منابع مشابه
EPR and voltammetric evidence for the reversible dimerization of anion radicals of aromatic meta-substituted diesters and dithioic S,S9-diesters
The electrochemical behaviour of some alkyl meta-substituted (R = Me or Pr) diesters and dithioic S,S9-diesters of pyridine and benzene (trivial names dipicolinate and isophthalate esters) have been studied by cyclic voltammetry (scan rates = 0.1–50 V s) in acetonitrile with 0.1 M tetrabutylammonium hexafluorophosphate as the supporting electrolyte. The cyclic voltammetry data can be interprete...
متن کاملA new route to N-aromatic heterocycles from the hydrogenation of diesters in the presence of anilines.
The hydrogenation of dicarboxylic acids and their esters in the presence of anilines provides a new synthesis of heterocycles. [Ru(acac)3] and 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos) gave good to excellent yields of the cyclic amines at 220 °C. When aqueous ammonia was used with dimethyl 1,6-hexadienoic acid, ε-caprolactam was obtained in good yield. A side reaction involving alkyla...
متن کاملThe Presence of Polycyclic Aromatic Hydrocarbons (pah) in Oil Obtained at Pyrolysis of Jordan Oil Shale
The presence of polycyclic aromatic hydrocarbons (PAH) in the oil obtained at pyrolysis of Jordan oil shale in a fluidised-bed reactor in the atmosphere of nitrogen and nitrogen/steam has been investigated. The final pyrolysis temperature was 520 °C, at which the maximum oil yield was established. The derived oils were fractionated into chemical classes using mini-column liquid chromatography f...
متن کاملThermal reactions of aromatic hydrocarbons in the pyrolysis of ethane and propane
The influence of aromatics on the pyrolysis of ethane and propane was studied using benzene, toluene, α-methylnaphthalene and anthracene as model compounds. The experiments were performed in a tubular flow reactor at ordinary pressure, temperatures of 700-850°C, residence times between 0.1-1s and low concentration of aromatics (1-6%mole). Aromatic hydrocarbons inhibited the pyrolysis rate of et...
متن کاملTailoring ZSM-5 Zeolites for the Fast Pyrolysis of Biomass to Aromatic Hydrocarbons.
The production of aromatic hydrocarbons from cellulose by zeolite-catalyzed fast pyrolysis involves a complex reaction network sensitive to the zeolite structure, crystallinity, elemental composition, porosity, and acidity. The interplay of these parameters under the reaction conditions represents a major roadblock that has hampered significant improvement in catalyst design for over a decade. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Thermal Analysis and Calorimetry
سال: 2014
ISSN: 1388-6150,1588-2926
DOI: 10.1007/s10973-014-4021-y