Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Kasiviswanadharaju Pericherla"'
Publikováno v:
Synthesis. 48:4305-4346
Ytterbium(III) triflate is an efficient and water-tolerant Lewis acid that has been used as a catalyst for a wide range of organic transformations. Various three-, four-, five-, and six-membered, as well as fused, heterocycles have been synthesized u
Publikováno v:
Asian Journal of Organic Chemistry. 4:1380-1385
A highly efficient copper-catalyzed one-pot tandem protocol has been developed for the synthesis of naphtho-fused imidazo[1,2-a]pyridines. The transformation involves a Knoevenagel condensation followed by a chemoselective cross-coupling reaction alo
Publikováno v:
Medicinal Chemistry Research. 24:3117-3126
A series of novel piperazine-1,2,3-triazole derivatives, which entailed the bioisosteric replacement of the imidazole moiety and hybridization of two drug scaffolds was prepared by employing the regioselective copper (I)-catalysed azide-alkyne 1,3-di
Publikováno v:
Synthesis. 47:887-912
Advances in the last decade for the synthesis of the imidazo[1,2-a]pyridine scaffold from various substrates employing approaches such as multicomponent reactions, tandem processes, rearrangement reactions, inter- and intramolecular oxidative/reducti
Publikováno v:
Tetrahedron Letters. 56:549-553
An efficient and facile protocol has been developed for the synthesis of pyrazolo[1,5-a]pyrimidines through the tandem reaction of 3-aminopyrazoles and chalcones in the presence of catalytic amounts of KOH. The reported method offers access to 5,7-di
Publikováno v:
RSC Advances. 5:3670-3677
A facile synthesis of 3-aroylimidazo[1,2-a]pyridine derivatives has been achieved through the one-pot, three-component tandem reaction of acetophenones, arylaldehydes and 2-aminopyridines in the presence of a catalytic amount of copper(II) chloride a
Publikováno v:
Tetrahedron. 70:8539-8544
A novel tandem approach has been demonstrated for the direct synthesis of bioactive 3-aroylimidazo[1,2-a]pyridines from chalcones and 2-aminopyridines. The reported tandem reaction is atom-economical and expected to proceed via 1,4-Michael addition f
Publikováno v:
Synlett. 25:2345-2349
An efficient method has been described for the synthesis of vinyl sulfones via hydrosulfonylation of alkynes using sodium arene sulfinates catalyzed by Cu(OTf)2 under microwave irradiation. A variety of vinyl sulfones was obtained in good to excellen
Publikováno v:
Synlett. 24:2751-2757
A simple and highly efficient protocol for the regioselective synthesis of azole-substituted imidazo[1,2-a]pyridines has been developed using a ligand-free, copper-catalyzed Ullmann-type C–N coupling of 2-(2-bromophenyl)imidazo[1,2-a]pyridines with
Publikováno v:
Organic Letters. 15:4304-4307
A ligand-free copper-catalyzed tandem azide-alkyne cycloaddition (CuAAC), Ullmann-type C-N coupling, and intramolecular direct arylation has been described. The designed strategy resulted in the synthesis of a novel trazole-fused azaheterocycle frame