Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Suman Kalyan Panja"'
Publikováno v:
Tuning Journal for Higher Education, Vol 10, Iss 2 (2023)
The massive open online course (MOOC) and online learning concepts have received a lot of attention from educational stakeholders all around the world as a result of COVID-19. Initial studies demonstrated that people may use MOOCs as a tool for acade
Externí odkaz:
https://doaj.org/article/3180dc144f9749f8942b26410a79447e
Autor:
Tapas Sarkar, Suman Kalyan Panja, Jaydip Ghosh, Sourav Maiti, Pritam Biswas, Chandrakanta Bandyopadhyay
Publikováno v:
Journal of Heterocyclic Chemistry. 53:449-456
3-Arylaminomethylidenechroman-2-carboxamide has been synthesized by a one-pot three component reaction among 3-formylchromone, aromatic amine, and cyclohexyl isocyanide. 3-(N-alkylsubstitued/unsubstituted)aminomethylidenechroman-2-carboxamides were s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48647bd8fe5b3896875ec81a3739779c
https://doi.org/10.1002/jhet.1929
https://doi.org/10.1002/jhet.1929
Publikováno v:
Journal of Chemical Research. 36:222-225
The three-component reaction involving chromone-3-carbaldehyde, 4-hydroxycoumarin and cyclohexyl isocyanide produces furocoumarin and biscoumarin derivatives. Formation of the latter compound seems to involve cyclohexylamine. Cyclohexyl isocyanide wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92de87d926c67a1075d9156a1a8beeb4
https://doi.org/10.3184/174751912x13319228503277
https://doi.org/10.3184/174751912x13319228503277
Publikováno v:
Synlett. 2011:2001-2004
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c58d6d11d244accaf6ff8da89049c0f
https://doi.org/10.1055/s-0030-1260977
https://doi.org/10.1055/s-0030-1260977
Autor:
T. M. Lakshmykanth, Sourav Maiti, Suman Kalyan Panja, Chandrakanta Bandyopadhyay, Ayan Datta, Ranjan Mukhopadhyay
Publikováno v:
Journal of Heterocyclic Chemistry. 48:763-768
Regio- and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular [3+2] cycloaddition reaction involving azomethine ylide. The reactions were carried out therm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dada08d275d719e4b5fb7e0509ec236
https://doi.org/10.1002/jhet.567
https://doi.org/10.1002/jhet.567
Publikováno v:
Journal of Chemical Research. 35:225-228
On stirring an equimolar mixture of 4-oxo-4 H-chromene-3-carbaldehyde, ninhydrin and cyclohexyl isocyanide in CH2Cl2-MeOH (7:1) at room temperature produces 3-cyclohexylimino-1-(2-hydroxy-1,3-dioxo-2,3-dihydro-1H-inden-2-yl)-1,3-dihydro-9H-furo[3,4-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bed7599f60ccf846c2d0cbe96702fcc
https://doi.org/10.3184/174751911x13015945166625
https://doi.org/10.3184/174751911x13015945166625
Publikováno v:
Tetrahedron. 66:7625-7632
The reaction of 2-(N-alkenyl-N-aryl)amino-4-oxo-4H-1-benzopyran-3-carbaldehyde with dimedone/Meldrum’s acid/4-hydroxycoumarin by heating in ethanol in the presence of pyridine produces polycyclic heterocycles bearing pyridine and pyran rings in a o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a0403ed1de1afbe2074313416ce7467
https://doi.org/10.1016/j.tet.2010.07.028
https://doi.org/10.1016/j.tet.2010.07.028
Publikováno v:
Synlett. 2010:1909-1914
3-Formylchromone reacts with cyclohexyl isocyanide to produce pyrano[3,4-b]chromone, which rearranges to 1-benzopyrano[2,3-c]pyridine when heated with HCl in ethanol.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39cd45040f2b896527faa0af9d1add38
https://doi.org/10.1055/s-0030-1258496
https://doi.org/10.1055/s-0030-1258496
Publikováno v:
Journal of Heterocyclic Chemistry. 47:973-981
2-(Alkyl/arylamino)chromone-3-carbaldehyde reacts with Meldrum's acid, hippuric acid, 4-hydroxycoumarin, diethyl malonate, ethyl acetoacetate, or ethyl benzoylacetate to produce 1-benzopyrano[2,3-b]pyridine-2,5-dione moiety, but ethyl cyanoacetate an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::901835521b1d0bcdd9c43ea5b341bcb5
https://doi.org/10.1002/jhet.397
https://doi.org/10.1002/jhet.397
Publikováno v:
Journal of Chemical Research. 2009:692-695
Heating an equimolar mixture of 6-substituted chromone-3-carbaldehydes, β-naphthol and dimedone in AcOH produces 3,3-dimethyl-11-(4-oxo-4 H-1-benzopyran-3-yl)-1,2,3,4-tetrahydronaphtho[2,1- b]-1-benzopyran-11 H-1-ones, whereas under similar conditio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a8deb62693023c96896c5e40026b40
https://doi.org/10.3184/030823409x12561496499339
https://doi.org/10.3184/030823409x12561496499339