The present research investigates a novel hydrometallurgical process of oxidative dissolution of enargite at ambient conditions in the presence of chlorine dioxide (ClO_2), a very powerful oxidant generated in solution by the reaction between a strong acid (HCl or H_2SO_4) and sodium chlorite ...
negative effect on product formation (Table1, entries 6 and 7). The increase or decrease of the reaction current slightly reduced the product yield (Table1, entries 8 and 9). While a lower ethyl diazoacetate of 1.5 mmol or a lower amount of methanol showed a decrease in the amount of ...
The replacement of hydrogen by a halide in the aromatic ring proceeds predominantly in the para position and is inhibited by nitrobenzene. 3. Reaction schemes were proposed entailing the formation of the benzyl radical and σ -complexes of toluene with a chlorine atom which are converted ...
Oxidative damage can have a devastating effect on the structure and activity of proteins, and may even lead to cell death. The sulfur-containing amino acids cysteine and methionine are particularly susceptible to reactive oxygen species (ROS) and reactive chlorine species (RCS), which can damage ...
Direct C(sp3)–H Cross Coupling Enabled by Catalytic Generation of Chlorine Radicals Here we report the development of a C(sp3)–H cross-coupling platform enabled by the catalytic generation of chlorine radicals by nickel and pho... Benjamin,J.,Shields,... - 《J.am.chem.soc》 被引量: ...
de Boer E, Wever R (1988) The reaction mechanism of the novel vanadium-bromoperoxidase. A steady-state kinetic analysis. J Biol Chem 263:12326–12332 Google Scholar Manoj KM (2006) Chlorinations catalyzed by chloroperoxidase occur via diffusible intermediate(s) and the reaction components play ...
1.To determine the optimumdegradationcondition of Marine Sulfated Polysaccharide 916,taking the yield of molecular as marker,orthogonal test was used to evaluate the influence of 3 factors,including the concentration of H2O2 solution,the reaction time and the concentration of material.以分子量为考查指标...
The Pd(II)-catalyzed oxidative heterodimerization reaction of 2,3-allenamides and 1,2-allenyl ketones was studied. It provides an efficient route for the synthesis of the polysubstituted 4-(furan-3'-yl)-2(5H)-furanimines, which are not readily available from the known methods. Due to the...
It has been established that the formation of C 2-hydrocarbons over CaO-CaCl 2 catalysts involves the participation of atomic chlorine generated by the catalyst surface. It has been suggested that the reaction over Na/CaO and Li/CaO catalysts is initiated by atomic oxygen. The reactions schemes...
pKa is a quantitative measure of the strength of an acid in solution; the lower the pKa value, the stronger the acid. Deprotonation The removal of a proton (a hydrogen cation (H+)) from an acid in an acid–base reaction. The species formed is the conjugate base of that acid. Thiolate...