Month: October 2022

The author of 《Total synthesis of indolizidine alkaloid (-)-209D: overriding substrate bias in the asymmetric rhodium-catalyzed [2+2+2] cycloaddition》 were Yu, Robert T.; Lee, Ernest E.; Malik, Guillaume; Rovis, Tomislav. And the article was published in Angewandte Chemie, International Edition in 2009. Recommanded Product: 329735-68-4 The author mentioned the following in the article:

The use of chiral biphenyl-based phosphoramidite ligands on rhodium provides an efficient [2+2+2] cycloaddition between terminal alkyl alkynes, e.g. 1-octyne, and alkenyl isocyanates, e.g. H2C:CH(CH2)3NCO. The cycloaddition proceeds through a CO migration pathway, and facilitates a rapid four-step asym. synthesis of indolizidine (-)-209D (I). In the experiment, the researchers used (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4Recommanded Product: 329735-68-4)

(R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4) belongs to phenols. Phenols are more acidic than typical alcohols.Recommanded Product: 329735-68-4 The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wakamiya, Yuma; Ebine, Makoto; Matsumori, Nobuaki; Oishi, Tohru published an article on February 19 ,2020. The article was titled 《Total Synthesis of Amphidinol 3: A General Strategy for Synthesizing Amphidinol Analogues and Structure-Activity Relationship Study》, and you may find the article in Journal of the American Chemical Society.Reference of (R)-Oxiran-2-ylmethanol The information in the text is summarized as follows:

Amphidinol 3 (AM3) is a potent antifungal produced by the dinoflagellate Amphidinium klebsii. It was difficult to determine the absolute configuration of AM3 by using the scarce natural product due to the presence of numerous stereogenic centers on the acyclic carbon chain. Since the absolute configuration was partially determined on the basis of insufficient evidence, the originally proposed structure has been revised three times. Although recent progress on structure determination by computational anal. is remarkable, total synthesis is still the most reliable way to confirm structures. The first total synthesis of AM3 was achieved via expeditious assembly of three components in five steps, confirming the revised structure of AM3 after more than 20 years since its first discovery. The established synthetic route would be a general strategy for synthesizing amphidinol congeners. An artificial and simplified analog of AM3, which elicited antifungal activity comparable to that of AM3, was designed and synthesized. This is the first example of a biol. active artificial analog possessing a shorter polyol moiety, providing insight on the antifungal mode-of-action. After reading the article, we found that the author used (R)-Oxiran-2-ylmethanol(cas: 57044-25-4Reference of (R)-Oxiran-2-ylmethanol)

(R)-Oxiran-2-ylmethanol(cas: 57044-25-4) is a chiral building block used to construct an epoxyvinyl iodide intermediate in a synthesis of a furanocembrane, a marine natural product.Reference of (R)-Oxiran-2-ylmethanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Diana J.; Targos, Karina; Wickens, Zachary K. published their research in Journal of the American Chemical Society on December 29 ,2021. The article was titled 《Electrochemical Synthesis of Allylic Amines from Terminal Alkenes and Secondary Amines》.Safety of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride The article contains the following contents:

Allylic amines are valuable synthetic targets en route to diverse biol. active amine products. Current allylic C-H amination strategies remain limited with respect to the viable N-substituents. Herein, authors disclose a new electrochem. process to prepare aliphatic allylic amines by coupling two abundant starting materials: secondary amines and unactivated alkenes. This oxidative transformation proceeds via electrochem. generation of an electrophilic adduct between thianthrene and the alkene substrates. Treatment of these adducts with aliphatic amine nucleophiles and base provides allylic amine products in high yield. This synthetic strategy is also amenable to functionalization of feedstock gaseous alkenes at 1 atm. In the case of 1-butene, high Z-selective crotylation is observed This strategy, however, is not limited to the synthesis of simple building blocks; complex biol. active mols. are suitable as both alkene and amine coupling partners. Preliminary mechanistic studies implicate vinylthianthrenium salts as key reactive intermediates. The experimental part of the paper was very detailed, including the reaction process of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4Safety of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride)

trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4) is a mucolytic expectorant and a metabolite of bromhexine.Safety of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride It is used in the treatment of respiratory disorders characterized by viscous or excessive mucus.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Le-Cheng; Chen, Bo; Zhang, Youcan; Wu, Xiao-Feng published their research in Angewandte Chemie, International Edition on August 15 ,2022. The article was titled 《Nickel-Catalyzed Four-Component Carbonylation of Ethers and Olefins: Direct Access to γ-Oxy Esters and Amides》.Synthetic Route of C12H20O6 The article contains the following contents:

Multi-component carbonylation of olefins, a reaction that installs both a carbon-carbon(heteroatom) bond and a carbonyl group across the double bond, is an attractive strategy for alkene functionalization. Herein, a novel nickel-catalyzed four-component carbonylation of olefins with ethers under low CO gas pressure is developed. Using alcs. and amines as the reaction partner, diverse γ-oxy-substituted esters and amides were produced in good yields with excellent functional group tolerance. Notably, Naftidrofuryl, a medicine for the treatment of cerebrovascular disease (CVD), can be synthesized by this process straightforwardly. After reading the article, we found that the author used ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6Synthetic Route of C12H20O6)

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6) is a useful reactant for examining the effectiveness of sulfamate and sulfamide groups for the inhibition of carbonic anhydrase-​II (CA-​II)​. And it is used as chiral auxiliaries in Michael and Aldol addition reactions.Synthetic Route of C12H20O6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2015,Karlsson, Staffan; Bergman, Rolf; Loefberg, Christian; Moore, Peter R.; Ponten, Fritiof; Tholander, Joakim; Soerensen, Henrik published 《Development of a Large-Scale Route to an MCH1 Receptor Antagonist: Investigation of a Staudinger Ketene-Imine Cycloaddition in Batch and Flow Mode》.Organic Process Research & Development published the findings.SDS of cas: 18621-18-6 The information in the text is summarized as follows:

A practical large-scale route to an MCH1 receptor antagonist, azetidinyl oxadiazole I, is described. A Staudinger β-lactam synthesis of an imine and an in situ generated ketene was utilized as a key step for the preparation of a spiro-azetidine building block. The reaction was demonstrated in both batch and flow mode and a comparison of these techniques is described. In the experimental materials used by the author, we found Azetidin-3-ol hydrochloride(cas: 18621-18-6SDS of cas: 18621-18-6)

Azetidin-3-ol hydrochloride(cas:18621-18-6) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.SDS of cas: 18621-18-6 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2017,Rezazadeh, Sina; Devannah, Vijayarajan; Watson, Donald A. published 《Nickel-Catalyzed C-Alkylation of Nitroalkanes with Unactivated Alkyl Iodides》.Journal of the American Chemical Society published the findings.Electric Literature of C6H13NO The information in the text is summarized as follows:

In the presence of a nickel(II) diphenyldimethylphenanthroline complex, primary, secondary, and tertiary alkyl iodides such as 3-phenyl-1-Pr iodide alkylated primary nitroalkanes such as Et 4-nitrobutanoate with potassium tert-butoxide and diethylzinc in 1,4-dioxane/MTBE to provide nitroalkanes such as Ph(CH2)3CH(NO2)(CH2)3CO2Et in 34-85% yields. Alkenes, esters, phthalimides, and protected amines, alcs., and ketones were tolerated; compound with Lewis basic groups could be prepared in improved yields with addnl. phenanthroline ligand. TEMPO inhibited the alkylation, and alkylation with cyclpropylmethyl iodide and 6-iodo-1-hexene yielded ring-opened and cyclized products, resp., implying a radical mechanism for the alkylation. The antiviral agent adapromine was prepared in two steps using this method. The structures of cis- and trans-N-(iodocyclohexyl)fluorobenzamides and cis- and trans-N-[(nitromethyl)cyclohexyl]fluorobenzamides were determined by X-ray crystallog. In the experiment, the researchers used many compounds, for example, trans-4-Aminocyclohexanol(cas: 27489-62-9Electric Literature of C6H13NO)

trans-4-Aminocyclohexanol(cas: 27489-62-9) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Electric Literature of C6H13NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Macromolecules (Washington, DC, United States) included an article by Fu, Linxia; Yang, Jixing; Dong, Liqi; Yu, Huitao; Yan, Qinghai; Zhao, Fulai; Zhai, Fei; Xu, Yunhua; Dang, Yanfeng; Hu, Wenping; Feng, Yiyu; Feng, Wei. SDS of cas: 4048-33-3. The article was titled 《Solar Thermal Storage and Room-Temperature Fast Release Using a Uniform Flexible Azobenzene-Grafted Polynorborene Film Enhanced by Stretching》. The information in the text is summarized as follows:

Deformation-controlled solar thermal storage and release are important for thermal management of dynamic systems. However, few researchers have examined cyclic solid-state solar thermal utilization with different deformations. A uniform flexible stretchable solar thermal fuel film is presented using polynorbornene-templated azobenzene (PNB-Azo) with ring-opening metathesis polymerization and covalent grafting. This film has a high degree of isomerization and good storage stability compared to push-pull electronic interaction. At 20% strain rate, the film combines high-degree photocharging (85%), high energy d. (49.0 Wh kg-1), and high rate of heat release induced by blue light (475 nm) at room temperature Greater free volume improves isomerization and the first-order kinetic constant is increased by 1 order of magnitude. Reversible elec.-driven dynamic stretching during charging and discharging enables PNB-Azo””fingers”” to release heat more rapidly than static stretched film, resulting in a temperature increase of 1.5 °C. The result indicates that PNB-Azofilm can be used as a high-power dynamic solar heat source by controlling the deformation. The experimental part of the paper was very detailed, including the reaction process of 6-Aminohexan-1-ol(cas: 4048-33-3SDS of cas: 4048-33-3)

6-Aminohexan-1-ol(cas: 4048-33-3) may be used along with glutaric acid to generate poly(ester amide)s with excellent film- and fiber forming properties. It can undergo cyclization over copper supported on γ-alumina and magnesia to form hexahydro-1H-azepine.SDS of cas: 4048-33-3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Journal of Colloid and Interface Science included an article by Huang, Chengrong; Shang, Longmei; Han, Peng; Gu, Zhengxiang; Al-Enizi, Abdullah M.; Almutairi, Tahani M.; Cao, Na; Zheng, Gengfeng. Category: alcohols-buliding-blocks. The article was titled 《Electrochemical N2 fixation by Cu-modified iron oxide dendrites》. The information in the text is summarized as follows:

The electrochem. nitrogen reduction reaction (NRR) under mild conditions is significantly challenging, due to the extremely high stability of dinitrogen (N2) mols. The NRR pathway also confronts the competitive water reduction reaction that takes places universally in an aqueous solution Herein, a Fe2O3/Cu catalyst is demonstrated as an efficient NRR electrocatalyst. The electronic interactions elevate the d-state electron center, enabling strong back-bonding for N2 mols. The altering of d-electron distribution promotes the adsorption of N2, leading to a high catalytic activity. As a result, the Fe2O3/Cu catalyst exhibits an outstanding ammonia production rate of 15.66 μg·h-1·mg-1cat. at -0.1 V vs. reversible hydrogen electrode (RHE), a Faradaic efficiency of 24.4%, and a good electrochem. stability. In the experiment, the researchers used Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Category: alcohols-buliding-blocks)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Category: alcohols-buliding-blocks As a Biuret reagent, it is used to measure the protein concentration. Furthermore, it is used as laxative and is also used in food industry.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Poly[(side-on mesogen)-alt-(end-on mesogen)]: A Compromised Molecular Arrangement》 were Wang, Meng; Bao, Wei-Wei; Chang, Wen-Ying; Chen, Xu-Man; Lin, Bao-Ping; Yang, Hong; Chen, Er-Qiang. And the article was published in Macromolecules (Washington, DC, United States) in 2019. Name: 6-Aminohexan-1-ol The author mentioned the following in the article:

In recent years, sequence-controlled side-chain liquid crystal polymers (SCLCPs) have gained extensive interest because mesogenic units with different lengths and distributions can form various ordered sequences, which further endow LCP materials with diverse functions. In this manuscript, a side-chain side-on maleimide-containing monomer 2,5-bis-(4-butoxy-benzoyloxy)-benzoic acid 6-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-hexyl ester (Y1801) and a side-chain end-on styrene-containing monomer 4′-[6-(4-vinyl-phenoxy)-hexyloxy]-biphenyl-4-carbonitrile (Y1802) are combined in one single macromol. chain and orderly polymerized in an alternative sequence to form an alternating copolymer Poly(Y1801-alt-Y1802). The chem. structure and alternating sequence of Poly(Y1801-alt-Y1802) are confirmed by GPC and NMR techniques. The combination of DSC, POM, and WAXS data indicates that, although the side-on homopolymer PY1801 and the end-on homopolymer PY1802 both exhibit the nematic phase, their alternating copolymer Poly(Y1801-alt-Y1802) shows an interdigitated smectic A phase, a compromised mol. arrangement instead. In addition, a strong fluorescence emission of Poly(Y1801-alt-Y1802) is observed, which might provide this novel alternating-structured liquid crystal polymer with potential applications in luminescent materials and devices. After reading the article, we found that the author used 6-Aminohexan-1-ol(cas: 4048-33-3Name: 6-Aminohexan-1-ol)

6-Aminohexan-1-ol(cas: 4048-33-3) may be used along with glutaric acid to generate poly(ester amide)s with excellent film- and fiber forming properties. It can undergo cyclization over copper supported on γ-alumina and magnesia to form hexahydro-1H-azepine.Name: 6-Aminohexan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Palladium oxide nanoparticles intercalated mesoporous silica for solvent free acceptorless dehydrogenation reactions of alcohols》 were Samanta, Partha Kumar; Ray, Shounak; Das, Trisha; Gage, Samuel H.; Nandi, Mahasweta; Richards, Ryan M.; Biswas, Papu. And the article was published in Microporous and Mesoporous Materials in 2019. Product Details of 100-55-0 The author mentioned the following in the article:

Aggregation-free well-dispersed palladium oxide nanoparticles intercalated into the walls of mesoporous silica (PdOMS) were prepared by using thioether groups during the sol-gel preparation of mesoporous silica. The PdOMS material was characterized by N2 adsorption-desorption, X-ray diffraction, SEM, transmission electron microscopy and UV-Vis spectroscopy. The material retains mesoporous structure with narrow pore size distribution with an average pore diameter of 6.8 nm and possesses high surface area of 683 m2g-1. The PdOMS catalyst was employed as an efficient heterogeneous catalyst in the acceptor- and oxidant-free dehydrogenation of neat alcs. to corresponding carbonyl compounds in very good to excellent yields (72-95%) at 80° under inert atm. The catalytic efficacy of PdOMS was evaluated for the acceptorless dehydrogenative coupling reactions of alcs. with o-diamino benzene and o-amino phenol to yield azole-based heterocycles. The stability of PdOMS was assessed by investigating its recyclability and reusability in the dehydrogenation of neat alc. for up to five cycles. After reading the article, we found that the author used 3-Pyridinemethanol(cas: 100-55-0Product Details of 100-55-0)

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. Product Details of 100-55-0

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Alcohol – Wikipedia,
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