نتایج جستجو برای: oxidative aromatization
تعداد نتایج: 128973 فیلتر نتایج به سال:
Abstract The effects of various catalysts on the composition volatile pyrolysis products a plastic waste and biomass mixture (1:1) were studied, by pyrolyzing sample using slow fast heating rate. Various zeolite (β-and Y-zeolites, ZSM-5 FCC) nickel-molybdenum catalyst alumina support applied to find suitable for upgrading quality thermal decomposition mixture. A ratio 2:1 was used in experiment...
The reaction of arylidenemalonodinitriles 1 with 1-arylethylidenemalonodinitriles 2 gives rise to sub stituted cyclohexadiene derivatives 3 which then undergo elimination of hydrogen cyanide and afford 3,5-diaryl-2,6-dicyano-aminobenzenes 4. This reac tion is a modification of more general dimerization reaction involving ylidenemalonodinitriles synthe sized from a variety of ketones. These t...
regioselective diels-alder reactions of acyl-1,4-benzoquinones 1 with, severally, isoprene, trans-piperylene,1-acetoxy-1,3-butadiene and 1-methoxy-1,3-butadiene gave the corresponding adducts 2 in high yield. treatment of the adducts 2 with manganese dioxide gave regiospecifically the corresponding 1,4-naphthoquinones 3. in several cases, the adducts of the acetylquinones afforded intermediates...
Background: Pulegone (PGN) is a clear colorless oily liquid, which is widely used in different areas for flavoring foods, drinks, and dental products. There are several reports indicating that the metabolites of the PGN affect cytochrome-P450 family expression and activities. The cytochromes-P450 (cyp19) are involved in Leydig Cells aromatization. Therefore, present study was performed in order...
V2O5/SiO2 nanoparticles was prepared via an one-pot sol gel method from vanadyl- acetylacetonate and tetraethylorthosilicate in refluxing MeOH, followed by calcination at 700 °C for 2 hours. The resultant nanoparticles was characterized by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), TGA and FTIR techniques. Rapid and efficient ar...
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