8072dc8f64d065f56270e751e6ecfb79
https://doi.org/10.1515/hc-2013-0005
https://doi.org/10.1515/hc-2013-0005
Autor:
Vergush A. Pivazyan, Aleksandr P. Yengoyan, Karine A. Eliazyan, Emma A. Ghazaryan, Aram M. Knyazyan, Siranush V. Harutyunyan
Publikováno v:
hc. 18:103-108
Base- and acid-mediated heterocyclization of 2-(3-alkyl-4-methyl-2-thioxo-2,3-dihydro-thiazole-5-carbonyl)-hydrazinecarbodithioic acid potassium salts 3, 4 yielded the corresponding 3H-[1,3,4]thiadiazole(oxadiazole)-2-thiones 5–8. The reaction of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf8cc090b290c05de4017796e4f7f069
https://doi.org/10.1515/hc-2012-0040
https://doi.org/10.1515/hc-2012-0040