F:Flammable;
75-29-6Relevant articles and documents
Reaction of chloride ion with isopropyl bromide at atmospheric pressure by ion mobility spectrometry
Sahlstrom,Knighton,Grimsrud
, p. 1501 - 1508 (1997)
The SN2 nucleophilic displacement reaction of chloride ion with isopropyl bromide (i-PrBr) has been studied in nitrogen buffer gas at a pressure of 640 Torr over the temperature range 20-175°C by ion mobility spectrometry (IMS). It is concluded that, under these conditions of relatively high buffer gas pressure, this nucleophilic displacement reaction occurs primarily by the distinctly two-step mechanism Cl- + i-PrBr ? Cl-(i-PrBr) → Br- + i-PrCl in which a thermal energy ion complex, Cl-(i-PrBr), is maintained in a state of chemical equilibrium with the reactants. An SN2 displacement reaction then occurs within the thermal energy cluster ion by its unimolecular conversion to products. Equilibrium constants, K1, and rate constants, k1, for Cl- + i-PrBr ? Cl-(i-PrBr) and Cl-(i-PrBr) → Br- + i-PrCl, respectively, are determined from the IMS spectra as a function of temperature. In addition, second-order clustering to form the ion complex Cl-(i-PrBr)2 is also observed, and equilibrium constants, K2, for this process are also obtained from IMS spectra. By these measurements, the major features of the potential energy surface for this reaction are characterized and place its SN2 transition state at 1.6 kcal mol-1 above the energy of the reactants.
Nicolet, B. H.,McDaniel Potts, W.
, p. 212 - 216 (1928)
Reactive and organosoluble SnO2 nanoparticles by a surfactant-free non-hydrolytic sol-gel route
Aboulaich, Abdelhay,Boury, Bruno,Mutin, P. Hubert
, p. 3644 - 3649 (2011)
Reactive SnO2 nanoparticles have been successfully prepared by a simple non-hydrolytic sol-gel synthesis in CH2Cl2 t 110 °C by using SnCl4 as a precursor and diisopropyl ether iPr 2O) as an oxygen donor. The SnO2 nanocrystals, with a iameter of about 4 nm, formed stable sols in organic aprotic olvents in the absence of any surfactant or coordinating gent. The lack of aggregation has been attributed to the resence of Cl and OiPr surface groups instead of OH roups. These surface groups render the nanoparticles reactive towards hydroxylated surfaces, as shown by their reaction with an oxidized silicon wafer; the nanoparticles bind niformly across the wafer to form a monolayer.
METHOD FOR SYNTHESIS OF 2-CHLOROPROPANE
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Paragraph 0043; 0044; 0045; 0046; 0047; 0055, (2019/02/09)
PROBLEM TO BE SOLVED: To provide a method for the synthesis of 2-chloropropane that can prevent the deterioration of propylene conversion rates for a long time. SOLUTION: A method for the synthesis of 2-chloropropane includes synthesizing 2-chloropropane by reacting a source gas containing propylene and hydrochloric acid in a gas phase in the presence of a catalyst. In the method, a moisture content of the source gas is adjusted to 400 ppm-1500 ppm for the reaction. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2019,JPOandINPIT
Preparation method of ametryn
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Paragraph 0038; 0039, (2018/09/21)
The invention provides a method for preparing ametryn through a green salt-free technology. The method comprises the following step: under the action of a catalyst, enabling atrazine and methanethiolto react in isopropyl alcohol to prepare the ametryn. According to the method provided by the invention, the production and utilization of sodium thiomethoxide with an offensive odor are avoided; meanwhile, a catalyst with the offensive odor, i.e., trimethylamine hydrochloride, is not used, and the environment-friendly catalyst is used, so that the odor can be avoided radically and the quality ofa product and the environment of a production site are extremely improved; meanwhile, industrial salt is not generated; the method is environmentally friendly and the environment protection cost is greatly reduced.
Allowing the direct interaction of: N -aryl α-diimines with a high valent metal chloride: One-pot WCl6-promoted formation of quinoxalinium salts
Bartalucci, Niccolò,Bortoluzzi, Marco,Funaioli, Tiziana,Marchetti, Fabio,Pampaloni, Guido,Zacchini, Stefano
supporting information, p. 12780 - 12784 (2017/10/13)
The full potential of a high valent metal chloride as both a chlorinating and an oxidative agent was explored by allowing WCl6 to react with N-(2,6-diisopropylphenyl) α-diimines, in CH2Cl2 at room temperature. These α-diimines underwent unprecedented conversion to quinoxalinium cations via intramolecular C-N coupling.
