Zobrazeno 1 - 10
of 23
pro vyhledávání: '"B. Saraiah"'
Publikováno v:
The Journal of Organic Chemistry. 80:414-427
An efficient, one-pot three component synthesis of highly functionalized tri- and tetrasubstituted thiophenes has been reported involving (het)aryl dithioesters as thiocarbonyl precursors. Thus, sequential base mediated condensation of readily availa
Autor:
Arpan Hazra, Santosh K. Yadav, B. Saraiah, S. Vijay Kumar, Hiriyakkanavar Ila, Kanchugarakoppal S. Rangappa, B. Raghava
Publikováno v:
The Journal of Organic Chemistry. 78:4960-4973
Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-aryl-3,5-bis(het)arylpyrazoles with complementary regioselectivity starting from active methylene ketones have been reported. In the first protocol, the new
Publikováno v:
ChemInform. 46
A variety of target compounds can be successfully prepared and besides the thioester reactants, phenyl isothiocyanate (XII) is also efficient.
Publikováno v:
ChemInform. 46
An efficient, one-pot three component synthesis of highly functionalized tri- and tetrasubstituted thiophenes has been reported involving (het)aryl dithioesters as thiocarbonyl precursors. Thus, sequential base mediated condensation of readily availa
Publikováno v:
ChemInform. 46
An efficient approach to the title heterocycles, scaffolds of pharmaceutical drugs and natural products, is developed.
Publikováno v:
The Journal of organic chemistry. 80(5)
An efficient one-pot synthesis of highly functionalized multisubstituted benzo[b]thiophenes and their hetero-fused analogues, such as thieno[2,3-b]thiophenes, indolo[2,3-b]thiophenes, and pyrazolo[3,2-c]thiophenes, has been reported. The overall stra
Autor:
Kanchugarakoppal S. Rangappa, S. Vijay Kumar, Santosh K. Yadav, Arpan Hazra, Hiriyakkanavar Ila, B. Raghava, B. Saraiah
Publikováno v:
ChemInform. 44
The unsymmetrical title compounds are selectively synthesized with complementary regioselectivity by using neutral or basic conditions leading to the pyrazole (V) or (VIII), respectively.
Publikováno v:
ChemInform. 44
Regioselective ring opening of oxazolones of type (IV) [inter alia precursors of aminocarboxylic acids (II)] by diverse nucleophiles followed by Cu-catalyzed ring closure of resulting enamides provides an efficient approach to various 2-phenyl-4,5-su
Publikováno v:
The Journal of organic chemistry. 77(23)
An efficient two-step synthesis of 2-phenyl-4,5-substituted oxazoles involving intramolecular copper-catalyzed cyclization of highly functionalized novel β-(methylthio)enamides as the key step has been reported. These enamides are obtained by nucleo
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