Category: 579-43-1

Wang, Yunwei;Ren, Pengju;Gu, Xianmo;Wen, Xiaodong;Wang, Yingyong;Guo, Xiangyun;Waclawik, Eric R.;Zhu, Huaiyong;Zheng, Zhanfeng published 《Probing the mechanism of benzaldehyde reduction to chiral hydrobenzoin on the CNT surface under near-UV light irradiation》 in 2016. The article was appeared in 《Green Chemistry》. They have made some progress in their research.Quality Control of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article mentions the following:

Metal-free CNTs exhibit high activity (conversion rate 99.6%, 6 h) towards the synthesis of chiral hydrobenzoin from benzaldehyde under near-UV light irradiation (320-400 nm). The CNT structure before and after the reaction, the interaction between the mol. and the CNT surface, the intermediate products, the substitution effect and the influence of light on the reaction were examined using various techniques. A photoexcited conduction electron transfer (PECET) mechanism for the photocatalytic reduction using CNTs was proposed. This finding provides a green photocatalytic route for the production of hydrobenzoin and highlights a potential photocatalytic application of CNTs. The experimental procedure involved many compounds, such as rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Quality Control of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Amsallem, Dana;Bedi, Anjan;Tassinari, Francesco;Gidron, Ori published 《Relation between Morphology and Chiroptical Properties in Chiral Conducting Polymer Films: A Case Study in Chiral PEDOT》 in 2020. The article was appeared in 《Macromolecules (Washington, DC, United States)》. They have made some progress in their research.Category: alcohols-buliding-blocks The article mentions the following:

The electronic properties of conducting polymers are influenced by their micro- and macrostructural orders, which can be tailored by substituent modification. However, while the effect of substituents on conducting polymers is extensively investigated, chiral substituents are far less studied. Furthermore, many chiral conducting polymers have regioirregular structures, which result in polymer films with inferior properties. In this work, we apply electronic CD (ECD) spectroscopy to study the morphol. changes to the chiral polymers under different polymerization conditions. For this purpose, we investigated 3,4-ethylenedioxythiophene (EDOT) derivatives having two stereogenic centers on each monomer and bearing Me or Ph side groups (dimethyl-EDOT and diphenyl-EDOT, resp.). Polymerizing the enantiomerically pure monomers produces regioregular and stereoregular dimethyl-PEDOT and diphenyl-PEDOT, resp. The effect of the electrolyte and solvent on polymer film morphol. was studied using SEM and ECD, showing a correlation between the polymer’s morphol. and the chiroptical properties of its films. We found that, for diphenyl-PEDOT, the combination of perchlorate anion electrolyte and acetonitrile solvent resulted in a unique morphol. characterized by significant intermol. interactions. These interactions were clearly observable in the ECD spectra in the form of exciton couplings, whose presence was supported by TD-DFT calculations A small enantiomeric excess was sufficient to induce very intense ECD signals, demonstrating chiral amplification in electropolymerized films. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas: 579-43-1 Category: alcohols-buliding-blocks) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhou, Feng;Hu, Xiaoying;Gao, Ming;Cheng, Tanyu;Liu, Guohua published 《An imidazolium-modified chiral rhodium/diamine-functionalized periodic mesoporous organosilica for asymmetric transfer hydrogenation of α-haloketones and benzils in aqueous medium》. The research results were published in《Green Chemistry》 in 2016.Application In Synthesis of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

The use of a hydrophobic, imidazolium-functionalized periodic mesoporous organosilica for immobilization of chiral organometallic complexes as a heterogeneous catalyst is highly desirable as this catalyst can greatly promote an aqueous organic transformation due to its hydrophobic function and phase-transfer feature in an aqueous medium. Herein, by utilizing a three-component co-condensation strategy, we conveniently incorporate 1,2-bis(triethoxysilyl)ethane, (R,R)-4-((trimethoxysilyl)ethyl)phenylsulfonyl-1,2-diphenylethylene-diamine and 1,3-bis(3-(triethoxysilyl)propyl)-1H-imidazol-3-ium iodide within its silicate network, which is coordinated with (Cp*RhCl₂)₂, leading to an imidazolium-modified chiral rhodium/diamine-functionalized periodic mesoporous organosilica. A solid-state carbon spectrum discloses its well-defined chiral rhodium/diamine active species, and its X-ray diffraction; nitrogen adsorption-desorption measurement and transmission electron microscopy images reveal its ordered dimensional-hexagonal mesostructure. As a bifunctional heterogeneous catalyst, this periodic mesoporous organosilica significantly boosts asym. transfer hydrogenation of α-haloketones and benzils in water, where the hydrophobic periodic mesoporous organosilica, phase-transfer-featured imidazolium-functionality, and the confined chiral organorhodium catalytic nature are responsible for its catalytic performance. Furthermore, the catalyst can be recovered and recycled seven times without the loss of its catalytic activity, making it an attractive heterogeneous catalyst for asym. transfer hydrogenation in an environmentally friendly manner. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Application In Synthesis of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol《Aerobic oxidation of alcohols with air catalyzed by decacarbonyldimanganese》 was published in 2019. The authors were Meng, Shan-Shui;Lin, Li-Rong;Luo, Xiang;Lv, Hao-Jun;Zhao, Jun-Ling;Chan, Albert S. C., and the article was included in《Green Chemistry》. The author mentioned the following in the article:

The oxidation of alcs. to carbonyl compounds using air as the terminal oxidant is highly desirable. As described in previous reports, the abstraction of α-H of the alc. is the most important step, and it typically requires not only a metal catalyst but also complex ligands, co-catalysts and bases. Herein, we report a practical and efficient method for the oxidation of primary alcs., secondary alcs., 1,2-diols, 1,2-amino alcs., and other α-functionalized alcs. using a com. available catalyst, Mn₂(CO)₁₀, and no additives. Preliminary mechanistic studies indicated that an alkoxyl radical intermediate existed in our system, and a plausible mechanism consistent with the exptl. results and literature was proposed.rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) were involved in the experimental procedure.

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kuwano, Satoru;Masuda, Toshinobu published 《N-Heterocyclic Carbene Catalyzed Monoacylation of Vicinal Diols》 in 2016. The article was appeared in 《Synthesis》. They have made some progress in their research.Computed Properties of C14H14O2 The article mentions the following:

The N-heterocyclic carbene (NHC)-catalyzed monoacylation of vicinal diols is described. Monoacylated compounds of 1,2-, 1,3-, and 1,4-diols are obtained in good yields and selectivity under mild reaction conditions at ambient temperature The experimental procedure involved many compounds, such as rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas: 579-43-1 Computed Properties of C14H14O2) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bag, Raghunath;Sar, Dinabandhu;Punniyamurthy, Tharmalingam published 《Aerobic Metal-Free Dioxygenation of Alkenes with tert-Butyl Nitrite and N-Hydroxylamines》 in 2017. The article was appeared in 《ACS Omega》. They have made some progress in their research.Formula: C14H14O2 The article mentions the following:

Metal-free dioxygenation of alkenes with tert-Bu nitrite and N-hydroxylamines (NHPI, HOBt and NHSI) is described to produce β-aminoxy nitrate esters using air as the oxidant. These organic nitrates can be readily converted into 1,2-diols and 1,2-diketone with broad substrate scope and functional group diversity. And rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) was used in the research process.

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Formula: C14H14O2) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pan, Liangkun;Ke, Zhihai;Yeung, Ying-Yeung published 《Lewis Base Catalyzed Dioxygenation of Olefins with Hypervalent Iodine Reagents》. The research results were published in《Organic Letters》 in 2021.Category: alcohols-buliding-blocks The article conveys some information:

1,2-Diols were extremely useful building blocks in organic synthesis. Hypervalent iodine reagents were useful for the vicinal dihydroxylation of olefins to gave 1,2-diols under metal-free conditions, but strongly acidic promoters were often required. Herein, synthesis of 1,2-diols R¹CHOHCHOHR² [R¹ = n-hexyl, Ph, Bn, etc.; R² = H, Ph] and acetals R³CH₂CH(OMe)₂ [R³ = Ph, 4-MeOC₆H₄, (4-acetoxyphenyl), etc.] via catalytic vicinal dioxygenation of olefins with hypervalent iodine reagents using Lewis bases as catalysts was reported. The conditions were mild and compatible with various functional groups. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Category: alcohols-buliding-blocks) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diolIn 2020, Chatterjee, Gourav;Shadangi, Krushna Prasad;Mohanty, Kaustubha published 《Effect of Catalyst Bed Height on the Yield and Composition of Non-edible Seed Pyrolytic Oil》. 《Waste and Biomass Valorization》published the findings. The article contains the following contents:

The thermal and catalytic vapor cracking of non-edible seed such as Kassod seed was studied in a fixed bed reactor. The effect of temperature on the yield of pyrolytic liquid was observed from thermal pyrolysis and the optimum temperature was determined At the optimum temperature catalytic vapor cracking using CaO was studied by varying the catalyst loading as well as the bed height. The effect of catalyst loading and bed height on the yield, fuel properties, distillation temperature and composition of pyrolytic oil were determined The results confirmed that thermal pyrolysis of Kassod seed at 550°C yielded 50.21 wt% of pyrolytic liquid containing 39.86 wt% and 10.35 wt% organic and aqueous phase resp. The highest yield of pyrolytic oil (organic liquid) was 31.2 wt% and 22.95 wt% obtained at 2 wt% loading of catalyst at a bed height of 8.5 cm and 11.1 cm resp. The effect of catalytic vapor cracking with the variation in the bed height on the fuel properties confirmed that increasing the catalyst bed height raised the basicity of the pyrolytic oil. The gross calorific value of the oil increased at higher wt% of catalyst loading and were better at the catalyst bed height of 11.1 cm. The catalytic vapor cracking enhanced the fuel properties of the pyrolytic oil by the formation of more volatile components in the pyrolytic oil. The variation in the composition of the pyrolytic oil with and without catalyst was confirmed from the GC-MS anal.rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) were involved in the experimental procedure.

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Formula: C14H14O2《Iron-catalyzed one-pot synthesis of quinoxalines: transfer hydrogenative condensation of 2-nitroanilines with vicinal diols》 was published in 2021. The authors were Putta, Ramachandra Reddy;Chun, Simin;Lee, Seok Beom;Hong, Junhwa;Oh, Dong-Chan;Hong, Suckchang, and the article was included in《RSC Advances》. The author mentioned the following in the article:

Here, iron-catalyzed one-pot synthesis of quinoxalines via transfer hydrogenative condensation of 2-nitroanilines with vicinal diols was reported. The tricarbonyl (η⁴-cyclopentadienone) iron complex, which was well known as the Knolker complex, catalyzed the oxidation of alcs. and the reduction of nitroarenes, and the corresponding carbonyl and 1,2-diaminobenzene intermediates were generated in situ. Trimethylamine N-oxide was used to activate the iron complex. Various unsym. and sym. vicinal diols were applied for transfer hydrogenation, resulting in quinoxaline derivatives in 49-98% yields. A plausible mechanism was proposed based on a series of control experiments The major advantages of this protocol were that no external redox reagents or addnl. base was needed and that water is liberated as the sole byproduct. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Formula: C14H14O2) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 579-43-1In 2020, Fujita, Masashi;Kobayashi, Fumihisa;Ide, Takafumi;Egami, Hiromichi;Hamashima, Yoshitaka published 《Oxidative and Redox-Neutral Approaches to Symmetrical Diamines and Diols by Single Electron Transfer/Hydrogen Atom Transfer Synergistic Catalysis》. 《European Journal of Organic Chemistry》published the findings. The article contains the following contents:

Homocoupling reactions of benzylamines and benzyl alcs. were examined under synergistic catalysis conditions with a photoredox catalyst and thiobenzoic acid as a hydrogen atom abstractor. When pivalaldehyde was used as an electron acceptor, oxidative dimerization proceeded selectively, whereas the use of benzaldehydes or iminium ions as electron acceptors resulted in redox-neutral coupling. These reactions afforded sym. 1,2-diamines and 1,2-diols in good yields. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Related Products of 579-43-1) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts