Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Shunan Kaping"'
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Akademický článek
Ultrasound assisted synthesis of 1-amino-3-ferrocenyl-3-oxoprop-1-enes
Autor: Jai N. Vishwakarma, Shilpika Khanikar, Utpalparna Kalita, Shunan Kaping, Madhushree Ray
Publikováno v: Current Chemistry Letters, Vol 7, Iss 2, Pp 35-44 (2018)
A clean and efficient, mediated in water and assisted by ultrasound method for the synthesis of a series of N-substituted 1-amino-3-ferrocenyl-3-oxoprop-1-enes starting from acetyl ferrocene was developed. Our approach offers shortening of the reacti
Externí odkaz: https://doaj.org/article/454e3b30525e42189720bb6f0ab1e728
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4
Efficient synthesis, structure elucidation, and anti-parasitic activities of novel quinolinyl β–enaminones
Autor: Jai Narain Vishwakarma, Shilpika Khanikar, Shunan Kaping, Mrigank Srivastava, Shikha Mishra, Salique Hassan Shaham, Renu Tripathi, Philippe Helissey, Prince Joshi
Publikováno v: Monatshefte für Chemie - Chemical Monthly. 152:665-678
In the present study, a novel series of side chain-modified quinoline β-enaminones were synthesized in good-to-excellent yields. The structures of all the synthesized compounds have been established with the help of spectral and analytical data and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1596878d78d0f7ba93c6ac37ca1f189c
https://doi.org/10.1007/s00706-021-02776-w
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5
Efficient synthesis of diversely substituted pyrazolo[1,5-a]pyrimidine derivatives promoted by ultrasound irradiation in water and their antibacterial activities
Autor: Jai Narain Vishwakarma, Philippe Helissey, Shunan Kaping, Susma Das, Arnab Sen, Jayanti Datta Roy, Shilpika Khanikar
Publikováno v: European Journal of Chemistry. 11:304-313
A green synthetic route leading to the discovery of a series of diversely substituted pyrazolo[1,5- a ]pyrimidines, having CO 2 Et group embedded at position-2 has been unraveled in this article. A series of formylated active proton compounds that we
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6cbb64ac755a39f22c7ae1b7fe016d34
https://doi.org/10.5155/eurjchem.11.4.304-313.2033
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6
A three step one-pot regioselective synthesis of highly substituted pyrazolo[1,5-a]pyrimidines assisted by KHSO4 in aqueous media under ultrasound irradiation
Autor: Philippe Helissey, Shunan Kaping, Jai Narain Vishwakarma
Publikováno v: European Journal of Chemistry. 11:179-186
A simple and efficient synthesis of substituted pyrazolo[1,5- a ]pyrimidine derivatives has been developed by the use of ultrasound. 5-Methyl-4-phenyl-1 H -pyrazol-3-amine required for the synthesis of pyrazolo[1,5- a ]pyrimidine derivatives has been
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3562cfa08102788388638a559a299eda
https://doi.org/10.5155/eurjchem.11.3.179-186.1977
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7
Ultrasound assisted synthesis of pyrazolo[1,5-a]pyrimidine-antipyrine hybrids and their anti-inflammatory and anti-cancer activities
Autor: Shunan Kaping, Laishram Indira Singha, Jai Narain Vishwakarma, Melboureen Sunn
Publikováno v: European Journal of Chemistry. 11:68-79
A series of antipyrinyl-pyrazolo[1,5- a ]pyrimidines have been synthesized by reactions of aminopyrazole (4) with various formylated active proton compounds in the presence of KHSO 4 (aqueous media), under ultrasound irradiation. The structures of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7afbdf2681ba0e3ab17ca1fa1982a27a
https://doi.org/10.5155/eurjchem.11.1.68-79.1942
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8
Ultrasound assisted synthesis of 1-amino-3-ferrocenyl-3-oxoprop-1-enes
Autor: Shilpika Khanikar, Utpalparna Kalita, Shunan Kaping, Madhushree Ray, Jai N. Vishwakarma
Publikováno v: Current Chemistry Letters, Vol 7, Iss 2, Pp 35-44 (2018)
A clean and efficient, mediated in water and assisted by ultrasound method for the synthesis of a series of N-substituted 1-amino-3-ferrocenyl-3-oxoprop-1-enes starting from acetyl ferrocene was developed. Our approach offers shortening of the reacti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ff8debb5dec4d09df72d6ec9dd9185d
http://www.growingscience.com/ccl/Vol7/ccl_2018_4.pdf
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9
Design, synthesis, structure elucidation, and biological activities of 3-(substituted amino)-1-(pyridin-4-yl)propenones and 5-isonicotinoyl-1,2,3,4-tetrahydropyrimidine–adamantane hybrids
Autor: Jai Narain Vishwakarma, Revinus Nongkynrih, Utpalparna Kalita, Laishram Indira Singha, Shunan Kaping, Ivee Boiss
Publikováno v: Monatshefte für Chemie - Chemical Monthly. 148:2155-2171
Novel molecular hybrids of 5-isonicotinoyl-1,2,3,4-tetrahydropyrimidine–adamantane have been synthesized in excellent yields by the reaction of enaminones, 1-adamantanamine, and formaldehyde. Enaminones (Z)-3-alkyl/aralkyl/aryl-1-(pyridin-4-yl)prop
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8f879fa21bc755f593c1f4802fb3103
https://doi.org/10.1007/s00706-017-2020-y
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10
Catalyst-free multicomponent synthesis of novel adamantyl-containing tetrahydropyrimidine carboxylates
Autor: Jai Narain Vishwakarma, Utpalparna Kalita, Shunan Kaping
Publikováno v: Molecular Diversity. 20:581-590
[Formula: see text]-Enaminoesters were generated in situ by the reaction of aliphatic or aromatic primary amines to electron-deficient alkynes, dimethyl acetylenedicarboxylate, and methyl propiolate. [Formula: see text]-Enaminoesters thus formed were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa21014f883427c355428ce06ad2475e
https://doi.org/10.1007/s11030-015-9653-8
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