Tag: 200-300

Catalytic hydrogenolysis of lignin β-O-4 aryl ether compound and lignin to aromatics over Rh/Nb₂O₅ under low H₂ pressure was written by Guan, Weixiang;Chen, Xiao;Hu, Haoquan;Tsang, Chi-Wing;Zhang, Jie;Lin, Carol Sze Ki;Liang, Changhai. And the article was included in Fuel Processing Technology in 2020.Product Details of 103-16-2 The following contents are mentioned in the article:

The increasing risk of fossil fuels depletion due to surging energy demand has accelerated the search of alternative renewable sources. Lignin, one of the major components of lignocellulosic biomass, is the only abundant renewable natural resource for aromatic compounds In this work, the effects of metals and process parameters were discussed via the catalytic hydrogenolysis of β-O-4 lignin model compound, 2-phenethyl Ph ether. The best results were obtained over Rh/Nb₂O₅ with an overall conversion of 99.3% and exceptional selectivity of 98.9% to aromatic products when the hydrogenolysis was carried out at 260° and 0.1 MPa H₂ for 4 h. The high efficiency is mainly attributed to the cooperation between Rh and NbOx at the perimeter sites, in which Rh particles are responsible for the dissociation of H₂ and NbOx for activating C-O bonds. With respect to depolymerize of ash wood lignin, the liquid products were mostly aromatics over Rh/Nb₂O₅ under 0.1 MPa H₂. The results achieved in this work provide a promising prospect towards valorization of lignin into production of valuable aromatic compounds under low hydrogen pressure. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Product Details of 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Product Details of 103-16-2

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Rapid phenolic O-glycosylation of small molecules and complex unprotected peptides in aqueous solvent was written by Wadzinski, Tyler J.;Steinauer, Angela;Hie, Liana;Pelletier, Guillaume;Schepartz, Alanna;Miller, Scott J.. And the article was included in Nature Chemistry in 2018.Category: ethers-buliding-blocks The following contents are mentioned in the article:

Glycosylated natural products and synthetic glycopeptides represent a significant and growing source of biochem. probes and therapeutic agents. However, methods that enable the aqueous glycosylation of endogenous amino acid functionality in peptides without the use of protecting groups are scarce. Here, we report a transformation that facilitates the efficient aqueous O-glycosylation of phenolic functionality in a wide range of small mols., unprotected tyrosine, and tyrosine residues embedded within a range of complex, fully unprotected peptides. The transformation, which uses glycosyl fluoride donors and is promoted by Ca(OH)₂, proceeds rapidly at room temperature in water, with good yields and selective formation of unique anomeric products depending on the stereochem. of the glycosyl donor. High functional group tolerance is observed, and the phenol glycosylation occurs selectively in the presence of virtually all side chains of the proteinogenic amino acids with the singular exception of Cys. This method offers a highly selective, efficient, and operationally simple approach for the protecting-group-free synthesis of O-aryl glycosides and Tyr-O-glycosylated peptides in water. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Category: ethers-buliding-blocks).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Category: ethers-buliding-blocks

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Pd-catalyzed decarboxylative Suzuki reactions and orthogonal Cu-based O-arylation of aromatic carboxylic acids was written by Dai, Jian-Jun;Liu, Jing-Hui;Luo, Dong-Fen;Liu, Lei. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2011.Electric Literature of C12H17BO3 The following contents are mentioned in the article:

Pd-catalyzed decarboxylative Suzuki reactions and orthogonal Cu-based O-arylation reactions of aromatic carboxylic acids are reported. The new reactions may provide alternative routes for the synthesis of some biaryls and aromatic carboxylic esters. This study involved multiple reactions and reactants, such as 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1Electric Literature of C12H17BO3).

2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Electric Literature of C12H17BO3

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Cationic Palladium(II)-Catalyzed Highly Enantioselective Tandem Reactions of ortho-Boronate-Substituted Cinnamic Ketones and Internal Alkynes: A Convenient Synthesis of Optically Active Indenes was written by Zhou, Feng;Yang, Miao;Lu, Xiyan. And the article was included in Organic Letters in 2009.COA of Formula: C14H19BO4 The following contents are mentioned in the article:

Cationic palladium(II)-catalyzed tandem reactions of ortho-boronate-substituted cinnamic ketones and internal alkynes to yield optically active indenes, e.g., I, were developed in high yields and good enantioselectivities. This study involved multiple reactions and reactants, such as 5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9COA of Formula: C14H19BO4).

5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.COA of Formula: C14H19BO4

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Oxidant-Induced Azolation of Electron-Rich Phenol Derivatives was written by Wang, Xiaoyu;Wang, Shengchun;Gao, Yiming;Sun, He;Liang, Xing’an;Bu, Faxiang;Abdelilah, Takfaoui;Lei, Aiwen. And the article was included in Organic Letters in 2020.Synthetic Route of C13H12O2 The following contents are mentioned in the article:

An oxidant-induced intermol. azolation of phenol derivatives was demonstrated under catalyst-free condition. Both monoazolation and diazolation of phenols was successfully achieved via this practical and powerful method. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Synthetic Route of C13H12O2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C13H12O2

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Oxidant-Induced Azolation of Electron-Rich Phenol Derivatives was written by Wang, Xiaoyu;Wang, Shengchun;Gao, Yiming;Sun, He;Liang, Xing’an;Bu, Faxiang;Abdelilah, Takfaoui;Lei, Aiwen. And the article was included in Organic Letters in 2020.Recommanded Product: 103-16-2 The following contents are mentioned in the article:

An oxidant-induced intermol. azolation of phenol derivatives was demonstrated under catalyst-free condition. Both monoazolation and diazolation of phenols was successfully achieved via this practical and powerful method. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 103-16-2

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Controlled Alcohol-Carbonyl Interconversion by Nickel Catalysis was written by Maekawa, Takehisa;Sekizawa, Hiromi;Itami, Ken-Ichiro. And the article was included in Angewandte Chemie, International Edition in 2011.Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane The following contents are mentioned in the article:

The one-pot reaction of primary alcs. with arylneopentylboronates in presence of [Ni(cod)₂] and 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene hydrochloride to give secondary and tertiary alcs. is reported. This study involved multiple reactions and reactants, such as 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane).

2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane

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Ether – Wikipedia,
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Development of novel catalytic reactions involving activation of unreactive bonds was written by Tobisu, Mamoru;Chatani, Naoto. And the article was included in Kagaku Kogyo in 2009.Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane The following contents are mentioned in the article:

Transition metal catalysts are used to cleave bonds which were considered inert bonds such as carbon-hydrogen, carbon-carbon, and carbon-oxygen bonds and have showed direct usage of chem. conversion. This study involved multiple reactions and reactants, such as 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane).

2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Application In Synthesis of 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane

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Ether – Wikipedia,
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Rhodium-Catalyzed Addition-Spirocyclization of Arylboronic Esters Containing β-Aryl α,β-Unsaturated Ester Moiety was written by Matsuda, Takanori;Yasuoka, Satoshi;Watanuki, Shoichi;Fukuhara, Keisuke. And the article was included in Synlett in 2015.Electric Literature of C14H19BO4 The following contents are mentioned in the article:

In this study, we developed a rhodium(I)-catalyzed spirocyclization. The reaction includes 1,4-rhodium migration and provides a route for forming spirocyclic 1-indanones. This study involved multiple reactions and reactants, such as 5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9Electric Literature of C14H19BO4).

5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (cas: 1132669-90-9) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Electric Literature of C14H19BO4

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Total synthesis of heliannuol B, an allelochemical from Helianthus annuus was written by Roy, Amalesh;Biswas, Bidyut;Sen, Prabir K.;Venkateswaran, Ramanathapuram V.. And the article was included in Tetrahedron Letters in 2007.Application In Synthesis of 4-(Benzyloxy)-3-methylphenol The following contents are mentioned in the article:

A total synthesis of the allelochem. heliannuol B (I) is described employing ring closing metathesis to generate the central benzoxepane ring system. This study involved multiple reactions and reactants, such as 4-(Benzyloxy)-3-methylphenol (cas: 100927-02-4Application In Synthesis of 4-(Benzyloxy)-3-methylphenol).

4-(Benzyloxy)-3-methylphenol (cas: 100927-02-4) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application In Synthesis of 4-(Benzyloxy)-3-methylphenol

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Ether – Wikipedia,
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