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Efficient, environment friendly and regioselective synthetic strategy for 2/3-substituted-8,8-dimethyl-8,9-dihydropyrazolo[1,5-a]quinazolin-6(7H)-ones and their structure elucidation

Autor: SUSMA DAS, LABET MARPNA, Jai Vishwakarma

Publikováno v: European Journal of Chemistry. 13:41-48

An efficient and regioselective synthetic reaction friendly to the environment has been described to synthesize various derivatives of pyrazolo[1,5-a]quinozolinone. Condensation of aminopyrazole (4a-m) with formylated dimedone (3) in the presence of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4954059aa2a9e297b14bdf386de19e6
https://doi.org/10.5155/eurjchem.13.1.41-48.2168

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Novel ferrocene-pyrazolo[1,5-a]pyrimidine hybrids: A facile environment-friendly regioselective synthesis, structure elucidation, and their antioxidant, antibacterial, and anti-biofilm activities

Autor: SUSMA DAS, SHIVANGI BORKOTOKY, MAXMILLANDO RYMBAI, VEDANT V BORAH, JAYANTI D ROY, SHUNAN KAPING, PHILIPPE HELISSEY, JAI N VISHWAKARMA

Publikováno v: Journal of Chemical Sciences. 134

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a640c7a8fb939042c644132aec52e40
https://doi.org/10.1007/s12039-022-02064-y

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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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Synthesis, structural elucidation and X-ray crystallographic studies of 1-(3,5-bis(trifluoromethyl)phenyl)-3-(dimethylamino)prop-2-en-1-one

Autor: Shikpika Khanikar, Susma Das, Stability Nongrum, Jai Narain Vishwakarma

Publikováno v: European Journal of Chemistry. 10:381-385

A new enaminone was synthesized by reacting 3,5- bis -(trifluoromethyl)acetophenones and N , N -dimethylformamide dimethyl acetal and its detailed structural and crystalline properties were studied. The crystal data were found to be as C 13 H 11 F 6

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::440720a80b2b3503e2ca36b601556dba
https://doi.org/10.5155/eurjchem.10.4.381-385.1922

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