Category: 579-43-1

Baral, Ek Raj;Lee, Jun Hee;Kim, Jeung Gon published 《Diphenyl Carbonate: A Highly Reactive and Green Carbonyl Source for the Synthesis of Cyclic Carbonates》. The research results were published in《Journal of Organic Chemistry》 in 2018.Application In Synthesis of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

A practical, safe, and highly efficient carbonylation system involving a di-Ph carbonate, an organocatalyst, and various diols is presented herein and produces highly valuable cyclic carbonates. In reactions with a wide range of diols, di-Ph carbonate was activated by bicyclic guanidine 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as a catalyst, which successfully replaced highly toxic and unstable phosgene or its derivatives while maintaining the desired high reactivity. Moreover, this new system can be used to synthesize sterically demanding cyclic carbonates such as tetrasubstituted pinacol carbonates, which are not accessible via other conventional methods. 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 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:
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Related Products of 579-43-1《Highly efficient cationic palladium catalyzed acetylation of alcohols and carbohydrate-derived polyols》 was published in 2016. The authors were Mensah, Enoch A.;Reyes, Francisco R.;Standiford, Eric S., and the article was included in《Catalysts》. The author mentioned the following in the article:

The development of a new facile method for the acetylation of alcs. and carbohydrate-derived polyols is described. This method relies on the nature of the cationic palladium catalyst, Pd(PhCN)₂(OTf)₂, which is generated in situ from Pd(PhCN)₂Cl₂ and AgOTf to catalyze the acetylation reaction. This new acetylation protocol is very rapid and proceeds under mild conditions with only 1 mol% of catalyst loading at room temperature This new method has been applied to a variety of different alcs. with different levels of steric hindrance, as well as carbohydrate-derived polyols to provide the corresponding fully acetylated products in excellent yields. And rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) was used in the research process.

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

Reference:
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Pilevar, Afsaneh;Hosseini, Abolfazl;Becker, Jonathan;Schreiner, Peter R. published 《Syn-Dihydroxylation of Alkenes Using a Sterically Demanding Cyclic Diacyl Peroxide》 in 2019. The article was appeared in 《Journal of Organic Chemistry》. They have made some progress in their research.Name: rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article mentions the following:

The syn-dihydroxylation of alkenes is a highly valuable reaction in organic synthesis. Cyclic acyl peroxides (CAPs) have emerged recently as promising candidates to replace the commonly employed toxic metals for this purpose. Here, we demonstrate that the structurally demanding cyclic peroxide spiro[bicyclo[2.2.1]heptane-2,4′-[1,2]dioxolane]-3′,5′-dione (P4) can be effectively used for the syn-dihydroxylation of alkenes. Reagent P4 also shows an improved selectivity for dihydroxylation of alkenes bearing β-hydrogens as compared to other CAPs, where both diol and allyl alc. products compete with each other. Furthermore, the use of enantiopure P4 (labeled P4′) demonstrates the potential of P4′ for a metal-free asym. syn-dihydroxylation of alkenes. 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 Name: 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.

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Siu, Timothy C.;Silva, Israel Jr;Lunn, Maiko J.;John, Alex published 《Influence of the pendant arm in deoxydehydration catalyzed by dioxomolybdenum complexes supported by amine bisphenolate ligands》 in 2020. The article was appeared in 《New Journal of Chemistry》. They have made some progress in their research.SDS of cas: 579-43-1 The article mentions the following:

Dioxomolybdenum complexes supported by aminebisphenolate ligands were evaluated for their potential in catalyzing the deoxydehydration (DODH) reaction to establish structure-activity relationships. The nature of the pendant arm in these aminebisphenolate ligands was found to be crucial in determining reactivity in the deoxydehydration of styrene glycol (1-phenyl-1,2-ethanediol) to styrene. Pendant arms bearing strongly coordinating N-based groups such as pyridyl or amino substituents were found to hinder activity while those bearing non-coordinating pendant arms (benzyl) or even weakly coordinating groups (an ether) resulted in up to 6 fold enhanced catalytic activity. A dioxomolybdenum complex featuring an aminemonophenolate ligand derived from the aminebisphenolate skeleton also resulted in similar yield enhancements. Although aromatic solvents were found to be ideal for performing these catalytic reactions, polar solvents such as N,N-dimethylformamide (DMF) and N,N’-dimethylpropyleneurea (DMPU) were also suitable. The catalyst was found to maintain its structural integrity under the optimized conditions and could be recycled for a second catalytic run without loss of activity. With the activated substrate meso-hydrobenzoin, trans-stilbene was obtained in a 56% yield at 220°C along with benzaldehyde (71%) suggesting that the diol was a competing reductant under these conditions.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 SDS of cas: 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,
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Pan, Hui-Jie;Lin, Yamei;Gao, Taotao;Lau, Kai Kiat;Feng, Wei;Yang, Binmiao;Zhao, Yu published 《Catalytic Diastereo- and Enantioconvergent Synthesis of Vicinal Diamines from Diols through Borrowing Hydrogen》. The research results were published in《Angewandte Chemie, International Edition》 in 2021.Category: alcohols-buliding-blocks The article conveys some information:

Authors present herein an unprecedented diastereoconvergent synthesis of vicinal diamines from diols through an economical, redox-neutral process. Under cooperative ruthenium and Lewis acid catalysis, readily available anilines and 1,2-diols (as a mixture of diastereomers)couple to forge two C-N bonds in an efficient and diastereoselective fashion. By identifying an effective chiral iridium/phosphoric acid co-catalyzed procedure, the first enantioconvergent double amination of racemic 1,2-diols has also been achieved, resulting in a practical access to highly valuable enantioenriched vicinal diamines. And rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) was used in the research process.

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.

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Kobayashi, Daiki;Kodama, Shintaro;Ishii, Youichi published 《An oxidovanadium(IV) complex having a perrhenato ligand: An efficient catalyst for aerobic oxidation reactions of benzylic and propargylic alcohols》 in 2017. The article was appeared in 《Tetrahedron Letters》. 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:

An oxidovanadium(IV) complex having a perrhenato ligand [VO(ReO₄)(4,4′-^tBubpy)₂][0.25SO₄·0.5ReO₄] (4,4′-^tBubpy = 4,4′-di-tert-butyl-2,2′-bipyridine) efficiently catalyzes not only dehydrogenative oxidation of benzylic and propargylic mono-alcs. but also oxidative C-C bond cleavage of meso-1,2-diaryl-1,2-ethanediols under atm. mol. oxygen, affording the corresponding carbonyl compounds in good yield. And rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) was used in the research process.

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) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

Reference:
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Category: alcohols-buliding-blocksIn 2016, Sotto, Nicolas;Cazorla, Clement;Villette, Carole;Billamboz, Muriel;Len, Christophe published 《Selective Pinacol-Coupling Reaction using a Continuous Flow System》. 《Journal of Organic Chemistry》published the findings. The article contains the following contents:

The first continuous flow pinacol coupling reaction of carbonyl compounds was successfully achieved within only 2 min during a single pass through a cartridge filled with zinc(0). The optimized method allowed the efficient production of gram-scale value-added compounds with high productivity. The developed methodol. is efficient for aromatic or α,β-unsaturated aldehydes but gives moderate results for more stable acetophenone derivatives Moreover, the flow method displayed better results in terms of yield and selectivity in comparison to the corresponding batch methodol. 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,
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Gao, Xiaofang;Lin, Jiani;Zhang, Li;Lou, Xinyao;Guo, Guanghui;Peng, Na;Xu, Huan;Liu, Yi published 《Iodine-Initiated Dioxygenation of Aryl Alkenes Using tert-Butylhydroperoxides and Water: A Route to Vicinal Diols and Bisperoxides》 in 2021. The article was appeared in 《Journal of Organic Chemistry》. They have made some progress in their research.Reference of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article mentions the following:

An environment-friendly and efficient dioxygenation of aryl alkenes for the construction of vicinal diols ArCH(OH)CH(OH)R [Ar = Ph, 2-MeC₆H₄, 4-MeC₆H₄, etc.; R = H, Br, Me, etc.] was developed in water with iodine as the catalyst and tert-butylhydroperoxides (TBHPs) as the oxidant. The protocol was efficient, sustainable, and operationally simple. Detailed mechanistic studies indicated that one of the hydroxyl groups was derived from water and the other one was derived from TBHP. Addnl., the bisperoxides ArCH(OOtBu)CH(OOtBu)R [Ar = Ph, 4-MeC₆H₄, 3-FC₆H₄, etc.] could be obtained in good yields with iodine as the catalyst, Na₂CO₃ as the additive, and propylene carbonate as the solvent, instead. 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 Reference 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.

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Cano, Rafael;Perez, Juana M.;Ramon, Diego J. published 《Osmium impregnated on magnetite as a heterogeneous catalyst for the syn-dihydroxylation of alkenes》. The research results were published in《Applied Catalysis, A: General》 in 2014.Recommanded Product: rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

A new catalyst derived from osmium has been prepared, fully characterized and tested in the dihydroxylation of alkenes. The catalyst was prepared by wet impregnation methodol. of OsCl₃·3H₂O on a com. micro-magnetite surface. The catalyst allowed the reaction with one of the lowest osmium loadings for a heterogeneous catalyst and was selective for the monodihydroxylation of 1,5-dienes. Moreover, the catalyst was easily removed from the reaction medium by the simple use of a magnet. The selectivity of catalyst is very high with conversions up to 99%. Preliminary kinetics studies showed a first-order reaction rate with respect to the catalyst. 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 Recommanded Product: 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,
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Formula: C14H14O2In 2020, Murayama, Hiroaki;Heike, Yoshito;Higashida, Kosuke;Shimizu, Yohei;Yodsin, Nuttapon;Wongnongwa, Yutthana;Jungsuttiwong, Siriporn;Mori, Seiji;Sawamura, Masaya published 《Iridium-Catalyzed Enantioselective Transfer Hydrogenation of Ketones Controlled by Alcohol Hydrogen-Bonding and sp³-C-H Noncovalent Interactions》. 《Advanced Synthesis & Catalysis》published the findings. The article contains the following contents:

Iridium-catalyzed enantioselective transfer hydrogenation of ketones with formic acid was developed using a prolinol-phosphine chiral ligand. Cooperative action of the iridium atom and the ligand through alc.-alkoxide interconversion was crucial to facilitate the transfer hydrogenation. Various ketones including alkyl aryl ketones, ketoesters, and an aryl heteroaryl ketone were competent substrates. An attractive feature of this catalysis was efficient discrimination between the alkyl and aryl substituents of the ketones, promoting hydrogenation with the identical sense of enantioselection regardless of steric demand of the alkyl substituent and thus resulting in a rare case of highly enantioselective transfer hydrogenation of tert-alkyl aryl ketones. Quantum chem. calculations revealed that the sp³-C-H/π interaction between an sp³-C-H bond of the prolinol-phosphine ligand and the aryl substituent of the ketone was crucial for the enantioselection in combination with O-H···O/sp³-C-H···O two-point hydrogen-bonding between the chiral ligand and carbonyl group.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 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,
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