55685-73-9

Upstream product

• 93-58-3 benzoic acid methyl ester 
• 67-56-1 methanol 
• 622-79-7 benzyl azide 
• 100-52-7 benzaldehyde 

Downstream Products

• 67-56-1 methanol 
• 100-52-7 benzaldehyde 
• 93-58-3 benzoic acid methyl ester 
• 65-85-0 benzoic acid 

Relevant academic research and scientific papers

Surface plasmon-enhanced zeolite catalysis under light irradiation and its correlation with molecular polarity of reactants

Enhanced catalytic performance of zeolites via the plasmonic effect of gold nanoparticles has been discovered to be closely correlated with the molecular polarity of reactants. The intensified polarised electrostatic field of Na+ in NaY plays a critical role in stretching the C=O bond of aldehydes to improve the reaction rate.

Highly efficient nitrobenzene and alkyl/aryl azide reduction in stainless steel jars without catalyst addition

The mechanochemical and selective reduction of aryl nitro and aryl/alkyl azide derivatives, with either formate salts or hydrazine, to the corresponding, synthetically useful amines occurs in excellent yields in a planetary ball mill without the addition of a catalyst. This newly developed and solvent-free protocol is efficient, fast and does not require the addition of a metal hydrogenation catalyst as the stainless steel jar itself fulfils that role. The method has been applied to a broad range of compounds and excellent yields have been obtained. The formylation of alkyl amines has been successfully performed, by means of mechanochemical activation, in the presence of ammonium formate alone.

A using a supported metal catalyst method for preparing alcohols (by machine translation)

The invention provides a method for using a supported metal catalyst for producing alcohol, comprising the following steps: carbonyl-containing compounds in the supported metal catalyst under the catalytic action of, and H2 To carry out the reduction reaction, to obtain the alcohol compound; the supported metal catalyst includes: catalyst carrier, loaded on the catalyst carrier and the metal; the metal for the 8th group metal in one or more of; the catalyst carrier is zirconium oxide, lanthanide metal oxide, lanthanide metal oxide-modified zirconia, 4th cycle transition metal oxide modified zirconia, 5th cycle transition metal oxide modified zirconia, alkaline earth metal oxide modified zirconium oxide or aluminum oxide modified zirconia. This invention adopts the above-mentioned particular catalyst for producing alcohol, has high conversion rate, good selectivity, mild reaction conditions, simple device and the like, it has good industrial application prospect. (by machine translation)

PTFE supported gold nanoparticles as photocatalysts for oxidative esterification of aldehydes

Homogeneous, small gold nanoparticles (d = 1.87 nm) have been prepared by photochemical reduction of HAuCl4 in the presence of Irgacure 2959 under high power UV irradiation at 365 nm produced by a LED source. These particles have been deposited on PTFE microbeads (d = 200 μm) and evaluated for the catalysis of the oxidative esterification of aldehydes in the presence of H2O2. Under green light (λ ≈ 530 nm) and repeated addition of H2O2, the catalytic system is accelerated and achieves complete conversions in minutes. Furthermore the catalyst can be recycled ten times consecutively without any activity loss by adding a step for AuNP recycling. The mechanism of the reaction follows a zero rate order, and Hammett free energy relationships for substituted benzaldehydes afforded a positive ρ value (ρ = 2.35) demonstrating that the initial hemiacetalisation equilibrium (ρ = 2.31) is the rate determining step. Kinetics data are in agreement with an Eley-Rideal type mechanism and permits proposing a reaction mechanism.

Ketyl-type radicals from cyclic and acyclic esters are stabilized by SmI2(H2O)n: the role of SmI2(H 2O)n in post-electron transfer steps

Mechanistic details pertaining to the SmI2-H2O- mediated reduction and reductive coupling of 6-membered lactones, the first class of simple unactivated carboxylic acid derivatives that had long been thought to lie outside the reducing range of SmI2, have been elucidated. Our results provide new experimental evidence that water enables the productive electron transfer from Sm(II) by stabilization of the radical anion intermediate rather than by solely promoting the first electron transfer as originally proposed. Notably, these studies suggest that all reactions involving the generation of ketyl-type radicals with SmI2 occur under a unified mechanism based on the thermodynamic control of the second electron transfer step, thus providing a blueprint for the development of a broad range of novel chemoselective transformations via open-shell electron pathways.

Hydrogen peroxide mediated efficient amidation and esterification of aldehydes: Scope and selectivity

An efficient method for the amidation and esterification of aldehydes utilizing hydrogen peroxide as an oxidant has been developed. Cyclic amines and primary alcohols selectively reacted with aromatic aldehydes under mild conditions to yield the corresponding amides and esters.

Electrolytic reduction of carbonyl compounds in methanol-benzene and methanol-dioxane solutions

Specific features of polarographic analysis of aldehydes and ketones in media with low dielectric constant ε (6.4-32.6) were revealed. These are a decrease in the limiting currents caused by the reaction of depolarizers with methanol and dependence of the half-wave potentials on the system composition.

Homochiral Amine Oxides in the Enantioselective Reduction of Ketones

The synthesis of a number of novel homochiral prolinol N-oxide derivatives is described. Several of these were found to catalyse the borane reduction of α-chloroacetophenone to (S)-2-chloro-1-phenylethanol in excellent chemical yield and in 96% ee.

Effects of Metal Ions on the Equilibria of Methanol and Methoxide Ion Addition to Benzaldehydes. Effect of a Poly(oxyethylene) Side Arm

The effect of added alkali (Na, K) and alkaline earth (Sr, Ba) metal bromides on the equilibria for the addition of methanol and methoxide ion to 2-(1,4,7,10,13-pentaoxatetradecyl)benzaldehyde (2) has been studied in methanol at 25 deg C.Whilst alkali cations do not significantly perturb the above equilibria, alkalin-earth metal ions cause a dramatic increase of the equilibrium constant for the addition of methoxide ion (ca. 420 and 150 times in the presence of 0.1 M SrBr2 and BaBr2, respectively).A detailed study of the system afforded equilibrium constants for associations of metal ions with all of the species involved in the process.An analogous set of equilibrium measurements was carried out for comparison purposes with benzaldehyde (1).All of the added salts did not affect both the addition of methanol and methoxide ion to 1, thus indicating that a substantial contribution to the ligand ability of the hemiacetal anion of 2 arises from interaction of metal ions with at least some of the donor sites of the polyether side arm.