Benzonitrile is less nucleophilically activated than benzene due to the presence of the electron-withdrawing CN group the meta position is the more favorable reaction path of this EAS reaction. The analysis of ELF and AIM demonstrates that binding of cyanide group to the aromatics ring (C-C ...
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2.The vapor phase nitration reaction of benzene and chlorobenzene with NO2 on HZSM-5 catalyst and modified HZSM zeolite was studied, and the influence of temperatare, NO2/aromatic molar ratio, space velocity, water content, SiO2/Al2O3 ratiO and pretreatment temperature of HZSM-5 zeolite were...
Because of the increased nitration the ERK pathway is impaired and the gastric mucosal healing is impaired. 由于ERK途径硝化增加受损,导致胃粘膜修复受损。 ESR spectrum show that reduced of heteropoly acid was occurred in vapor-phase nitration reaction of benzene. ESR谱表明:杂多酸催化剂的钨在苯气...
Nitration of benzene is the reaction of benzene with concentrated Nitric acid. Around 323-333K temperature is maintained during the reaction. The...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Nitration of benzene containing 91.5 mole% monodeuterobenzene gave nitrobenzene containing 74.9 mole 70 monodeuteronitrobenzene and m-dinitrobenzene containing 60.9. mole% monodeutero-m-dinitrobenzene. Since these are the concentrations expected if there is no hydrogen isotope effect, these studies co...
Tianji Chemicals (Lucheng, China) operates two MNB plants on site, both equipped with our patented technology for MNB reaction and purification, and incorporating the first implementation in China of specialised effluent pre-treatment technology. ...
Dinitrodialkoxybenzene derivatives are important precursors for Schiff base macrocycles and a variety of other molecules. During our investigations, we have found that the dinitration reaction of 1,2-dialkoxybenzenes proceeds with unusual regioselectivity, giving exclusively the desired 1,2-dialkoxy-4...
The gas phase reaction of the benzenes (I) with methyl nitrate (explosive) is characterized as a typical, well-behaved electrophilic substitution of modera... M Attina,F Cacace,M Yanez - 《Cheminform》 被引量: 127发表: 1987年 Substrate and positional selectivity of the gas-phase nitration ...
4 (a)(i)When benzene undergoes nitration a nitro group substitutes at a carbon atom.State the shape(geometry)around the substituted carbon atom. in the benzene molecule, .. in the intermediate complex,. in the nitrobenzene product.[2](ii) Naphthalene, C1oH8, is an arene hydrocarbon....