Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Pranjal P. Bora"'
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
A completely green and improved method for the synthesis of 6-amino-4-aryl-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-carbonitriles by a four-component reaction of a mixture of ethyl acetoacetate, hydrazine hydrate, aldehyde, and malononitrile in boil
Externí odkaz:
https://doaj.org/article/9c03101a362746118dae53e433b516bd
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
Amberlyst A21 catalyzed one-pot three-component coupling of aldehyde and malononitrile with active methylene compounds such as acetylacetone and ethyl acetoacetate for the synthesis of pharmaceutically important polyfunctionalized 4H-pyrans has been
Externí odkaz:
https://doaj.org/article/00660c9d27e44beb90be352aee19fa46
Autor:
Deborah Ogulu, Pranjal P. Bora, Manisha Bihani, Sudripet Sharma, Tharique N. Ansari, Andrew J. Wilson, Jacek B. Jasinski, Fabrice Gallou, Sachin Handa
Publikováno v:
ACS applied materialsinterfaces. 14(5)
Phosphine ligand-free bimetallic nanoparticles (NPs) composed of Ni(0)Pd(0) catalyze highly selective 1,4-reductions of enones, enamides, enenitriles, and ketoamides under aqueous micellar conditions. A minimal amount of Pd (Ni/Pd = 25:1) is needed t
Autor:
Jacek B. Jasinski, Pranjal P. Bora, Sachin Handa, Fabrice Gallou, Scott V. Plummer, Maarten Nachtegaal, Manisha Bihani
Publikováno v:
ACS Catalysis. 9:7520-7526
Both Ni(0) complexes and nanoparticles (NPs) are unstable in water, which poses a significant hindrance to their application in aqueous synthetic catalysis. To overcome these barriers, ligated Ni(0...
Autor:
Pranjal P. Bora, John Reilly, Bo Jin, Ye Wang, Sachin Handa, Xiaohua Zhang, Fabrice Gallou, Bruce H. Lipshutz
Publikováno v:
ACS Catalysis. 9:2423-2431
Nanoparticles derived from FeCl3 containing the ligand XPhos and only 500 ppm Pd effect Sonogashira couplings in water between rt and 45 °C. The entire aqueous reaction medium can be easily recycled using an “in-flask” extraction. Several tandem
Publikováno v:
Catalysis Letters. 148:1315-1323
For the first time, CuAAC reaction catalyzed by copper(II) nitrate and counter ion effect of various copper(II) salts are reported. Use of a novel copper complex 1, derived from the reaction of copper(II) nitrate with 5-acetyl-2-amino-6-methyl-4-(pyr
Publikováno v:
Canadian Journal of Chemistry. 95:1261-1266
Base-catalyzed Michael addition of nitroalkane to conjugated nitroalkene suffers serious practical difficulties due to the formation of oligomeric byproduct. Given its importance for synthesis of pharmacologically relevant organic compounds, a scalab
Publikováno v:
Chinese Journal of Chemistry. 36:20-24
A highly regio-, diastereo- and enantioselective addition of 2-acyl imidazoles or 2-acyl pyridines with allenes promoted by Rh/Lewis acid synergistically catalytic system is described. This atom economic approach leads to the formation of the branche
Publikováno v:
Tetrahedron Letters. 58:1102-1106
An efficient and catalytic α-chlorination of 2-acyl imidazoles with readily available tosyl chloride catalyzed by an octahedral iridium complex under mild condition was reported. A range of 2-acyl imidazoles were converted to their corresponding α-
Publikováno v:
ChemSusChem. 12(13)
Highly selective direct monofluorination of indoles and arenes was developed through an approach that allows site-specific solubility of substrate and fluorine source in the micelle. This approach was highly selective for a broad range of substrates