Tag: 100-200

Analysis of aroma components in fruit development period of “muscat” was written by Zhang, Cun-zhi;Liu, Jing;Zhang, Hong;Wei, Peng;Zhang, Hong-sheng;Cheng, Qian. And the article was included in Anhui Nongye Kexue in 2022.Product Details of 106-21-8 The following contents are mentioned in the article:

Headspace solid phase microextraction (HSPME) was used to extract the aroma components from six different development stages of grape, and the components were determined and analyzed by gas chromatog.-mass spectrometry (GC-MS) to reveal the change rule of aroma components and content in different development stages. The results showed that 60 kinds of aroma components were detected in the grape fruits of “Muscat”, and the aroma components and their contents varied greatly in different development stages of the fruit. Among them, the most changed linalool, the relative content increased rapidly from 3.24% in the late color transition period to 55.26% in the maturity period, followed by C₁₃ alkanes, the relative content surged from 1.63% in the pre-color conversion to 18.84% in the late color conversion stage, an increase of 10.56 times, then rapidly decreased, and disappeared in the maturity period, which was neg. correlated with the change of linalool. Terpenoids were the main aroma of “Muscat” grapes, of which linalool was the most important component, and the pre-color transition-the late color transition was the synthesis period of the precursor substances of the aroma components. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Product Details of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Product Details of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Comprehensive evaluation on volatile components in ozone and ultraviolet combined treatment Lycium barbarum based on principal component analysis was written by Gong, Yuan;Wang, Xu;Liao, Ruo-yu;Xu, Meng-xia;Liu, Dun-hua. And the article was included in Shipin Gongye Keji in 2015.Application In Synthesis of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

In order to study on the effects of volatile components in ozone and UV combined treatment Lycium barbarum, the volatile components in samples with different processing methods were extracted by headspace-solid and anal. by gas chromatog. mass spectrometry (GC-MS). The anal. and evaluation on the volatile components by the principal components anal. (PCA) and cluster anal. (CA). The results indicated that seventy-eight volatile components were identified from Lycium barbarum with different processing methods, including 14 kinds of esters, 21 kinds of alcs., 16 kinds of olefins, 15 kinds of ketones, 5 kinds of aldehydes, 3 kinds of acids, 4 kinds of ethers and HCAS. Ten volatile components were common to these Lycium barbarum samples. PCA anal. identified 42 main volatile components. Combining with clustering anal. comprehensive evaluation that the flavor of volatile components descending order was after of combined treatment of Ozone and UV drying Lycium barbarum>after of combined treatment of Ozone and UV and vacuum dried Lycium barbarum>dried Lycium barbarum>fresh Lycium barbarum. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Application In Synthesis of 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Application In Synthesis of 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

High-Capacity Digital Polymers: Storing Images in Single Molecules was written by Laurent, Eline;Amalian, Jean-Arthur;Parmentier, Marie;Oswald, Laurence;Al Ouahabi, Abdelaziz;Dufour, Florent;Launay, Kevin;Clement, Jean-Louis;Gigmes, Didier;Delsuc, Marc-Andre;Charles, Laurence;Lutz, Jean-Francois. And the article was included in Macromolecules (Washington, DC, United States) in 2020.Name: 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

High-capacity digital poly(phosphodiester)s were synthesized by stepwise automated phosphoramidite chem. Coding libraries containing either 4 or 8 phosphoramidite monomers of different mass were used to encode the polymers, thus enabling storage densities of 2 or 3 bits/monomer, resp. In addition, a monomer containing a cleavable alkoxyamine and nucleotide mass tags enabling fragment identification were included in the chains to allow their decryption by electrospray pseudo-MS³ sequencing. As a proof of concept, black and white images with sizes ranging from 80 to 144 pixels were encoded in single polymer chains and decoded by mass spectrometry. Six different polymers were prepared in this work; three with the 4-monomer alphabet and three with the 8-monomer alphabet. In all cases, uniform macromols. were obtained and deciphered. Yet, the bulkiest monomers of the 8-symbol alphabet required optimized protocols for uniform polymer synthesis. A macromol. storage capacity of 144 bits per chain was obtained in this work, which is the highest capacity ever attained for a synthetic informational polymer. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Name: 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Name: 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Visual detection of odorant geraniol enabled by integration of a human olfactory receptor into polydiacetylene/lipid nano-assembly was written by Kim, Taegon;Moon, Dongseok;Park, Jin Hyuk;Yang, Heehong;Cho, Seongyeon;Park, Tai Hyun;Ahn, Dong June. And the article was included in Nanoscale in 2019.Application In Synthesis of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

A new polydiacetylene lipid/human olfactory receptor nano-assembly was fabricated for the visual detection of an odorant for the first time. The assembly consisted of phospholipid-mixed polydiacetylenes (PDAs) and human olfactory receptors (hORs) in detergent micelles. To overcome the limitations of bioelectronic noses, hOR-embedded chromatic complexes (PDA/hORs) were developed, introducing PDAs that showed color and fluorescence transitions against various stimuli. The chromatic nanocomplexes reacted with target mols., showing a fluorescence intensity increase in a dose-dependent manner and target selectivity among various odorants. As a result, a color transition of the assembly from blue to purple occurred, allowing the visual detection of the odorant geraniol. Through CD (CD) spectroscopy and a tryptophan fluorescence quenching method, the structural and functional properties of the hORs embedded in the complexes were confirmed. Based on this first work, future array devices, integrating multiple nano-assemblies, can be substantiated and utilized in environmental assessment and anal. of food quality. 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. 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. 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.Application In Synthesis of 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Compatibility of arthropod repellents with certain functional finishes of cotton uniform fabric was written by Markarian, Haig;Pratt, John J. Jr.;DeMorco, Carlo G.;Gouck, Harry K.. And the article was included in Journal of Economic Entomology in 1968.Reference of 115-84-4 The following contents are mentioned in the article:

The compatibility of various insect repellents in combination with 2 water repellents, 2 detoxicants for chem. warfare agents, and a fire retardant impregnated into a standard Army cotton cloth was studied. The water repellant, Quarpel, increased the stability of the insect repellents, M-1960 [30% 2-butyl-2-ethyl-1,3-propanediol, 30% N-butylacetanilide, 30% benzyl benzoate, 10% poly(oxyethylene)(20)sorbitan monooleate] and benzyl benzoate to washing and showed a slightly increased stability of deet to rinsing. However all 3 of the insect repellents decreased the water repellency of Quarpel and removed the water repellency of a quaternary ammonium compound Effectiveness of a detoxicant for chem. warfare agents was enhanced when combined with either M-1960 or deet. Duration of effective mosquito repellency of M-1960 was decreased by the detoxicant for chem. warfare agents, while duration of effective tick repellency was increased. A fire retardant slightly enhanced the stability of M-1960 to washing but decreased its duration of effective mosquito and tick repellency. Fire retardancy was not affected. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Reference of 115-84-4).

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.Reference of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Aroma components of Zijuan tea processed by four different methods was written by Chen, Bao;Jiang, Dong-hua;Luo, Fa-mei;Man, Hong-ping;Luo, Zheng-gang;Hu, Yan-ping;Yang, Liu-xia. And the article was included in Xiandai Shipin Keji in 2013.Application of 115-84-4 The following contents are mentioned in the article:

The aroma components of Zijuan tea processed by different methods (sun-dry tea, baked green tea, black tea and fermented tea) were extracted by solid phase micro-extraction (SPME), quantified by gas chromatog./mass spectrometry (GC-MS) and quantified by area normalization method. The results showed that 146 compounds were identified from different processed Zijuan Tea, including 81 compounds from sun-dry tea, 80 from baked green tea, 68 from black tea, 69 from fermented tea, and 30 from all the samples tested. The main aroma compounds of sun-dry tea were l-Octen-3-ol, 2-ethyl-Hexanol, Hotrienol, and β-Terpineol, etc. The main aroma compounds of baked green tea were linalool, 2-ethyl-hexanol, benzyl alc., l-octen-3-ol, etc. The main aroma compounds of black tea were linalool, epoxylinalol, cis-linalool oxide, and benzyl alc. The main aroma compounds of fermented tea were 1, 2, 3-trimethoxybenzene, epoxylinalol, cis-linalool oxide, and 2-ethyl-hexanol. In summary, there were significant differences in composition and content of aroma compounds of different processed Zijuan tea extracted by SPME. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Application of 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. 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.Application of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

A rapid method for screening and evaluating mosquito repellents was written by Bar-Zeev, Micha. And the article was included in Bulletin of Entomological Research in 1962.Safety of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

Candidate repellents are rapidly screened and evaluated by comparing them with a standard repellent or with each other. Mosquitoes are confined in a Petri dish covered with mosquito gauze and the bottom is lined with 2 semicircular filter papers, 1 of which is treated with a standard repellent and the other with a test compound The dish is placed in an apparatus through which passes a low stream of air. Counts are taken every 30 sec. on and above the halves of the dish, which is jarred after every 2nd count to change the position of the insects; a total of 40 counts is taken. The index of reaction is the mean excess of position records for the candidate over those for the standard. In tests against Aedes aegypti, the repellency of N,N-diethyl-m-toluamide and of O-chloro-N,N-diethylbenzamide did not differ, but each significantly exceeded that of di-Me phthalate (DMP). The loss of repelleney of DMP with time was approx. linear. DMP was superior to ethyl-1,3-hexanediol, Pr N,N-diethylsuccinamate, and indalone, and equal to dimethyl carbate, hexyl mandelate, and 2-butyl-2-ethyl-1,3-propanediol. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Safety of 2-Butyl-2-ethylpropane-1,3-diol).

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. 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.Safety of 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sulfamyl radicals direct photoredox-mediated Giese reactions at unactivated C(3)-H bonds was written by Kanegusuku, Anastasia L. G.;Castanheiro, Thomas;Ayer, Suraj K.;Roizen, Jennifer L.. And the article was included in Organic Letters in 2019.Name: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

In the presence of the photoredox catalyst [Ir(dF(CF₃)ppy)₂(dtbbpy)]PF₆ and K₂CO₃ in MeCN under blue light irradiation and without oxygen, sulfamates such as I underwent chemoselective and regioselective Giese reactions with α,β-unsaturated carbonyl compounds via 1,6-H abstraction to yield functionalized esters such as II. The disclosed method relies on photoredox catalysts to drive the oxidation of alc.-anchored sulfamate esters to sulfamyl radicals; the sulfamyl radicals template otherwise rare 1,6-hydrogen-atom transfer (HAT) processes via seven-membered transition states to enable C(3)-H functionalization during Giese reactions. The transformation uses a catalytic oxidant rather than a stoichiometric oxidant or prefunctionalized reactant. Tertiary and secondary C(sp³) carbon atoms were alkylated with synthetically useful efficiencies. Reaction of a sulfamate with di-Et acetylenedicarboxylate followed by substitution with nucleophiles allowed the conversion of a product sulfamate into other readily manipulated derivatives This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Name: 3,7-Dimethyloctan-1-ol).

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. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Name: 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Microwave-Assisted Ultrafast RAFT Miniemulsion Polymerization of Biobased Terpenoid Acrylates was written by Castagnet, Thibault;Ballard, Nicholas;Billon, Laurent;Asua, Jose M.. And the article was included in Biomacromolecules in 2020.Formula: C10H22O The following contents are mentioned in the article:

There is a growing preference to move away from traditional petrochem.-based polymers toward biobased alternatives. Here, we report the microwave-assisted RAFT polymerization of several terpenoid acrylates (tetrahydrogeraniol, cyclademol, nopol, and citronellol). These biobased monomers give polymers with a broad range of glass transition temperatures and are excellent candidates to substitute oil-based (meth)acrylates in applications such as coatings and adhesives. First, the process was studied in miniemulsion, finding that all terpenoid acrylates showed a substantial increase in both polymerization rate and reaction control when microwave irradiation was applied. These observations were attributed to nonthermal microwave effects, namely, to changes in the kinetic coefficients under irradiation The reactions were also carried out in solution, where an amplified nonthermal microwave effect was observed The results indicate that nonthermal microwave effects allow RAFT polymerization of these terpenoid acrylates to proceed with both improved control and at higher polymerization rates compared to using conventional heating. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Formula: C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Formula: C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Equilibrium behavior of boric acid extracted by aliphatic 1,3-diols was written by Xiong, Yan;Bao, Zongbi;Xing, Huabin;Su, Baogen;Yang, Yiwen;Ren, Qilong. And the article was included in Huagong Xuebao (Chinese Edition) in 2012.SDS of cas: 115-84-4 The following contents are mentioned in the article:

Solvent extraction based on aliphatic 1,3-diols is a promising technique for the recovery of boric acid from salt lake brine. In this work, two diols, 2-ethyl-1,3-hexanediol (EHD) and 2-butyl-2-ethyl-1,3-propanediol (BEPD) were selected as extractants and toluene was used as diluents. The effects of extractant concentration, pH of brine, initial boric acid concentration, magnesium chloride concentration, and temperature on the distribution coefficients of boric acid were systematically investigated. Distribution coefficients of boric acid up to 9.43 and 8.25 were obtained from the boric acid aqueous solutions with the initial concentration of 0.0185 mol·L^-1 when using toluene containing 0.4 mol·L^-1 EHD and BEPD, resp., as organic phases at 303.15 K. Higher extractant concentration or lower pH is favorable to the extraction However, the distribution coefficients decrease gradually with the increase of boric acid concentration and temperature The extraction of boric acid with aliphatic 1,3-diols is an exothermic process. The salting-out effect of magnesium chloride enhances the extraction performance. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4SDS of cas: 115-84-4).

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.SDS of cas: 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts