Tag: 100-200

Hydrogenation of Citral to Citronellal Catalyzed by Waste Fluid Catalytic Cracking Catalyst Supported Nickel was written by Huang, Yingying;Qiu, Shiming;Xu, Jianben;Lian, Huan. And the article was included in ACS Omega in 2021.Reference of 106-21-8 The following contents are mentioned in the article:

In this paper, a waste fluid catalytic cracking (FCC) catalyst is used as a carrier to prepare a supported non-noble metal nickel catalyst (Ni/wFCC), which is applied to the selective hydrogenation of citral to citronellal. X-ray powder diffraction, Fourier transform IR spectroscopy, and SEM were used to analyze the structural characteristics of the Ni-loaded sample. The catalyst after loading Ni still maintained a good zeolite structure, and the surface impurities were reduced. The effect of reaction conditions on the Ni/wFCC-catalyzed hydrogenation of citral to citronellal was investigated, and the optimal reaction conditions were obtained as follows: a Ni loading of 20 wt %, a catalyst amount of 5.6%, a hydrogenation temperature of 180°C, a hydrogenation time of 90 min, and a hydrogenation pressure of 3.0 MPa. Under these conditions, the conversion of citral and selectivity of citronellal were 98.5 and 86.6%, resp., indicating that the Ni/wFCC catalyst had strong catalytic activity and selectivity. This research provided new ideas for the recycling of waste FCC catalysts and industrial synthesis of citronellal. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Reference of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Reference of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Evaluation of repellents against mosquitoes in Panama was written by Gilbert, I. H.;Gouck, H. K.. And the article was included in Florida Entomologist in 1955.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

Protection time for skin applications of dimethyl phthalate (I) is 304 min. Protection time in min. for other compounds and mixtures is allyl mandelate 387; 1-(o-methoxyphenyl)-3-buten-1-ol 366; propyl mandelate 362; α-tert-butylpiperonyl alc. 361; o-ethoxy-N,N-diethylbenzamide (II) 356; N,N-diethyl-m-toluamide 349; amyl mandelate 344; N,N-diethyl-o-toluamide 332; dimethyl carbate (III) 318; 2-ethyl-1,3-hexanediol (IV) 313; propyl ester of N,N-diethylsuccinamic acid (V) 311; o-chloro-N,N-diethylbenzamide (VI) 308; 2-[2-(2-butoxyethoxy)ethoxy]ethyl senecioate 291; citral-malonic acid condensate Number 1 259; 60% I, 20% IV, and 20% indalone 328; 50% IV and 50% II 346; 40% I, 30% IV, and 30% V 325; 40% IV, 30% V, and 30% VI 318; 40% I, 30% IV, and 30% III 305; 16% I, 12% IV, 12% III, 10% ZnO, 10% Delta Prime (VII), 0.75% Veegum (VIII), 3% Span 80 (IX), 2% Tween 80 (X), and 34.25% H₂O 195; and 16% I, 12% IV, 12% III, 10% ZnO, 10% VII, 2.4% IX, 1.6% X, 0.25% VIII, 1.75% Pluronic F-68, and 34% H₂O 180. Addition of a few percent of α-cyano-2-furanacrylate to I and II of the above mixtures slightly increases protection time. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Quality Control of 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Determination of acid value, hydroxyl value and water content in reactions between dicarboxylic acids and diols using near-infrared spectroscopy and non-linear partial least squares regression was written by Heikka, Riitta A.;Immonen, Kirsi T.;Minkkinen, Pentti O.;Paatero, Erkki Y. O.;Salmi, Tapio O.. And the article was included in Analytica Chimica Acta in 1997.HPLC of Formula: 115-84-4 The following contents are mentioned in the article:

A predictive calibration model based on non-linear partial least squares (PLS) regression was developed to describe the relationship between the near-IR (NIR) reflectance spectra and the acid value, hydroxyl value, and water content in polyesterification of dicarboxylic acids with diols. Two dicarboxylic acids and six diols were tested in different combinations with one dicarboxylic acid and one diol at a time. Reactions were carried out isothermally in a laboratory scale semi-batch reactor at 140-190°. NIR spectrometry offered a fast in-line method for monitoring and controlling the polyesterification reaction. A predictive model which related all the NIR spectra and the measured acid values was developed. Calibration of the NIR spectra and the hydroxyl value succeeded in experiments in which the hydroxyl value was determined The measured water content and the NIR spectra could not be calibrated with the same model for different dicarboxylic acid and diol combinations. Principal component anal. (PCA) was used to classify the NIR spectra. The spectra could be classified according to the dicarboxylic acid and diol used in the experiment This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4HPLC of Formula: 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.HPLC of Formula: 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

High Pressure Vapor-Liquid Equilibrium Data for the Quaternary Carbon Dioxide + 1-Decanol + 3,7-Dimethyl-1-octanol + n-Dodecane System was written by Latsky, Carla;Schwarz, Cara E.. And the article was included in Journal of Chemical & Engineering Data in 2019.Application of 106-21-8 The following contents are mentioned in the article:

Vapor-liquid equilibrium (VLE) data were measured for the quaternary system containing CO₂, n-dodecane (nC₁₂), 1-decanol (C₁₀OH), and 3,7-dimethyl-1-octanol (37DM1O). The data were measured using a previously constructed static-analytic setup at temperatures between 308 and 348 K and pressures up to 19.2 MPa. The measured data indicated signs of a temperature inversion in the 1-decanol-rich mixtures The relative solubility anal. revealed that the components in the 1-decanol-rich mixtures could be separated with greater ease than the components in the n-dodecane-rich mixture The greater difficulty associated with separating components in the n-dodecane-rich mixture is likely linked to cosolvency effects which cause pinches in separation The data were modeled in Aspen Plus, using the RK-ASPEN model. The modeling results highlighted the need for fitted solute-solute interaction parameters. However, even with the inclusion of these parameters there still exists significant deviation between the exptl. and predicted data. The RK-ASPEN model can, therefore, only be used to approx. VLE data for the system. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Application of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Application of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Thermomechanical Formation-Structure-Property Relationships in Photopolymerized Copper-Catalyzed Azide-Alkyne (CuAAC) Networks was written by Baranek, Austin;Song, Han Byul;McBride, Mathew;Finnegan, Patricia;Bowman, Christopher N.. And the article was included in Macromolecules (Washington, DC, United States) in 2016.Computed Properties of C9H20O2 The following contents are mentioned in the article:

Bulk photopolymerization of a library of synthesized multifunctional azides and alkynes was carried out toward developing structure-property relationships for CuAAC-based polymer networks. Multifunctional azides and alkynes were formulated with a copper catalyst and a photoinitiator, cured, and analyzed for their mech. properties. Material properties such as the glass transition temperatures (T_g) show a strong dependence on monomer structure with T_g values ranging from 41 to 90 °C for the series of CuAAC monomers synthesized in this study. Compared to the triazoles, analogous thioether-based polymer networks exhibit a 45-49 °C lower T_g whereas analogous monomers composed of ethers in place of carbamates exhibit a 40 °C lower T_g. Here, the formation of the triazole moiety during the polymerization represents a critical component in dictating the material properties of the ultimate polymer network where material properties such as the rubbery modulus, crosslink d., and T_g all exhibit strong dependence on polymerization conversion, monomer composition, and structure postgelation. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Computed Properties of C9H20O2).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Computed Properties of C9H20O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

A Bartonella Effector Acts as Signaling Hub for Intrinsic STAT3 Activation to Trigger Anti-inflammatory Responses was written by Sorg, Isabel;Schmutz, Christoph;Lu, Yun-Yueh;Fromm, Katja;Siewert, Lena K.;Bogli, Alexandra;Strack, Kathrin;Harms, Alexander;Dehio, Christoph. And the article was included in Cell Host & Microbe in 2020.Product Details of 115-84-4 The following contents are mentioned in the article:

Chronically infecting pathogens avoid clearance by the innate immune system by promoting premature transition from an initial pro-inflammatory response toward an anti-inflammatory tissue-repair response. STAT3, a central regulator of inflammation, controls this transition and thus is targeted by numerous chronic pathogens. Here, we show that BepD, an effector of the chronic bacterial pathogen Bartonella henselae targeted to infected host cells, establishes an exceptional pathway for canonical STAT3 activation, thereby impairing secretion of pro-inflammatory TNF-α and stimulating secretion of anti-inflammatory IL-10. Tyrosine phosphorylation of EPIYA-related motifs in BepD facilitates STAT3 binding and activation via c-Abl-dependent phosphorylation of Y₇₀₅. The tyrosine-phosphorylated scaffold of BepD thus represents a signaling hub for intrinsic STAT3 activation that is independent from canonical STAT3 activation via transmembrane receptor-associated Janus kinases. We anticipate that our findings on a mol. shortcut to STAT3 activation will inspire new treatment options for chronic infections and inflammatory diseases. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Product Details of 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Product Details of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Continuous flow synthesis of menthol via tandem cyclisation-hydrogenation of citronellal catalysed by scrap catalytic converters was written by Zuliani, Alessio;Cova, Camilla Maria;Manno, Roberta;Sebastian, Victor;Romero, Antonio A.;Luque, Rafael. And the article was included in Green Chemistry in 2020.Application In Synthesis of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

A continuous flow synthesis of menthol starting from citronellal catalyzed by scrap catalytic converters is reported. The reaction was conducted in a tandem system connecting in series two catalytic systems, with the first having Lewis acid properties (favoring the cyclization of citronellal to isopulegols) and the second having hydrogenation catalytic activity (catalyzing the hydrogenation of isopulegols to menthols). A Lewis acid catalyst was prepared by supporting iron oxide nanoparticles over a waste material, i.e. the ceramic core of scrap catalytic converters (SCATs) via a microwave assisted method. Most importantly, SCATs, containing a low residual noble metal content, could be directly employed in the second step as hydrogenation catalysts. The reaction was performed studying the influence on the yield and selectivity to (-)-menthol of various reaction parameters (T, p and flow rate). Under the best reaction conditions (at a flow rate of 0.1 mL min^-1 and at 373 K and 413 K for cyclization and hydrogenation steps resp.) a conversion of >99% of (+)-citronellal to (-)-menthol with 77% final yield was achieved. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Application In Synthesis of 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Application In Synthesis of 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Biosourced terpenoids for the development of sustainable acrylic pressure-sensitive adhesives via emulsion polymerisation was written by Droesbeke, Martijn A.;Simula, Alexandre;Asua, Jose M.;Du Prez, Filip E.. And the article was included in Green Chemistry in 2020.Quality Control of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

The increasing regulations and restrictions in favor of a biobased and sustainable community could potentially harm the strong economic position of the polymer industry, which still heavily relyies on crude oil. The adhesive industry, in particular, is looking for more renewable alternatives and more environmentally friendly synthesis routes. In this work, (meth)acrylate derivatives of terpenoids, namely tetrahydrogeraniol, citronellol, menthol and isoborneol are introduced in the synthesis of waterborne pressure-sensitive adhesives (PSA) based on acrylic latexes via emulsion polymerization This industrially implemented setting enables the preparation of five different formulations with high biobased content with a renewable carbon content ranging from 70 to 100%. The biobased PSAs are found to be comparable in terms of tack, peel strength and shear resistance to a benchmark petroleum-derived com. product. They show good adhesion properties on steel, glass and polyethylene surfaces. Moreover, the various formulations displayed different mech. and adhesion properties, which make them attractive for a wide range of applications. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Quality Control of 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Quality Control of 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

BEPD (2-butyl-2-ethyl-1, 3-propanediol): A branched diol for high performing polyesters for coil coatings was written by Sorensen, Kent;Bernquist, Henrik;Ramakrishnan, S.;Saindane, Bhushan. And the article was included in Paintindia in 2013.HPLC of Formula: 115-84-4 The following contents are mentioned in the article:

Coil coating pre-coated metal, is a growing coating technol. due to its economic and sustainable advantages. The coating not only needs to be flexible enough so that it can be post-formed, but also give hardness, weather resistance, corrosion protection and be decorative. Polyesters are the workhorse resin for coil coatings and offer an economical coating with a very good performance balance overall, but the level of performance also depends on the monomer composition used. BEPD is an attractive choice here for achieving high quality polyesters due to its neo-structure and large bulky side-groups. The absence of βhydrogens improves the stability of the polyester when exposed to environmental factors and it also improves the thermal stability. Bulky side-groups protect the ester bonds against hydrolysis, break the crystallinity tendency without sacrificing the performance, introduce flexibility and give some lower viscosity to the coatings. The bulky side-groups do not give any prolonged esterification time as might have been expected. In this paper BEPD is compared with other glycols, e.g., neopentylglycol in coil polyesters. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4HPLC of Formula: 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.HPLC of Formula: 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Transition-metal-free formal cross-coupling of aryl methyl sulfoxides and alcohols via nucleophilic activation of C-S bond was written by Li, Guolin;Nieves-Quinones, Yexenia;Zhang, Hui;Liang, Qingjin;Su, Shuaisong;Liu, Qingchao;Kozlowski, Marisa C.;Jia, Tiezheng. And the article was included in Nature Communications in 2020.Electric Literature of C10H22O The following contents are mentioned in the article:

A transition-metal-free cross-coupling strategy utilizing aryl(heteroaryl) Me sulfoxides R¹S(O)Me (R¹ = Ph, 4-NCC₆H₄, 2-naphthyl, 3-pyridyl, 2-benzimidazolyl, etc.) and alcs. R²OH (R² = Me, i-Pr, 2-cyclohexylethyl, 1-adamantylmethyl, etc.) to afford alkyl aryl(heteroaryl) ethers R¹OR² is reported. Two drug mols. were successfully prepared using this protocol as a key step and emphasized its potential utility in medicinal chem. A DFT computational study suggests that the reaction proceeds via initial addition of the alkoxide to the sulfoxide. This adduct facilitates further intramol. addition of the alkoxide to the aromatic ring wherein charge on the aromatic system is stabilized by the nearby potassium cation. Rate-determining fragmentation then delivers Me sulfenate and the aryl or heteroaryl ether. This study establishes the feasibility of nucleophilic addition to an appended sulfoxide as a means to form a bond to aryl(heteroaryl) systems and this modality is expected to find use with many other electrophiles and nucleophiles leading to new cross-coupling processes. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Electric Literature of C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Electric Literature of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts