Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kumar K. Mahalanabis"'
Autor:
Subhash Chandra Bhattacharya, Arindam Sarkar, Kumar K. Mahalanabis, Smritimoy Pramanik, Paltu Banerjee, A. K. Mukherjee
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 71:1327-1332
How solvent conditions such as solvent polarity and hydrogen-bonding affect the fluorescence of a newly synthesized 3-pyrazolyl 2-pyrazoline derivative (Pyz) having pharmaceutical activity has been explored. The solvatochromic effect of Pyz is due to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2529b495494d1bce5091cbeddb1fc68
https://doi.org/10.1016/j.saa.2008.04.011
https://doi.org/10.1016/j.saa.2008.04.011
Autor:
Kumar K. Mahalanabis, Subhash Chandra Bhattacharya, Sujan Chatterjee, Paltu Banerjee, Smritimoy Pramanik, A. K. Mukherjee
Publikováno v:
Chemical Physics Letters. 440:313-320
S 0 → S 1 and S 0 → S 2 electronic transitions have been observed in UV–Visible absorption spectroscopy of 3-pyrazolyl-2-pyrazoline (PZ) in different homogeneous solvents. Radiative emissions and relaxation processes from S 1 and S 2 states of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eed64c90b3c73451ca44e5ee6c808d0
https://doi.org/10.1016/j.cplett.2007.04.031
https://doi.org/10.1016/j.cplett.2007.04.031
Publikováno v:
Synthetic Communications. 34:2681-2689
α‐Cyano‐β‐enaminones, obtained by regioselective acylation of β‐enaminonitriles, were smoothly converted to thiones which on oxidative cyclization afforded 3,5‐disubstituted‐4‐isothiazolecarbonitriles in good to excellent yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab9a6287b3c6342b45215eb0012634ee
https://doi.org/10.1081/scc-200025636
https://doi.org/10.1081/scc-200025636
Publikováno v:
Synthetic Communications. 26:4233-4251
Reaction of α, β-unsaturated acid chlorides with primary enaminonitriles in presence of triethylamine affords, under very mild conditions, a simple and highly efficient regiospecific synthesis of polysubstituted 3,4-dihydro-2(1H)-pyridones.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6110e6dcc31af329111184efcafc8e76
https://doi.org/10.1080/00397919608004662
https://doi.org/10.1080/00397919608004662
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e598883baec6fea889e56d3a1669112d
https://doi.org/10.1002/chin.199722153
https://doi.org/10.1002/chin.199722153
Publikováno v:
ChemInform. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3d6be01fbd56cf6d8333021edfcb3d8
https://doi.org/10.1002/chin.199924063
https://doi.org/10.1002/chin.199924063
Autor:
A. K. Mukherjee, Kumar K. Mahalanabis
Publikováno v:
ChemInform. 40
A regio and stereoselective preparation of a new class of substituted 3-pyrazolyl-2-pyrazolines and pyrazoles in good to excellent yields has been developed by reacting 4-cyanopyrazole-5-nitrile imine with dipolarophiles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a59de4db1d28b7b683cc32f8591d4fd
https://doi.org/10.1002/chin.200933125
https://doi.org/10.1002/chin.200933125
Autor:
Manisha Mishra, Kumar K. Mahalanabis
Publikováno v:
ChemInform. 38
Silica supported chromium trioxide is found to be an excellent reagent for oxidative ring closure ofa-cyano-β-thioenaminones to isothiazoles in dichloromethane at room temperature or in dry media under microwave irradiation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10141ea5f52b968d77d53e4258dc09c7
https://doi.org/10.1002/chin.200722110
https://doi.org/10.1002/chin.200722110
Publikováno v:
ChemInform. 37
α-Cyano-β-enaminones, obtained by regioselective acylation of β-aminocrotononitrile, are smoothly and regiospecifically converted into substituted 5-isoxazolones, which on alkaline hydrolysis afford 4-acyl-3-substituted-5-hydroxyisoxazoles in good
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::496a761e369b012b7a95339acec75f1d
https://doi.org/10.1002/chin.200629109
https://doi.org/10.1002/chin.200629109
Publikováno v:
ChemInform. 37
A highly efficient one-pot conversion of β-aminocrotononitrile to secondary enaminonitriles including chiral ones is described. In contrast to β-aminocrotononitrile, some of these N-substituted β-enaminonitriles on reacting with acid chlorides sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e23f4ca6f288e186228c11495b49bf0a
https://doi.org/10.1002/chin.200614053
https://doi.org/10.1002/chin.200614053