Tag: 100-200

Contrast effect of hydrogen bonding on the acceptor and donor OH groups of intramolecularly hydrogen-bonded OH pairs in diols was written by Iwamoto, Reikichi;Matsuda, Toshihiko;Kusanagi, Hiroshi. And the article was included in Spectrochimica Acta in 2005.Product Details of 115-84-4 The following contents are mentioned in the article:

We studied the influence of hydrogen bonding on the fundamental and overtone bands of the OH-stretching vibration of each OH group in the intramolecularly hydrogen-bonded OH(I)::OH(II) pair in 1,2-, 1,3- and 1,4-diols. The hydrogen bonding between the two OH groups significantly increases in strength from the five-membered ring of a 1,2-diol to the seven-membered ring of a 1,4-diol. Although the hydrogen bonding does not affect the vibrational property of the OH(II) (or acceptor), it significantly influences the OH(I) (or donor). As the hydrogen bonding becomes stronger from a 1,2- to a 1,4-diol, the fundamental band of the OH-stretching shifts downwards by from about 50 to 140 cm^-1, and the overtone band markedly decreases in intensity, although the effect on the intensity and bandwidth of the fundamental band varies among 1,2-, 1,3- and 1,4-diols. The quantum-mech. calculated normal frequencies of the acceptor and donor OH groups in the hydrogen-bonded ring are in good agreement with the observed frequencies. The calculated interat. distance between the O of an acceptor OH and the H of a donor OH is the shortest for a 1,4-diol, which is consistent with the largest frequency shift caused by the hydrogen bonding. 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. 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. 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.Product Details of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Identification of floral scent profiles in bearded irises was written by Yuan, Yuan;Sun, Ye;Zhao, Yanchun;Liu, Chungui;Chen, Xiulan;Li, Fengtong;Bao, Jianzhong. And the article was included in Molecules in 2019.Synthetic Route of C10H22O The following contents are mentioned in the article:

Bearded irises are ornamental plants with distinctive floral fragrance grown worldwide. To identify the floral scent profiles, twenty-seven accessions derived from three bearded iris, including Iris. germanica, I. pumila and I. pallida were used to investigate the composition and relative contents of floral scent components by headspace solid-phase microextraction (HS-SPME) and gas chromatog.-mass spectrometry (GC-MS). A total of 219 floral scent components were detected in blooming flowers. The scent profile varied significantly among and within the three investigated species. Principal component anal. (PCA) indicated that terpenes, alcs. and esters contributed the most to the floral scent components and 1-caryophyllene, linalool, citronellol, Me cinnamate, β-cedrene, thujopsene, Me myristate, linalyl acetate, isosafrole, nerol, geraniol were identified as the major components. In a hierarchical cluster anal., twenty-seven accessions could be clustered into six different groups, most of which had representative scent components such as linalool, citronellyl acetate, thujopsene, citronellol, Me cinnamate and 1-caryophyllene. Our findings provide a theor. reference for floral scent evaluation and breeding of bearded irises. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Synthetic Route of C10H22O).

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. 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.Synthetic Route of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effects of different extraction methods on chemical composition of volatile oils from Anhua Fuzhuan tea was written by Hu, Jun-peng;Jia, Meng-meng;Zhu, Liang. And the article was included in Shipin Keji in 2018.Quality Control of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

The volatile oils from Anhua Fuzhuan tea has been extracted by steam distillation (SD), simultaneous distillation extraction (SDE), ultrasound-assisted extraction (UAE) and solid phase microextraction (SPME). The chem. composition of oils had been analyzed by gas chromatog. mass spectrometry (GC-MS). The result indicated that the most volatile compounds extracted by four methods were terpenes and aldehydes, ketones, acids, esters. The chem. components which were extracted by four methods were identified 86 (extracted by SD), 69 (extracted by SDE), 64 (extracted by UAE), and 81 (extracted by SPME) kinds of compounds resp. Differences exist in the aroma composition and relative content ratio. The kinds of oily volatiles extracted by steam distillation (SD) and volatile components extracted by solid phase microextraction (SPME) were more than other extracting methods, meanwhile, the two extracting methods are similar in the forms of b.p. compounds Volatile components from simultaneous distillation extraction (SDE) and ultrasound-assisted extraction (UAE) included more high-b.p. compounds This experiment provided a guidance for selecting appropriate methods for extracting and analyzing the volatile oil of Anhua Fuzhuan tea. 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. 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.Quality Control of 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The anticonvulsant action of 2,2-diethyl-1,3-propanediol and some of its homologs and esters was written by Berger, F. M.;Ludwig, B. J.. And the article was included in Journal of Pharmacology and Experimental Therapeutics in 1950.Synthetic Route of C9H20O2 The following contents are mentioned in the article:

cf. C.A. 43, 8546g. 2,2-Diethyl-1,3-propanediol (I) strongly antagonizes the convulsant and lethal effects of metrazole, strychnine, and picrotoxin. These antagonistic effects occur with doses which do not exert a hypnotic or anesthetic action. I can be effectively administered enterally or parenterally. Its duration of action is short. I does not affect spinal reflexes and has little action on the spinal cord. It acts by a depressant effect on the forebrain and midbrain. I is partly conjugated in the body as an ether type glucuronide. Another portion is oxidized to α,α-diethylhydracrylic acid (II), m. 62.5°, n⁶⁵_D 1.4458. The further oxidation product, diethylmalonic acid (III) was not found in the urine of patients receiving I. II and III in doses of 400 mg./kg. had no anticonvulsant action. The 2,2-dimethyl, 2-methyl-2-ethyl, 2-methyl-2-propyl, 2-methyl-2-isopropyl, 2-methyl-2-butyl, 2-ethyl-2-butyl, 2-ethyl-2-phenyl, 2,2-dipropyl, and 2,2-dibutyl homologs of I showed an anticonvulsant activity of a similar order to that of I. None had a longer duration of action. I diacetate had a less intense but more prolonged action than I. I monoacetate, succinate, and dibenzoate showed no advantage over I. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Synthetic Route of C9H20O2).

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. 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.Synthetic Route of C9H20O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Measurement and modelling of high pressure bubble- and dew-point data for the CO₂ + 1-decanol + 3,7-dimethyl-1-octanol system was written by Latsky, C.;Schwarz, C. E.. And the article was included in Fluid Phase Equilibria in 2019.Reference of 106-21-8 The following contents are mentioned in the article:

This work aims to characterize the solute-solute interaction which occurs in a ternary system containing CO₂ with solutes, 1-decanol and 3,7-dimethyl-1-octanol and to compare the ability of the RK-ASPEN and CPA models, available within the Aspen Plus software, to predict solubility data for this system. Bubble- and dew-point data were therefore measured for three 1-decanol + 3,7-dimethyl-1-octanol mixtures in CO₂, at temperatures between 308 K and 358 K, with pressures up to 27.5 MPa and with total solute mass fractions ranging from 0.605 to 0.015. The data were measured using the static, synthetic visual phase detection method. The measured data revealed that significant solute-solute interactions exist in the ternary system. Furthermore, in mixtures where 1-decanol dominated the mixture composition, these interactions resulted in the occurrence of a temperature inversion. The bubble- and dew-point data for the system were predicted using the RK-ASPEN and CPA models. The models were fitted using literature and exptl. data. Comparison of the prediction obtained using the RK-ASPEN and CPA models indicated that the solubility data of the ternary system can better be described using the polar-based RK-ASPEN equation of state model. 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. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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

Novel random copolymers of poly(butylene 1,4-cyclohexane dicarboxylate) with outstanding barrier properties for green and sustainable packaging: content and length of aliphatic side chains as efficient tools to tailor the material’s final performance was written by Guidotti, Giulia;Soccio, Michelina;Siracusa, Valentina;Gazzano, Massimo;Munari, Andrea;Lotti, Nadia. And the article was included in Polymers (Basel, Switzerland) in 2018.Application of 115-84-4 The following contents are mentioned in the article:

The present paper describes the synthesis of novel bio-based poly(butylene 1,4-cyclohexane dicarboxylate)-containing random copolymers for sustainable and flexible packaging applications. On one side, the linear butylene moiety has been substituted by glycol subunits with alkyl pendant groups of different length. On the other side, copolymers with different cis/trans isomer ratio of cyclohexane rings have been synthesized. The prepared samples were subjected to mol., thermal, diffractometric, and mech. characterization. The barrier performances to O₂, CO₂, and N₂ gases were also evaluated. The presence of side alkyl groups did not alter the thermal stability, whereas it significantly influences the formation of ordered phases that deeply affect the functional properties, mainly in terms of mech. response and barrier performance. In particular, the final materials present higher flexibility and significantly improved barrier properties with respect to the homopolymer and most polymers widely employed for flexible packaging. The improvement due to copolymerization was more pronounced in the case of higher co-unit-containing copolymers and for the samples with cyclohexane rings in the trans conformation. 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. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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

3D pharmacophore model for insect repellent activity and discovery of new repellent candidates was written by Bhattacharjee, Apurba K.;Dheranetra, Watanaporn;Nichols, Daniel A.;Gupta, Raj K.. And the article was included in QSAR & Combinatorial Science in 2005.Application of 115-84-4 The following contents are mentioned in the article:

To better understand the mechanism of insect repellency and to identify new repellent candidates, we performed a three-dimensional quant. structure-activity (QSAR) study and developed a pharmacophore model for potent repellent activity from a set of eleven known diverse insect repellent compounds by using the CATALYST 3D-QSAR methodol. The protection time for repellent activity of the compounds was taken from an earlier published study. The pharmacophore was found to have three hydrophobic sites (two aliphatic and one aromatic) and a hydrogen-bond acceptor site in specific locations in the three dimensional geometry of the mols. that are critical for potent repellent activity. The pharmacophore showed an excellent correlation (correlation = 0.9) between the exptl. protection time afforded by the compounds in the training set and their predicted protection time. The validity of the pharmacophore model goes beyond the list in the training set and is found to map well on a variety of other insect repellents. By mapping this model on one of the more potent analog we have generated a three-dimensional shape based template which allowed a search of our inhouse compound database and discover four new potential insect repellent candidates. 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. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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

Thioalkyl- and sulfone-substituted poly(p-phenylene vinylene)s was written by Rimmele, Martina;Ableidinger, Klaus;Marsh, Adam V.;Cheetham, Nathan J.;Taublaender, M. Josef;Buchner, Alina;Prinz, Jonathan;Froehlich, Johannes;Unterlass, Miriam M.;Heeney, Martin;Gloecklhofer, Florian. And the article was included in Polymer Chemistry in 2019.Electric Literature of C10H22O The following contents are mentioned in the article:

Poly(p-phenylene vinylene)s (PPVs) have been studied for decades, but research on this interesting class of conjugated polymers is far from being completed. New applications like in bioimaging keep emerging and even simple structural variations are still waiting to be explored. Surprisingly, not even dithioalkyl-substituted PPVs (S-PPVs) have been reported in the peer-reviewed literature, although the corresponding dialkoxy-substituted PPVs (O-PPVs) like MEH-PPV or MDMO-PPV are most frequently used and although thioalkyl substituents can improve the material properties significantly. We herein report the development of a highly efficient, scalable two-step synthesis of Gilch monomers for S-PPVs starting from low-cost 1,4-diiodobenzene. A low-temperature polymerization protocol has been developed for these monomers, affording high-mol. weight S-PPVs in excellent yields. The thermal, electrochem., and photophys. properties of S-PPVs are reported to highlight the potential of these polymers. Furthermore, treatment with dimethyldioxirane is demonstrated to result in rapid conversion into sulfone-substituted PPVs (SO2-PPVs), introducing a route to high-mol. weight SO₂-PPVs with exceptional stability and solid-state photoluminescence quantum yields of up to 0.46. 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. 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.Electric Literature of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Impact of Side-Chain Length on the Self-Assembly of Linear-Bottlebrush Diblock Copolymers was written by Liberman, Lucy;Coughlin, McKenzie L.;Weigand, Steven;Edmund, Jerrick;Bates, Frank S.;Lodge, Timothy P.. And the article was included in Macromolecules (Washington, DC, United States) in 2022.HPLC of Formula: 106-21-8 The following contents are mentioned in the article:

Diblock polymers are known to self-assemble into a variety of structures, and the effects of block mol. weights and volume fractions, along with the interactions between chem. different blocks, have been extensively studied. However, the consequences of mol. architectural differences between the blocks on phase behavior, particularly self-assembly into network morphologies, are less well explored. In this work, 223 linear-bottlebrush diblock polymers were synthesized using grafting-through living ring-opening metathesis polymerization The linear block was poly(norbornene exo,exo-dimethyl ester), while five different bottlebrush blocks were used in order of increasing side-chain length: poly(norbornene exo,exo-di-isoamyl ester), poly(norbornene exo,exo-di-3,7-dimethyloctyl ester), poly(norbornene exo,exo-di-hexahydrofarnesyl ester), poly(norbornene exo,exo-di-dihydrophytyl ester), and poly(norbornene exo,exo-di-perhydrosolanesyl ester). Diblock polymer compositions ranged from approx. 30 to 70% by volume of the linear block, with total backbone ds.p. ranging from 30 to 140, and side chains containing 5-45 carbon atoms. Phase behavior was studied in the vicinity of the double gyroid network window using a combination of small-, mid-, and wide-angle X-ray scattering. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8HPLC of Formula: 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. 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.HPLC of Formula: 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

HS-SPME-GC-MS characterization of volatile chemicals released from microwaving and conventional processing methods of fenugreek seeds and flours was written by Rajhi, Imene;Baccouri, Bechir;Rajhi, Fatma;Hammami, Jamila;Souibgui, Monia;Mhadhbi, Haythem;Flamini, Guido. And the article was included in Industrial Crops and Products in 2022.Electric Literature of C10H22O The following contents are mentioned in the article:

This study was to evaluate the effects of microwave and conventional processing methods on the aroma profiles of fenugreek seeds and flours. The volatiles of raw, sprouted, boiled, roasted, and micro-waved fenugreek grains were evaluated using headspace-solid phase micro-extraction (HS-SPME) coupled to gas chromatog.-mass spectrometry (GC-MS). 51 and 60 volatiles were detected in the emission bouquets of raw and processed seeds and flours, resp. Volatiles were divided into seven chem. classes, including monoterpenes hydrocarbons, sesquiterpenes hydrocarbons, phenylpropanoids, non-terpenes derivatives, apocarotenes, nitrogen/sulfur derivative and oxygenated monoterpenes. The data showed that volatiles were significantly affected by the type of processing. All treatments increase the amounts of volatiles including aldehydes, alcs., esters, and alkanes except for the microwave heating. Indeed, the dominant volatiles in microwaved fenugreek were pyrazines, with chocolate aroma like flavor. The microwave heating is based on an energy-efficient and water-saving technol.; it is an interesting and more sustainable technique to be employed in the legume processing. The findings of this study demonstrate that microwave technol. has potential for fenugreek processing. 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. 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. 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