نتایج جستجو برای: 3methyl 1 phenyl 2 pyrazoline 5 one
تعداد نتایج: 5601335 فیلتر نتایج به سال:
A new series of pyrazoline derivatives 1b-12b was designed, synthesized and evaluated for antiproliferative activity against three cancer cell lines (HepG-2, Hela and A549). Additionally, NIH/3T3 cell cytotoxicity were tested and the structure activity relationships (SARs) were also determined. Among these new derivatives, the compounds 3-(4-fluorophenyl)-5-(3,4,5-trimethoxythiophenyl)-4,5-dihy...
The reaction between 1-diazopropan-2-one and 1,1-dinitroethylene has been studied using the Molecular Electron Density Theory (MEDT) at the B3LYP/6-31G(d,p) computational level. This reaction comprises two domino processes initialised by a common [3 + 2] cycloaddition (32CA) reaction yielding a 1-pyrazoline, which participates in two competitive reaction channels. Along channel I, 1-pyrazoline ...
have been prepared and applied for the separation of the platinum-group metals, such as Pt, Pd, Ir and Rh, or tervalent lanthanides via solvent extraction.1–4 They are able to extract most metal ions at a lower pH than a related compound, βdiketones. We tried to prepare a novel derivative with an ethoxy group as an electron-releasing substituent, 1-phenyl-3methyl-4-ethoxyacetyl-5-pyrazolone, to...
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