Výsledky vyhledávání - "G. Parameshwarappa"

Akademický článek

Synthesis of some biologically active 2,4’-bipyridine-5-carbonitriles carrying the 4-hydroxyphenylthio moiety

Autor: T. KARABASANAGOUDA, AIRODY VASUDEVA ADHIKARI, G. PARAMESHWARAPPA

Publikováno v: Journal of the Serbian Chemical Society, Vol 74, Iss 7, Pp 733-743 (2009)

A series of new 4-aryl-2’-[(4-hydroxyphenyl)thio]-6oxo-1,6-dihydro-2,4’-bipyridine-5-carbonitriles (3a–k) and 6-amino-4aryl-2’-[(4-hydroxyphenyl)thio]-2,4’-bipyridine-5-carbonitriles (4a–h) were synthesized from 4-hydroxythiophenol (1). T

Externí odkaz: https://doaj.org/article/50c62a52c5714d0a8da8897d086ee4fa

Zobrazit plný text záznamu

Stability of Single and Three-Way Cross Hybrids for Seed Yield and Other Important Agronomic Traits in Sunflower (Helianthus annuus L.)

Autor: K. G. Parameshwarappa, S Neelima

Publikováno v: Helia. 40

A stability analysis was carried out using nine single crosses and fifteen diverse three-way crosses for nine traits across three locations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46558b3255108c7b8ad8a9b4cad3863f
https://doi.org/10.1515/helia-2016-0020

Zobrazit plný text záznamu

Sequential One-Pot Synthesis of Tri- and Tetrasubstituted Thiophenes and Fluorescent Push–Pull Thiophene Acrylates Involving (Het)aryl Dithioesters as Thiocarbonyl Precursors

Autor: G. Parameshwarappa, Anand Acharya, Hiriyakkanavar Ila, B. Saraiah

Publikováno v: The Journal of Organic Chemistry. 80:414-427

An efficient, one-pot three component synthesis of highly functionalized tri- and tetrasubstituted thiophenes has been reported involving (het)aryl dithioesters as thiocarbonyl precursors. Thus, sequential base mediated condensation of readily availa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6659b76cd048ca703bce6e6e79bbbfe8
https://doi.org/10.1021/jo502429c

Zobrazit plný text záznamu

Cyclocondensation of Hydroxylamine with 1,3-Bis(het)arylmonothio 1,3-Diketones and 1,3-Bis(het)aryl-3-(methylthio)-2-propenones: Synthesis of 3,5-Bis(het)arylisoxazoles with Complementary Regioselectivity

Autor: Hiriyakkanavar Ila, Toreshettahally R. Swaroop, B. Raghava, G. Parameshwarappa, Anand Acharya, Kanchugarakoppal S. Rangappa

Publikováno v: European Journal of Organic Chemistry. 2014:1882-1892

Efficient routes for the regioselective synthesis of 3,5-bis(het)arylisoxazoles with complementary regioselectivity have been developed. The methods involve the cyclocondensation of hydroxylamine hydrochloride with either 1,3-bis(het)aryl-monothio-su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0576f88bbfbfe5d5b877d91272b0edf7
https://doi.org/10.1002/ejoc.201301667

Zobrazit plný text záznamu

Plný text ve formátu HTML

Synthesis of 2,4,5-Trisubstituted Thiazoles via Lawesson’s Reagent-Mediated Chemoselective Thionation–Cyclization of Functionalized Enamides

Autor: Hiriyakkanavar Ila, S. Vijay Kumar, G. Parameshwarappa

Publikováno v: The Journal of Organic Chemistry. 78:7362-7369

An efficient route to 2-phenyl/(2-thienyl)-5-(het)aryl/(methylthio)-4-functionalized thiazoles via one-step chemoselective thionation-cyclization of highly functionalized enamides mediated by Lawesson's reagent is reported. These enamide precursors a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::165ff2a04be28ee2f711a5aaabeba5fc
https://doi.org/10.1021/jo401208u

Zobrazit plný text záznamu

ChemInform Abstract: One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1] Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones, α-Substituted Methylamines and Sodium Nitrite Through α-Nitrosation of Enaminones

Autor: Somaraju Yugandar, G. Parameshwarappa, Hiriyakkanavar Ila, Saidulu Konda

Publikováno v: ChemInform. 47

An efficient one-pot synthesis of a series of diversely functionalized trisubstituted 4(5)het(aroyl)-2,5(4)-het(aryl)/alkylimidazoles from readily available 1,3-bishet(aryl)monothio-1,3-diketones has been reported. This novel sequential one-pot, thre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bc235f8bf5a3e74e07e6933933b933a
https://doi.org/10.1002/chin.201647139

Zobrazit plný text záznamu

One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1] Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones, α-Substituted Methylamines and Sodium Nitrite through α-Nitrosation of Enaminones

Autor: Hiriyakkanavar Ila, Somaraju Yugandar, Saidulu Konda, G. Parameshwarappa

Publikováno v: The Journal of organic chemistry. 81(13)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8980fe064dfbae3fef0459bce7f4c9ae
https://pubmed.ncbi.nlm.nih.gov/27194455

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání