Month: November 2022

The author of 《Quantification of vegetable oil in recycled paper》 were Ntifafa, Yao; Szajda-Lam, Maria; Ghosh, Ashok; Hart, Peter W.. And the article was published in Tappi Journal in 2020. Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol The author mentioned the following in the article:

Vegetable soybean oil is commonly used in cooking foods that are packaged in takeaway paperboard containers. Vegetable oil is hydrophobic, and in sufficiently high concentration, could interfere with interfiber bonding and result in paper strength loss. In order to quantify the effect of oil on the resulting paperboard strength, it is necessary to quantify the oil content in paper. A lab method was evaluated to determine the soybean oil content in paper. Handsheets were made with pulps previously treated with different proportions of vegetable oil. Pyrolysis gas chromatog.-mass spectrometry (pyGCMS) was used to quantify the amount of oil left in the handsheets. The results revealed a strong correlation between the amount of oil applied to the initial pulp and the amount of oil left in the handsheets. In addition, the effect of vegetable oils on paper strength may be affected by the cooking process. Vegetable oil is known to degrade over time in the presence of oxygen, light, and temperature The vegetable oil was put in an oven to imitate the oil lifecycle during a typical pizza cooking process. The cooked oil was then left at room temperature and not protected from air (oxygen) or from normal daylight. The heated, then cooled, oil was stored over a period of 13 wk. During this time, samples of the aged oil were tested as part of a time-based degradation study of the cooked and cooled oil. 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: 54-17-1Reference 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 the monohydrate form of the alpha isoform of D-glucopyranose, a synthetic simple monosaccharide that is used as an energy source.Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Two predicted transmembrane domains exclude very long chain fatty acyl-CoAs from the active site of mouse wax synthase》 were Kawelke, Steffen; Feussner, Ivo. And the article was published in PLoS One in 2015. SDS of cas: 591-70-8 The author mentioned the following in the article:

Wax esters are used as coatings or storage lipids in all kingdoms of life. They are synthesized from a fatty alc. and an acyl-CoA by wax synthases. In order to get insights into the structure-function relationships of a wax synthase from Mus musculus, a domain swap experiment between the mouse acyl-CoA:wax alc. acyltransferase (AWAT2) and the homologous mouse acyl-CoA:diacylglycerol O-acyltransferase 2 (DGAT2) was performed. This showed that the substrate specificity of AWAT2 is partially determined by two predicted transmembrane domains near the amino terminus of AWAT2. Upon exchange of the two domains for the resp. part of DGAT2, the resulting chimeric enzyme was capable of incorporating up to 20% of very long acyl chains in the wax esters upon expression in S. cerevisiae strain H1246. The amount of very long acyl chains in wax esters synthesized by wild type AWAT2 was negligible. The effect was narrowed down to a single amino acid position within one of the predicted membrane domains, the AWAT2 N36R variant. Taken together, we provide first evidence that two predicted transmembrane domains in AWAT2 are involved in determining its acyl chain length specificity.Octadecan-9-ol(cas: 591-70-8SDS of cas: 591-70-8) was used in this study.

Octadecan-9-ol(cas: 591-70-8) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The creation of a peptide bond to link two amino acids to make a protein removes the −OH from the carboxy group of one amino acid.SDS of cas: 591-70-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2013,Wang, Jie; Zhu, Xiao-hua; Chen, Guo-hua published 《Process improvement on the synthesis of 3-mercapto-1-(1, 3-thiazolin-2-yl) azetidine hydrochloride》.Hecheng Huaxue published the findings.Formula: C3H8ClNO The information in the text is summarized as follows:

A key intermediate of Tebipenem pivoxil, 3-mercapto-1-(1, 3-thiazolin-2-yl) azetidine hydrochloride, was synthesized from benzylamine by N-alkylation, cyclization, catalytic hydrogenation, N-protection, mesylation, SN2 substitution, hydrolysis, and condensation. The overall yield was 40%. The structure was confirmed by 1H NMR, IR and MS. The experimental process involved the reaction of Azetidin-3-ol hydrochloride(cas: 18621-18-6Formula: C3H8ClNO)

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.Formula: C3H8ClNO 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 2014,Loh, Pui Yee; Liu, Chenmin; Sow, Chorng Haur; Chin, Wee Shong published 《Coaxial hetero-nanostructures with controllable shell thickness: a “”Pore Widening”” method》.RSC Advances published the findings.Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate The information in the text is summarized as follows:

This report presents a versatile “”Pore Widening”” method that can readily lead to arrays of multi-layered one-dimensional (1D) hetero-nanostructures. Using this simple and facile method, we demonstrate that the thickness of the shell component is controllable by the degree of “”Pore Widening””. With careful selection of materials and sequences of deposition steps, a variety of polymer-metal, metal-metal and polymer-metal-metal core-shell nanowires, as well as metal oxide nanotubes and metal oxide-metal double-walled nanotubes can be successfully achieved. This opens up a possibility to tailor new properties of 1D hetero-nanostructures through the judicious combination of different core and shell components in the nanometer size regime. The experimental process involved the reaction of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate)

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. Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2017,Rapacz, Anna; Waszkielewicz, Anna M.; Panczyk, Katarzyna; Pytka, Karolina; Koczurkiewicz, Paulina; Piska, Kamil; Pekala, Elzbieta; Budziszewska, Boguslawa; Starek-Swiechowicz, Beata; Marona, Henryk published 《Design, synthesis and anticonvulsant-analgesic activity of new N-[(phenoxy)alkyl]- and N-[(phenoxy)ethoxyethyl]aminoalkanols》.MedChemComm published the findings.Name: trans-4-Aminocyclohexanol The information in the text is summarized as follows:

New derivatives of N-[(phenoxy)alkyl]- and N-[(phenoxy)ethoxyethyl]aminoalkanols have been synthesized and evaluated for their anticonvulsant activity in maximal electroshock (MES), maximal electroshock seizure threshold (MEST), and pentylenetetrazol (PTZ) tests. Their neurotoxicity was evaluated via rotarod and chimney tests. The compounds exhibiting the most beneficial activity and protection indexes were evaluated for analgesic activity using the formalin test for neurogenic pain. They were also evaluated for their influence on cytotoxic activity using in vitro cellular models (HepG2 and CRL-2534 cell lines). Experiments performed using MTT and neutral red cytotoxicity assays showed that all evaluated compounds were safe for normal, glial cells (astrocytes) and did not induce hepatotoxic effects. Based on the results from the in vitro studies, the safety of the evaluated compounds was inferred. The most promising compound in this research was 1-{2-[2-(2,3-dimethylphenoxy)ethoxy]ethyl}piperidin-3-ol hydrochloride. Addnl., in silico metabolism prediction for the compound has been performed. The results came from multiple reactions, including the reaction of trans-4-Aminocyclohexanol(cas: 27489-62-9Name: trans-4-Aminocyclohexanol)

trans-4-Aminocyclohexanol(cas: 27489-62-9) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.Name: trans-4-Aminocyclohexanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2018,Liu, Xun; Sun, Chunrui; Mlynarski, Scott; Morken, James P. published 《Synthesis and Stereochemical Assignment of Arenolide》.Organic Letters published the findings.Related Products of 78782-17-9 The information in the text is summarized as follows:

The convergent synthesis of candidate stereoisomers of the natural product arenolide was accomplished using recently developed catalytic boron-based reactions. Comparison of the spectral data for candidate structures with that reported for the authentic natural product revealed the likely stereostructure of the natural compound After reading the article, we found that the author used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Related Products of 78782-17-9)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Related Products of 78782-17-9 Organoboron compounds are versatile intermediates and as such are some of the most important classes of reagents in modern organic chemistry. This stems from their ease of preparation combined with their ability to undergo a broad range of chemical transformations.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2018,Liu, Ning; Li, Tian-tian; Yu, Hui; Xia, Long published 《Fabrication of a Disordered Mesoporous ZnO Matrix Modified by CuO Film as High-Performance NOx Sensor》.ChemistrySelect published the findings.Related Products of 6381-59-5 The information in the text is summarized as follows:

Herein, the ZnO matrix with disordered mesoporous (disordered mesoporous ZnO, DM-ZnO) was prepared by sol-gel template method. For the first time, a layer Cu thin film was coated on the surface of the DM-ZnO matrix to increase the conductivity of matrix by chem. deposition method (CDM), an electro-deposition method (EDM) was creatively used to thicken the Cu thin film, a layer CuO thin film was coated on the surface of the DM-ZnO matrix by the high temperature calcination method, and an n-p heterojunction disordered mesoporous CuO/ZnO composite (CZC) was fabricated. The morphol., structure and gas sensing performance toward NOx of the CZC sample were characterized. The CZC sample showed the flower-like structures which were composed of petaloid particles, and the particles length was about 450 nm, the width was about 150 nm, and the disordered mesoporous distributed on the surface of the particles, the pore size was about 2.1 nm. Many sensors at high temperatures have been reported in the literature, however, sensors at high temperature had much drawbacks. The CZC sample showed the much higher gas response property to NOx at room temperature, whose response to 100 ppm NOx gas reached to 11.73, the response time was only 11.5 s, and the detection limit was only 0.5 ppm. And the prepared material had an expansive application prospect in toxic gas detection field. In the experiment, the researchers used many compounds, for example, Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Related Products of 6381-59-5)

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. Related Products of 6381-59-5 Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Green Chemistry included an article by Wei, Zheyu; Ru, Shi; Zhao, Qixin; Yu, Han; Zhang, Gang; Wei, Yongge. Category: alcohols-buliding-blocks. The article was titled 《Highly efficient and practical aerobic oxidation of alcohols by inorganic-ligand supported copper catalysis》. The information in the text is summarized as follows:

The oxidation of alcs. to aldehydes or ketones is a highly relevant conversion for the pharmaceutical and fine-chem. industries, and for biomass conversion, and is commonly performed using stoichiometric amounts of highly hazardous oxidants. The aerobic oxidation of alcs. with transition metal complex catalysts previously required complicated organic ligands and/or nitroxyl radicals as co-catalysts. Herein, we report an efficient and eco-friendly method to promote the aerobic oxidation of alcs. using an inorganic-ligand supported copper catalyst 1, (NH4)4[CuMo6O18(OH)6], with O2 (1 atm) as the sole oxidant. Catalyst 1 is synthesized directly from cheap and commonly available (NH4)6Mo7O24·4H2O and CuSO4, which consists of a pure inorganic framework built from a central CuII core supported by six MoVIO6 inorganic scaffolds. The copper catalyst 1 exhibits excellent selectivity and activity towards a wide range of substrates in the catalytic oxidation of alcs., and can avoid the use of toxic oxidants, nitroxyl radicals, and potentially air/moisture sensitive and complicated organic ligands that are not com. available. Owing to its robust inorganic framework, catalyst 1 shows good stability and reusability, and the catalytic oxidation of alcs. with catalyst 1 could be readily scaled up to gram scale with little loss of catalytic activity, demonstrating great potential of the inorganic-ligand supported Cu catalysts in catalytic chem. transformations. The experimental process involved the reaction of (4-Bromophenyl)methanol(cas: 873-75-6Category: alcohols-buliding-blocks)

(4-Bromophenyl)methanol(cas: 873-75-6) undergoes three-component reaction with acetylferrocene and arylboronic acid to give ferrocenyl ketones containing biaryls.Category: alcohols-buliding-blocks It undergoes efficient trimethylsilylation reaction with 1,1,1,3,3,3-hexamethyldisilazane in the presence of catalytic amount of aspartic acid in acetonitrile.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Synthesis included an article by Kawano, Teruhiro; Watari, Ryo; Kayaki, Yoshihito; Ikariya, Takao. SDS of cas: 100-55-0. The article was titled 《Catalytic Hydrogenation of Carboxamides with a Bifunctional Cp*Ru Catalyst Bearing an Imidazol-2-ylidene with a Protic Aminoethyl Side Chain》. The information in the text is summarized as follows:

Synthesis of a Cp*Ru complex bearing an NH2-functionalized N-heterocyclic carbene (C-NH) I (R = CH3) was achieved by treatment of Cp*RuBr(isoprene) with an equimolar amount of a silver complex, which was generated from Ag2O and 1-(2-aminoethyl)-3-methylimidazolium bromide, in CH3CN at room temperature The new Cp*RuBr(C-NH) complex I showed a higher catalytic performance than the related Cp*RuCl(P-NH) and Cp*RuCl(N-NH) complexes. In the reaction of N-arylcarboxamides R1C(O)NR2R3 (R1 = H, C6H5, pyridin-3-yl; R2 = R3 = CH3; R2 = H, R3 = C6H5; R2R3 = -C(O)(CH2)3-, etc.), the amine products R2R3NH were obtained in satisfactory yields under mild temperature conditions. In the part of experimental materials, we found many familiar compounds, such as 3-Pyridinemethanol(cas: 100-55-0SDS of cas: 100-55-0)

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine is widely used in the precursor to agrochemicals and pharmaceuticals. Also, it is used as an important reagent and organic solvent.SDS of cas: 100-55-0

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,ACS Omega included an article by Waiba, Satyadeep; Das, Animesh; Barman, Milan K.; Maji, Biplab. Formula: C6H7NO. The article was titled 《Base Metal-Catalyzed Direct Olefinations of Alcohols with Sulfones》. The information in the text is summarized as follows:

Herein, a base-metal nickel-catalyzed direct olefination of alcs. with sulfones is reported. The reaction operates under low catalyst loading and does not require an external redox reagent. A wide range of trans-stilbenes and styrenes were synthesized in good yields and selectivities. Biol. active stilbene DMU-212 could also be synthesized in a single step under these conditions. Mechanistic studies involving kinetic isotope effect, deuterium labeling experiments, and catalytic and stoichiometric reactions with possible catalytic intermediates were performed to elucidate a plausible mechanism. The results came from multiple reactions, including the reaction of 3-Pyridinemethanol(cas: 100-55-0Formula: C6H7NO)

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.Formula: C6H7NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts