This product is a nationally controlled contraband or patented product, and the Lookchem platform doesn't provide relevant sales information.
75-52-5Relevant articles and documents
AN ESR STUDY OF THE PHOTOREACTION OF NITROALKANES WITH TETRAPHENYLBIPHOSPHINE AND TETRAETHYLPYROPHOSPHITE
Alberti, Angelo,Hudson, Andrew,Pedulli, Gian Franco
, p. 4955 - 4958 (1984)
Some paramagnetic species formed in the photoreactions of nitroalkanes with P-compounds have been characterized by ESR.The observed radicals are mostly nitroxides whose structures are consistent with the trapping of P-centred radicals by intermediate nitroso compounds.
Kinetics of the CH3O2 + NO Reaction: Temperature Dependence of the Overall Rate Constant and an Improved Upper Limit for the CH3ONO2 Branching Channel
Scholtens, Kurtis W.,Messer, Banjamin M.,Cappa, Christopher D.,Elrod, Matthew J.
, p. 4378 - 4384 (1999)
The overall rate constant and an upper limit for the CH3ONO2 product channel for the CH3O2 + NO reaction have been measured using the turbulent flow technique with high-pressure chemical ionization mass spectrometry for the detection of reactants and products. At room temperature and 100 Torr pressure, the rate constant (and the two standard deviation error limit) was determined to be (7.8 +/- 2.2)E-12 cm3 molecule-1 s-1. The temperature dependence of the rate constant was investigated between 295 and 203 K at pressures of either 100 or 200 Torr, and the data was fit to the following Arrhenius expression: (9.2+6.0-3.9E-13) exp cm3 molecule-1 s-1. Although the room-temperature rate constant value agrees well with the current recommendation for atmospheric modeling, our values for the rate constant at the lowest temperatures accessed in this study (203 K) are about 50 percent higher than the same recommendation. No CH3-ONO2 product was detected from the CH3O2 + NO reaction (using direct CH3ONO2 detection methods for the first time), but an improved upper limit of 0.03 (at 295 K and 100 torr) for this branching channel was determined.
Deprotonation of organic compounds bearing acid protons promoted by metal amido complexes with chiral diamine ligands leading to new organometallic compounds
Murata, Kunihiko,Konishi, Hirokazu,Ito, Masato,Ikariya, Takao
, p. 253 - 255 (2002)
Well-defined 16-electron metal amido complexes bearing chiral Ts-diamine ligands readily react with nitromethane, acetone, or phenylacetylene to give new organometallic compounds in almost quantitative yields. For example, an Ir amido complex, Cp*Ir[(R,R)Tscydn], reacts with nitromethane at room temperature to give quantitatively a nitromethyl Ir complex, Cp*Ir(CH2NO2)[(R,R)-Tscydn], as a single diastereomer. The isolable organometallic compounds with chiral amine ligands are relevant to active catalysts for asymmetric C-C bond formation.
Synthesis of nitromethane from acetic acid by radiation-induced nitration in aqueous solution
Ershov, Boris G.,Gordeev, Andrei V.,Bykov, Gennady L.,Zubkov, Andrei A.,Kosareva, Inessa M.
, p. 289 - 290 (2007)
The γ-irradiation of solutions containing acetic acid, nitric acid and/or their salts produces nitromethane.
Phase Effects on Conformational Equilibria. Nuclear Magnetic Resonance Studies of Methyl Nitrite
Chauvel, J. Paul,True, Nancy S.
, p. 1622 - 1625 (1983)
Gas-phase 1H NMR spectra of methyl nitrite are consistent with the following thermodynamic parameters for the syn anti conformational equilibrium: ΔHanti-syn, 998 (50) cal mol-1; ΔGanti-syn, 520 (5) cal mol-1 (at 205 K); and ΔSanti-syn 2.3(3) eu.These results agree well with values obtained from a statistical mechanical calculation.The large entropy difference between the conformers is due to a very low methyl top internal rotation barrier for the anti conformer.Neat liquid methyl nitrite and 1 percent solutions of methyl nitrite is carbon disulfide, acetone-d6, and n-pentane all produce temperature-dependent NMR spectra which are consistent with the following ranges of thermodynamic parameters: ΔHanti-syn, 803-866 cal mol-1; ΔGanti-syn, 440-460 cal mol-1 (at 205 K); ΔSanti-syn, 1.8-2.0 eu, demonstrating that in liquids the anti/syn partition function ratio is smaller and the equilibrium constant between the conformers is closer to 1.
Using Postsynthetic X-Type Ligand Exchange to Enhance CO2Adsorption in Metal-Organic Frameworks with Kuratowski-Type Building Units
Bien, Caitlin E.,Cai, Zhongzheng,Wade, Casey R.
, p. 11784 - 11794 (2021/07/26)
Postsynthetic modification methods have emerged as indispensable tools for tuning the properties and reactivity of metal-organic frameworks (MOFs). In particular, postsynthetic X-type ligand exchange (PXLE) at metal building units has gained increasing attention as a means of immobilizing guest species, modulating the reactivity of framework metal ions, and introducing new functional groups. The reaction of a Zn-OH functionalized analogue of CFA-1 (1-OH, Zn(ZnOH)4(bibta)3, where bibta2- = 5,5′-bibenzotriazolate) with organic substrates containing mildly acidic E-H groups (E = C, O, N) results in the formation of Zn-E species and water as a byproduct. This Br?nsted acid-base PXLE reaction is compatible with substrates with pKa(DMSO) values as high as 30 and offers a rapid and convenient means of introducing new functional groups at Kuratwoski-type metal nodes. Gas adsorption and diffuse reflectance infrared Fourier transform spectroscopy experiments reveal that the anilide-exchanged MOFs 1-NHPh0.9 and 1-NHPh2.5 exhibit enhanced low-pressure CO2 adsorption compared to 1-OH as a result of a Zn-NHPh + CO2 ? Zn-O2CNHPh chemisorption mechanism. The MFU-4l analogue 2-NHPh ([Zn5(OH)2.1(NHPh)1.9(btdd)3], where btdd2- = bis(1,2,3-triazolo)dibenzodioxin), shows a similar improvement in CO2 adsorption in comparison to the parent MOF containing only Zn-OH groups.
Transesterification of Methyl 2-Nitroacetate to Superior Esters
Corsi, Massimo,Machetti, Fabrizio,Magnolfi, Stefano
, (2020/03/19)
Methyl 2-nitroacetate and methyl acetoacetate have in common the presence of an electron-withdrawing substituent geminal to the methyl ester function but the well-known ease of thermal transesterification of methyl acetoacetate has not been found in methyl 2-nitroacetate. The latter gives uncatalysed thermal transesterification only in low yield and at a temperature higher than that of methyl acetoacetate. Comparative experiments provided further insight into the reactions; protic and Lewis acid catalysts promoted the smooth exchange of the alkanoyl groups, observing first the transesterification of methyl 2-nitroacetate with ethanol, already proved difficult to proceed. Dibutyltin(IV)oxide (DBTO) catalyst offered the spur to set up a convenient synthetic methodology from methyl 2-nitroacetate, encompassing higher molecular weight and functionalised alcohols: aliphatic, unsaturated and oxidation sensitive species were suited to react, delivering the corresponding 2-nitroacetate esters in good yields in most cases.
Accessing the Nitromethane (CH3NO2) Potential Energy Surface in Methanol (CH3OH)-Nitrogen Monoxide (NO) Ices Exposed to Ionizing Radiation: An FTIR and PI-ReTOF-MS Investigation
Góbi, Sándor,Crandall, Parker B.,Maksyutenko, Pavlo,F?rstel, Marko,Kaiser, Ralf I.
, p. 2329 - 2343 (2018/03/21)
(D3-)Methanol-nitrogen monoxide (CH3OH/CD3OH-NO) ices were exposed to ionizing radiation to facilitate the eventual determination of the CH3NO2 potential energy surface (PES) in the condensed phase. R
Preparation method of nitromethane and application of poly(4-vinylpyridine)
-
Paragraph 0039-0063, (2019/01/14)
The invention relates to a preparation method of nitromethane, and relates to the field of organic synthesis. The preparation method comprises the following step of mixing dimethyl sulfate, nitrite, alkali and poly(4-vinylpyridine) to react. The preparation method has the advantages that by adding the poly(4-vinylpyridine), the amount of harmful gas in the production process is reduced, and the yield rate and purity of the product are greatly improved; the poly(4-vinylpyridine) is easy to separate, and the poly(4-vinylpyridine) is suitable for the recycling of byproduct (sulfate); the conditions are mild, the operation is simple, and the production method is suitable for industrialized large-scale production. The application of the poly(4-vinylpyridine) is characterized in that the poly(4-vinylpyridine) is applied into the synthesis reaction of the nitromethane, the yield rate and purity of the nitromethane are improved, and the influence to the recycling of the byproduct is avoided.
A reactor for continuous production of nitromethane
-
Paragraph 0029-0038, (2018/07/30)
The utility model provides a for continuous production of nitromethane in the reactor, which comprises a series of n reaction zone, wherein the reaction region comprises a: housing, is arranged in the casing of the mixing chamber and the mixing chamber is connected to the reaction tube, the shell is provided with a mixing chamber connected to the dimethyl sulfate sodium nitrite inlet and inlet, with said reaction tube connected to the outlet of the reaction product, and heat transfer medium inlet and outlet; the reaction zone b to reaction zone n the reaction areas of the respective includes: shell, is arranged in the casing of the mixing chamber and the mixing chamber is connected to the reaction tube, the shell is provided with a connected on the mixing chamber of the reaction product of a reaction zone inlet and dimethyl sulfate inlet, with said reaction tube connected to the outlet of the reaction product, and heat transfer medium inlet and outlet; in addition to the last reaction zone other than the reaction zone of the reaction product outlet and the next reaction zone of the product inlet connected by pipelines.