Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Kalegowda Shivashankar"'
Publikováno v:
New Journal of Chemistry. 44:18573-18578
An unprecedented synthetic route for the preparation of a library of novel coumarinyl phosphoramidate derivatives via iodine catalysed one-pot four component reactions of ethyl 4-bromo-3-oxo-alkanoate, sodium azide, trialkyl phosphites, and phenols i
Publikováno v:
Letters in Organic Chemistry. 16:676-682
The polycyclic dihydropyridine nucleus represents the heterocyclic system of invaluable core motifs with wide applications in chemical, biological and physical properties. Although this kind of compounds have been extensively synthesized by other gro
Autor:
C. G. Renuka, K.B. Puttaraj, Y.F. Nadaf, Kalegowda Shivashankar, A.G. Pramod, Anil Kumar, M. Basappa
Publikováno v:
Canadian Journal of Physics. 97:548-557
Photophysical and spectral properties of a new benzofuran-derivative-based fluorescent probe 1-(3-Hydroxy-benzofuran-2-yl)-benzo[f]chromen-3-one (1-HBBC) were considered in various parameters of solvents, making use of UV–Vis absorption and fluores
Autor:
Kalegowda Shivashankar, Priya Chacko
Publikováno v:
Polycyclic Aromatic Compounds. 41:368-386
A novel and an expeditious approach for the synthesis of 3-phenyl-[1,2,4]triazolo[3,4-a]phthalazine derivatives has been achieved from 1,4-dichlorophthlazine and benzohydrazides in the presence of ...
Publikováno v:
Journal of Chemical Sciences. 133
A novel and efficient one-pot method has been developed for the synthesis of cyclopropanes by the cyclization of 4-bromomethylcoumrains, benzaldehydes and active methylene groups in 1:1 acetonitrile and water solvent in the presence of KSCN and K2CO3
Publikováno v:
Synthetic Communications. 48:2150-2158
A facile synthesis of a series of pyrimidinone derivatives from the reaction of benzyl halides, (1-bromoethyl)benzene and urea in the presence of pyridine N-oxide (PNO) under solvent-free conditions is described. This transformation presumeably occur
Publikováno v:
Journal of Heterocyclic Chemistry. 55:1375-1381
Autor:
P. Boregowda, S. S. Bellad, C. G. Renuka, M. V. Muregendrappa, Y.F. Nadaf, Kalegowda Shivashankar
Publikováno v:
Journal of Solution Chemistry. 46:1535-1555
The various methods for studying polarities are based on the use of probe molecules, whose molecular spectral profile is significantly affected by the polarity of the medium. The absorption and emission spectra and dipole moments (µ g and µ e) of 2
Autor:
Kalegowda Shivashankar, Priya Chacko
Publikováno v:
Chinese Chemical Letters. 28:1619-1624
A simple one pot procedure for the synthesis of α-amino acyl amide with chromone, indole, and napthalene substitution pattern is presented. This protocol involves the nano structured spinel Co3O4 catalysed coupling of aryl alcohols, anilines, carbox
Publikováno v:
Journal of the Chinese Chemical Society. 64:474-480
A simple one-pot procedure for the preparation of 2,4,5-triphenyl imidazole derivatives is presented. The procedure involves the lead tetraacetate oxidation of 1,2-diols to give aldehydes in situ, which then undergo a three-component reaction with be