Polyaniline coated on celite, a heterogeneous support for palladium: applications in catalytic Suzuki and one-pot Suzuki–aldol reactions
作者:Heta A. Patel、Arun L. Patel、Ashutosh V. Bedekar
DOI:10.1039/c6nj02402e
日期:——
Particles of celite were coated with polyaniline, characterized and used as a support for heterogenization of palladium metal ions. The prepared heterogeneous palladium catalysts were screened for Suzuki–Miyaura and one-pot Suzuki–aldol reactions with high conversions. The process of heterogenization on celite reduces the PANI consumption ten-fold when anchoring palladium ions onto the support. The
Synthesis, Luminescent Properties, and Antibacterial Activity of New Pyrazoline and Pyrimidine Derivatives of (2E)-1-Biphenyl-3-arylprop-2-en-1-ones
作者:A. U. Isakhanyan、N. Z. Hakobyan、Z. A. Hovasyan、G. S. Grigoryan、R. P. Mkhitaryan、H. G. Aracelyan、A. S. Safaryan、R. E. Muradyan、Н. A. Panosyan、A. A. Harutyunyan
DOI:10.1134/s1070363223090037
日期:2023.9
Abstract Substituted prop-2-en-1-ones were obtained by the condensation reaction of 1-biphenyl-4-yl-ethanone with aromaticaldehydes in the presence of sodiumhydroxide in an aqueous ethanol solution. Subsequent cyclization of the latter with hydrazine hydrate, phenylhydrazine, and thiosemicarbazide in an acidic medium leads to the corresponding pyrazolines. The reaction of amidine hydrochlorides with
Biological and structure-activity evaluation of chalcone derivatives against bacteria and fungi
作者:Wender A. Silva、Carlos Kleber Z. Andrade、Hamilton B. Napolitano、Ivo Vencato、Carlito Lariucci、Miriam. R. C. de Castro、Ademir J. Camargo
DOI:10.1590/s0103-50532013000100018
日期:——
The present work describes the antibacterial and antifungal activities of several chalcones obtained by a straight Claisen-Schmidt aldol condensation determined by the minimal inhibitory concentration against different microorganisms (Gram-positive and Gram-negative bacteria and fungi). Solid state crystal structures of seven chalcones were determined by X-ray diffraction (XRD) analysis. Chemometric studies were carried out in order to identify a potential structure-activity relationship.
Studies on cycloimmonium ylides. Synthesis of some 2,4,6-triaryl-substituted pyridines via isoquinolinium ylides
作者:R. S. Tewari、A. K. Dubey
DOI:10.1021/je60084a032
日期:1980.1
Studies on cycloimmonium ylides: synthesis of some new 2,4,6-trisubstituted pyridines. 2
作者:Ram S. Tewari、Suresh C. Chaturvedi、Dinesh K. Nagpal