The Journal of Physical Chemistry AChen Litao,Xiao Heming,Xiao Jijun,et a1.DFT study on nitration mechanism of benzene with nitronium ion[,J].J Phys Chem A,2003,(107):11440～11444L. Chen, H. Xiao, J. Xiao and X. Gong, DFT Study on nitration mechanism of benzene with nitronium ion,...
Here we will try to understand the mechanism of the reaction. This reaction is carried out in the presence of a Lewis acid catalyst. Lewis acid is nothing but an electron pair acceptor and the electrons are essentially nonbonding ones. 2. Nitration of Benzene In the reaction nitration of be...
benzene vapour phase nitrationKyodai nitration processSummary This chapter contains sections titled: Introduction Reaction mechanism Nitration of aromatic compounds using zeolites as catalysts Conclusions Referencesdoi:10.1002/0470094214.ch5DerouaneEric G....
The dinitration of 1,4-dialkoxybenzene derivatives also exhibits surprising regioselectivity that has hitherto been left unexplained. Herein, we report a detailed DFT analysis of the regioselective dinitration of both 1,2- and 1,4-dimethoxybenzene. These results show that the reaction mechanism ...
With 1,2,4-trichloro-5-nitrobenzene there is evidence for the intrusion of an extra mechanism for reaction in highly concentrated solutions of dinitrogen pentaoxide. Other substrates studied were 1,2-dichloro-4-nitrobenzene, 1,3-dimethyl-4,6-dinitrobenzene, 2-nitrobenzoic acid, 3-nitrobenzoic ...
Mononitration of aromatics was performed in a two-phase system using phase-transfer catalyst. The most advantageous conditions for the nitration were determined (temperature, reaction time, the type and amount of phase transfer catalyst, nitrification strength of the nitro-sulfuric acid). From the re...
摘要: aromatic substitution. xxxiv. differing nature and selectivity of the nitration of nitro(dinitro)benzene and -toluenes from that of benzene and toluene-芳香取代. XXXIV.从苯和甲苯的不同性质和硝基(二硝基)苯和甲苯的硝化的选择性-知来论文发表中心...
benzenebecomesbenzoate.Then,theotherpartoftheester(maybeconsideredtheetherportion)isputinfrontofthebenzoate.Sincetheproductisamethylester,themethylcomesbeforethebenzoate.Methyl3-nitrobenzoatemp78oCM.W.181.15Methylbenzoatebp198-199oCM.W.136.15d1.09HNO3,H2SO4CO2CH3CO2CH3NO2Figure1.Theoverallreactionforthe...
KINETICS AND MECHANISM OF NITRATION OF HALOGENOBENZENES R Coombes,D Crout,J Hoggett,... 被引量: 16发表: 1970年 Quinoline formation via a modified Combes reaction: examination of kinetics, substituent effects, and mechanistic pathways This is the first reported investigation of the Combes ...
Process optimization,thermal hazard evaluation and reaction mechanism of m-xylene nitration using HNO3-AC2O as nitrating reagent Nitro-m-xylenes(NMX)was synthesized in semi-batch mode via m-xylene nitration using nitric acid-acetic anhydride(HNO3-AC2O)as nitrating reagent in this wor... H Yao,G ...