Tag: 100-200

Chen, Cheng; Wang, Zhi-Qin; Gong, Yan-Yan; Wang, Ji-Chao; Yuan, Ye; Cheng, Hua; Sang, Wei; Chaemchuen, Somboon; Verpoort, Francis published their research in Carbon in 2021. The article was titled 《Cobalt embedded in nitrogen-doped porous carbon as a robust heterogeneous catalyst for the atom-economic alcohol dehydrogenation to carboxylic acids》.Computed Properties of C6H15NO The article contains the following contents:

Herein, cobalt embedded in nitrogen-doped porous carbon (Co@NC) was developed as a robust heterogeneous catalyst for the dehydrogenative coupling of primary alcs. and hydroxides. With Co@NC as the first earth-abundant metal/carbon composite material for this transformation, numerous aromatic and aliphatic carboxylic acids were efficiently afforded. Notably, the newly prepared Co@NC was fabricated in a facile and straightforward manner and reused up to 15 recycle rounds without activity decay. It is also worth emphasizing that the catalyst recycling was realized via magnetic separation with no special treatment or activation. Addnl., further experiments elucidated the pivotal role of the cobalt and nitrogen elements dispersed in the carbon matrix as well as the hierarchical porosity (micro-/meso-pores) in the catalytic activity and recyclability. Considering the active sites of Co@NC, we envisioned that the Co-N species was the most active site, while other active sites such as Co-O, Co0 species and free N-doped carbon were also present, but demonstrating lower activity or stability in comparison with the Co-N species. Addnl. mechanistic investigations were carried out to gain more insights into the possible reaction pathways. We found that the aldehyde was identified as a crucial intermediate, and two possible pathways were proposed for this catalytic process. In the part of experimental materials, we found many familiar compounds, such as 6-Aminohexan-1-ol(cas: 4048-33-3Computed Properties of C6H15NO)

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.Computed Properties of C6H15NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Polymer included an article by Cao, Yufeng; Hu, Guangwei; Lin, Shaohui; Rempel, Garry L.; Pan, Qinmin. Electric Literature of C6H12O. The article was titled 《Synthesis of precisely diphenyl ether-functionalized polyethylene via acyclic diene metathesis polymerization》. The information in the text is summarized as follows:

We demonstrated the facile synthesis of a new class of functionalized polyethylene containing precisely sequenced di-Ph ether moieties via acyclic diene metathesis (ADMET) polymerization of a series of α, ω-diene monomers (M1-M3) with central di-Ph ether segments and subsequent exhaustive hydrogenation. 1H and 13C NMR spectroscopy have provided unambiguous evidence for precise primary architectures of the synthesized monomers and the resulting polymers. The thermal behaviors of all polymers were systematically investigated by thermogravimetric anal. (TGA) and differential scanning calorimetry (DSC). The results indicate that the introduction of di-Ph ether segments significantly enhanced the thermal stability of the polyethylenes. Ring-opening insertion metathesis polymerization (ROIMP) of M1-M3 with cis-cyclooctene was also performed, and after exhaustive hydrogenation, a series of irregularly sequenced copolymers with less regular chain structure and lower di-Ph ether content were yielded. Those copolymers possess a broad and ill-defined melting transition compared with the precisely-defined saturated homopolymers. In the part of experimental materials, we found many familiar compounds, such as 5-Hexen-1-ol(cas: 821-41-0Electric Literature of C6H12O)

5-Hexen-1-ol(cas: 821-41-0) is a volatile organic compound. Further, it is used to prepare 6-bromo-hex-1-ene by reaction with phosphorus tribromide.Electric Literature of C6H12O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Small included an article by Cao, Shoupeng; Shao, Jingxin; Xia, Yifeng; Che, Hailong; Zhong, Zhiyuan; Meng, Fenghua; van Hest, Jan C. M.; Abdelmohsen, Loai K. E. A.; Williams, David S.. Safety of 3-Bromopropan-1-ol. The article was titled 《Molecular programming of biodegradable nanoworms via ionically induced morphology switch toward asymmetric therapeutic carriers》. The information in the text is summarized as follows:

Engineering biodegradable nanostructures with precise morphol. characteristics is a key objective in nanomedicine. In particular, asym. (i.e., nonspherical) nanoparticles are desirable due to the advantageous effects of shape in a biomedical context. Using mol. engineering, it is possible to program unique morphol. features into the self-assembly of block copolymers (BCPs). However, the criteria of biocompatibility and scalability limit progress due to the prevalence of nondegradable components and the use of toxic solvents during fabrication. To address this shortfall, a robust strategy for the fabrication of morphol. asym. nanoworms, comprising biodegradable BCPs, has been developed. Modular BCPs comprising poly (ethylene glycol)-block-poly(caprolactone-gradient-trimethylene carbonate) (PEG-PCLgTMC), with a terminal chain of quaternary ammonium-TMC (PTMC-Q), undergo self-assembly via direct hydration into well-defined nanostructures. By controlling the solution ionic strength during hydration, particle morphol. switches from spherical micelles to nanoworms (of varying aspect ratio). This ionically-induced switch is driven by modulation of chain packing with salts screening interchain repulsions, leading to micelle elongation. Nanoworms can be loaded with cytotoxic cargo (e.g., doxorubicin) at high efficiency, preferentially interact with cancer cells, and increase tumor penetration. This work showcases the ability to program assembly of BCPs and the potential of asym. nanosystems in anticancer drug delivery. After reading the article, we found that the author used 3-Bromopropan-1-ol(cas: 627-18-9Safety of 3-Bromopropan-1-ol)

3-Bromopropan-1-ol(cas: 627-18-9) was used in the synthesis of fluorescent halide-sensitive quinolinium dyes and molten salt-polymers. Furthermore, it was used in the synthesis of chiral, quaternary prolines via cyclization of quaternary amino acids.Safety of 3-Bromopropan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2022,Liu, Qianhui; Wang, Siyang; Zhao, Zeyu; Tong, Jianhua; Urban, Marek W. published an article in Small. The title of the article was 《Electrically Accelerated Self-Healable Polyionic Liquid Copolymers》.Related Products of 627-18-9 The author mentioned the following in the article:

Elec. accelerated self-healable poly(ionic liquids) copolymers that exhibit resistor-capacitor (RC) circuit properties are developed. At low a.c. (AC) frequencies these materials behave as a resistor (R), whereas at higher frequencies as a capacitor (C). These properties are attributed to a combination of dipolar and electrostatic interactions in (1-[(2-methacryloyloxy)ethyl]-3-butylimidazolium bis(trifluoromethyl-sulfonyl)imide) copolymerized with Me methacrylate (MMA) monomers to form p(MEBIm-TSFI/MMA) copolymers. When the monomer molar ratio (MEBIm-TSFI:MMA) is 40/60, these copolymers are capable of undergoing multiple damage-repair cycles and self-healing is accelerated by the application of alternating 1.0-4.0 V elec. field (EF). Self-healing in the absence of EFs is facilitated by van der Waals (vdW) interactions, but the application of AC EF induces back and forth movement of charges against the opposing force that result in dithering of electrostatic dipoles giving rise to interchain phys. crosslinks. Electrostatic inter- and intrachain interactions facilitated by copolymerization of ionic liquid monomers with typically dielec. acrylic-based monomers result in enhanced cohesive energy densities that accelerate the recovery of vdW forces facilitating self-healing. Incorporating ionic liquids into commodity polymers offers promising uses as green conducting solid polyelectrolytes in self-healable energy storage, energy-harvesting devices, and many other applications. The results came from multiple reactions, including the reaction of 3-Bromopropan-1-ol(cas: 627-18-9Related Products of 627-18-9)

3-Bromopropan-1-ol(cas: 627-18-9) was used in the synthesis of fluorescent halide-sensitive quinolinium dyes and molten salt-polymers. Furthermore, it was used in the synthesis of chiral, quaternary prolines via cyclization of quaternary amino acids.Related Products of 627-18-9

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2021,mBio included an article by Guo, Shuaiqi; Vance, Tyler D. R.; Zahiri, Hossein; Eves, Robert; Stevens, Corey; Hehemann, Jan-Hendrik; Vidal-Melgosa, Silvia; Davies, Peter L.. Quality Control of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol. The article was titled 《Structural basis of ligand selectivity by a bacterial adhesin lectin involved in multispecies biofilm formation》. The information in the text is summarized as follows:

Carbohydrate recognition by lectins governs critical host-microbe interactions. MpPA14 (Marinomonas primoryensis PA14 domain) lectin is a domain of a 1.5-MDa adhesin responsible for a symbiotic bacterium-diatom interaction in Antarctica. Here, we show that MpPA14 binds various monosaccharides, with l-fucose and N-acetylglucosamine being the strongest ligands (dissociation constant [Kd], ~150μM). High-resolution structures of MpPA14 with 15 different sugars bound elucidated the mol. basis for the lectin’s apparent binding promiscuity but underlying selectivity. MpPA14 mediates strong Ca2+-dependent interactions with the 3,4-diols of l-fucopyranose and glucopyranoses, and it binds other sugars via their specific minor isomers. Thus, MpPA14 only binds polysaccharides like branched glucans and fucoidans with these free end groups. Consistent with our findings, adhesion of MpPA14 to diatom cells was selectively blocked by l-fucose, but not by N-acetyl galactosamine. The MpPA14 lectin homolog present in a Vibrio cholerae adhesin was produced and was shown to have the same sugar binding preferences as MpPA14. The pathogen’s lectin was unable to effectively bind the diatom in the presence of fucose, thus demonstrating the antiadhesion strategy of blocking infection via ligand-based antagonists. In addition to this study using rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, there are many other studies that have used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Quality Control of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol) was used in this study.

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Quality Control of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Product Details of 6346-09-4On November 14, 2019 ,《Direct Dearomatization of Pyridines via an Energy-Transfer-Catalyzed Intramolecular [4+2] Cycloaddition》 appeared in Chem. The author of the article were Ma, Jiajia; Strieth-Kalthoff, Felix; Dalton, Toryn; Freitag, Matthias; Schwarz, J. Luca; Bergander, Klaus; Daniliuc, Constantin; Glorius, Frank. The article conveys some information:

A catalytic, dearomative cycloaddition reaction with pyridines, e.g., I using photoinduced energy transfer catalysis has been reported, thereby advancing dearomatization methodol. and increasing the topol. of pyridine dearomatization products, e.g., II. This unprecedented method features high yields, broad substrate scope, excellent functional group tolerance, and facile scalability. Furthermore, a recyclable and sustainable polymer immobilized photocatalyst was employed. Computational and exptl. investigations support a mechanism in which a cinnamyl moiety is promoted to its corresponding excited triplet state through visible-light-mediated energy transfer catalysis, followed by a regioselective and dearomative [4+2] cycloaddition to pyridines. This work demonstrates the contribution of visible light catalysis toward enabling thermally challenging organic transformations. In the part of experimental materials, we found many familiar compounds, such as 4,4-Diethoxybutan-1-amine(cas: 6346-09-4Product Details of 6346-09-4)

4,4-Diethoxybutan-1-amine(cas: 6346-09-4) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Product Details of 6346-09-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Visible-Light-Induced Nickel-Catalyzed Cross-Coupling with Alkylzirconocenes from Unactivated Alkenes》 was published in Chem in 2020. These research results belong to Gao, Yadong; Yang, Chao; Bai, Songlin; Liu, Xiaolei; Wu, Qingcui; Wang, Jing; Jiang, Chao; Qi, Xiangbing. Application of 821-41-0 The article mentions the following:

Visible-light-induced single nickel-catalyzed C(sp3)-C(sp3), C(sp3)-C(sp2) and C(sp3)-C(sp) cross-coupling reactions were reported using alkylzirconocenes, which were easily generated in-situ from terminal or internal unactivated alkenes through hydrozirconation and chain walking. This method was mild and applicable for a large range of substrates including primary, secondary, tertiary alkyl, aryl, alkenyl, alkynyl halides and a variety of alkenes. Mechanistic studies suggested a novel nickel-catalyzed radical cross-coupling pathway, which represented the first visible-light-induced transformation of alkylzirconocenes. The experimental process involved the reaction of 5-Hexen-1-ol(cas: 821-41-0Application of 821-41-0)

5-Hexen-1-ol(cas: 821-41-0) is a volatile organic compound. Further, it is used to prepare 6-bromo-hex-1-ene by reaction with phosphorus tribromide.Application of 821-41-0

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Safety of 6-Aminohexan-1-olIn 2019 ,《Three-Component Sequential Reactions for Polymeric Nanoparticles with Tailorable Core and Surface Functionalities》 appeared in Chem. The author of the article were Liu, Bin; Thayumanavan, S.. The article conveys some information:

Efficient strategies for the preparation of nanostructures with tailorable functionalities have implications in enhancing the repertoire of nanomaterials in many applications. Multi-component reactions (MCRs) are very attractive because they are synthetically simple while providing unique access to incorporation of functional groups onto a system. This highly efficient process has not been brought to bear in the preparation of functional polymeric nanostructures. In this paper, we report a three-component sequential reaction that is capable of concurrently functionalizing the core and the surface of the nanoparticles and crosslinking the polymeric assemblies, along with excellent control over size (~10 nm to ~1μm). Variations in core offer the opportunity to optimize the host-guest properties for non-covalent drug encapsulation, while the surface features provide the ability to tune interfacial interactions and achieve organelle targeting in cells. Encapsulation of drug mols. and their triggered release features have been utilized for intracellular drug delivery. In the experiment, the researchers used 6-Aminohexan-1-ol(cas: 4048-33-3Safety of 6-Aminohexan-1-ol)

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

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Qing; Ding, Jierong; Huang, Wenjie; Yu, Hang; Wu, Shaowen; Li, Wenyan; Mao, Xingxue; Chen, Wenfeng; Xing, Junlian; Li, Chen; Yan, Shijuan published their research in Rice on December 31 ,2022. The article was titled 《OsPP65 Negatively Regulates Osmotic and Salt Stress Responses Through Regulating Phytohormone and Raffinose Family Oligosaccharide Metabolic Pathways in Rice》.Related Products of 54-17-1 The article contains the following contents:

Although type 2C protein phosphatases (PP2Cs) have been demonstrated to play important roles in regulating plant development and various stress responses, their specific roles in rice abiotic stress tolerance are still largely unknown. In this study, the functions of OsPP65 in rice osmotic and salt stress tolerance were investigated. Here, we report that OsPP65 is responsive to multiple stresses and is remarkably induced by osmotic and salt stress treatments. Significantly higher induction of genes involved in jasmonic acid (JA) and abscisic acid (ABA) biosynthesis or signaling, as well as higher contents of endogenous JA and ABA, were observed in the OsPP65 knockout plants compared with the wild-type plants after osmotic stress treatment. Further anal. indicated that JA and ABA function independently in osmotic stress tolerance conferred by loss of OsPP65. Moreover, metabolomics anal. revealed higher endogenous levels of galactose and galactinol but a lower content of raffinose in the OsPP65 knockout plants than in the wild-type plants after osmotic stress treatment. These results together suggest that OsPP65 neg. regulates osmotic and salt stress tolerance through regulation of the JA and ABA signaling pathways and modulation of the raffinose family oligosaccharide metabolism pathway in rice. OsPP65 is a promising target for improvement of rice stress tolerance using gene editing. In the experiment, the researchers used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Related Products of 54-17-1)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Related Products of 54-17-1

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Experimental investigation and comparison of bio-oil from hybrid microalgae via super/subcritical liquefaction》 was written by Xu, Yufu; Liu, Kai; Hu, Yuanhua; Dong, Yinghui; Yao, Lulu. Quality Control of 3-Pyridinemethanol And the article was included in Fuel in 2020. The article conveys some information:

The development of liquid bioenergy bio-oil from microalgae has recently attracted much attention, while most of them focused on single feedstock. Super/subcritical liquefaction was applied for bio-oil production from hybrid microalgae. The effects of liquefaction conditions on yield of products were studied. The hybrid microalgae Chlorella and Spirulina with an appropriate mass ratio present synergistic effects for liquefaction. La oxide as catalysts in hydrothermal liquefaction system can improve the quality of the bio-oil. Supercritical alc. liquefaction systems have much higher bio-oil yield, and the maximum yield of bio-oil reaches 74.71%. The solvent MeOH and EtOH in supercritical conditions could upgrade the components of the bio-oils and enhance their combustion performances. The comprehensive properties of the bio-oil from hybrid microalgae under supercritical liquefaction conditions show a potential prospect for application. In addition to this study using 3-Pyridinemethanol, there are many other studies that have used 3-Pyridinemethanol(cas: 100-55-0Quality Control of 3-Pyridinemethanol) was used in this study.

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Quality Control of 3-Pyridinemethanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts