نتایج جستجو برای: nitromethane

تعداد نتایج: 403  

2000
J. J. Lee J. Jiang K. H. Choong J.H.S. Lee

In this work, the critical diameter for detonation was measured for Nitromethane (NM) sensitized with two different amines: Diethylenetriamine (DETA) and Triethylamine (TEA). The critical diameter in glass and polyvinylchloride tubes is found to decrease rapidly as the amount of sensitizer is increased, then increase past a critical amount of sensitizer. Thus the critical diameter reaches a min...

2003
V. I. Anikeev A. Yermakova M. Goto

The kinetics of nitromethane, nitroethane and 1-nitropropane decomposition and oxidation in supercritical water near the critical point has been studied in a flow reactor. The reaction rate constants have been calculated on the assumption of the first order reaction. The pressure varied over a wide range produced strong effect on the rate of the nitrocompounds decomposition in supercritical wat...

Journal: :Chemical communications 2014
Stuart M Leckie Gavin J Harkness Matthew L Clarke

As part of a programme aimed at exploiting lignin as a chemical feedstock for less oxygenated fine chemicals, several catalytic C-C bond forming reactions utilising guaiacol imidazole sulfonate are demonstrated. These include the cross-coupling of a Grignard, a non-toxic cyanide source, a benzoxazole, and nitromethane. A modified Meyers reaction is used to accomplish a second constructive deoxy...

Journal: :Chemosphere 2016
Xiaofeng Wang Beihai Zhou Hongwei Yang Xiaomao Wang Yuefeng Xie

Nitro-based compounds are the direct precursors of trichloronitromethane during chlorination disinfection. Two nitro-based pharmaceuticals ranitidine and nizatidine were selected as model compounds to assess the effect of oxidation on the removal of nitro-based pharmaceuticals, as well as the reduction of their trichloronitromethane formation potentials (TCNMFPs). The four oxidants were ozone (...

Journal: :Trends in chemistry 2021

The preparation of (hetero)arylamines has been significantly advanced by developments in transition metal-catalyzed Csp2–N coupling (e.g., Buchwald–Hartwig, Chan–Lam, and Ullmann couplings). As a complement to these strategies, our group recently demonstrated the reductive arylboronic acids nitro compounds, initially nitro(hetero)arenes more nitromethane, an organophosphorus-catalyzed method op...

Journal: :Catalysts 2022

Granulicella tundricola hydroxynitrile lyase (GtHNL) catalyses the synthesis of chiral (R)-cyanohydrins and (R)-β-nitro alcohols. The triple variant GtHNL-A40H/V42T/Q110H (GtHNL-3V) was immobilised on Celite R-633 used in monophasic MTBE saturated with 100 mM KPi buffer pH 7 for (R)-2-nitro-1-phenylethanol (NPE) batch continuous flow systems. Nitromethane as a nucleophile. A total 82% (R)-NPE e...

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