Tag: 100-200

Characteristics of Gases Emitted from Chicken Manure Wastewater and Potential Effects on Human Health was written by Fakkaew, Krailak;Kongkratoke, Sitang;Tantrakarnapa, Kraichat;Polprasert, Chongrak;Sudsandee, Suntorn. And the article was included in Environmental Science and Pollution Research in 2022.Name: Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

Hazardous and odorous gas emissions from chicken manure wastewater are a public preoccupation. Odor composition measurements are crucial steps to provide appropriate air pollution control measures and design strategies to minimize the human health impact. In this study, chicken manure wastewater samples were extensively analyzed in a closed system by a portable handheld gas detector to characterize the odor and chem. compositions A portable detector was calibrated prior to sampling. The total number of 153 chem. compounds found in the chicken manure wastewater samples had various olfactory characteristics, including strong, pleasant, and odorless smells. Depending on the route of exposure, most of these chem. compounds could cause human health effects, such as irritation, burns, and severe symptoms including carcinogenic. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Name: Ethyl 3-ethoxypropanoate).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Name: Ethyl 3-ethoxypropanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Nano-silica melamine trisulfonic acid as an efficient and reusable heterogeneous catalyst in esterification reactions was written by Javaherian, Mohammad;Latifi, Saeideh;Heidarizadeh, Fariba. And the article was included in Journal of the Iranian Chemical Society in 2022.COA of Formula: C10H20O2 The following contents are mentioned in the article:

The use of nano-silica melamine trisulfonic acid as a reusable heterogeneous solid acid catalyst in the esterification reaction of carboxylic acids and alcs. is reported. The reaction conditions were optimized by testing temperature, each component of catalyst, feedstock ratios as well as load of catalyst. The synthesized catalyst was characterized by X-ray diffraction, SEM, Fourier transform IR spectroscopy, and thermogravimetric anal. techniques. The results showed that nano-silica melamine trisulfonic acid was an efficient dehydrating agent in the condensing reactions between different kinds of aliphatic and aromatic carboxylic acids and alcs. The method was simple, rapid, straightforward, catalyst reusability, and holds potential for further application in acid-catalyzed organic synthesis and industrial requirements. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1COA of Formula: C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. COA of Formula: C10H20O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Base-controlled chemoselectivity reaction of vinylanilines with isothiocyanates for synthesis of quinolino-2-thione and 2-aminoquinoline derivatives was written by Zhang, Xi;Wang, Tong-Lin;Huo, Cong-De;Wang, Xi-Cun;Quan, Zheng-Jun. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2018.Formula: C4H7NS The following contents are mentioned in the article:

A base-controlled chemo-selective reaction of vinylanilines with alkyl/aryl isothiocyanates to afford quinoline-2-thione and 2-aminoquinoline derivatives, is reported/. Quinoline-2-thiones I (R = Me, MeO, Cl, etc.; Ar = Ph, 4-MeOC₆H₄, 4-MeC₆H₄, 4-ClC₆H₄, etc.) could be obtained in high yields in the presence of Et₃N. Particularly interesting is that the reaction could produce the 2-aminoquinolines II (R¹ = Me, MeO, Cl, etc.; R² = Ph, 3-MeC₆H₄, 4-FC₆H₄, 4-pentylC₆H₄; R³ = Ph, 4-MeC₆H₄, 4-FC₆H₄, etc.) in the presence of K₃PO₄ with high selectivity. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Formula: C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Formula: C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Catalytic Olefin Hydroalkoxylation by NanoParticles of Pollucite was written by Zamanian, Sara;Kharat, Ali Nemati. And the article was included in Australian Journal of Chemistry in 2015.Safety of Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

The catalytic hydroalkoxylation of α,β-unsaturated esters, nitriles, and ethers with aliphatic and aromatic alcs. over pollucite using thermal and microwave-assisted methods was investigated. To study the effect of the alc. structures on the mechanism of the hydroalkoxylation reaction, different alcs., such as methanol to butanol, cyclohexanol, phenol, and 2-ethylhexanol were used. The activities of pollucite, in contrast to other basic solids, were scarcely affected by the presence of air and moisture. The correlation between alc. acidity and reaction activity is discussed. The prepared pollucite was characterized by X-ray diffraction, volumetric nitrogen adsorption surface area anal., and CO2 temperature-programmed desorption. SEM anal. revealed that the size of the modified nano catalyst particles was under 40nm. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Safety of Ethyl 3-ethoxypropanoate).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Safety of Ethyl 3-ethoxypropanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pd immobilized on magnetic chitosan as a heterogeneous catalyst for acetalization and hydrogenation reactions was written by Zhou, Jinghui;Dong, Zhengping;Yang, Honglei;Shi, Zhiqiang;Zhou, Xingchun;Li, Rong. And the article was included in Applied Surface Science in 2013.Electric Literature of C7H14O3 The following contents are mentioned in the article:

A palladium-based catalyst supported on chitosan magnetite nanoparticles was successfully prepared by a facile one-pot template-free method combined with a metal adsorption-reduction procedure. The catalyst was characterized by Fourier transform IR spectroscopy (FT-IR), transmission electron microscope (TEM), vibrating sample magnetometer (VSM), X-ray powder detection (XRD), XPS. The catalyst afforded fast conversions for various aromatic nitro and unsaturated compounds, a under a H₂ atmosphere in ethanol, even at room temperature Furthermore, it was found that the catalyst showed a high activity for the acetalization reaction, affording over a 99% yield in all the cases investigated. Interestingly, the novel catalyst could be recovered in a facile manner from the reaction mixture and recycled five times without any significant loss in activity. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Electric Literature of C7H14O3).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Electric Literature of C7H14O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Photochemical reactions of 2-(alkoxycarbonyl)-, 2-cyano-, and 2-(phenylthio)cycloalkanones in alcoholic solution. Formation of ω-substituted esters was written by Tokuda, Masao;Watanabe, Yasuyuki;Itoh, Mitsuomi. And the article was included in Bulletin of the Chemical Society of Japan in 1978.Related Products of 18891-13-9 The following contents are mentioned in the article:

Photochem. reaction of Et 2-oxo-1-cyclohexanecarboxylate (I) in MeOH gave Et Me heptanedioate, trans– and cis-Et 7-oxo-2-heptenoate, and Et 7-oxo-3-heptenoate in 25, 7, 8, and 21% yields, resp. Photochem. reactions of I in EtOH, iso-PrOH, tert-BuOH gave the corresponding ω-alkoxycarbonyl esters. Other 2-(alkoxycarbonyl)cyclopentanones and -cycloheptanones underwent similar reactions to give the corresponding ω-alkoxycarbonyl esters. Photochem. reactions of 2-cyanocyclohexanones in MeOH similarly gave ω-cyano esters and ω-formyl α,β-unsaturated nitriles. However, photochem. reactions of 2-(phenylthio)- and 2-(methylthio)cyclohexanones in MeOH did not give the corresponding ω-phenylthio or ω-methylthio carboxylic acid esters, products resulting from cleavage of a carbon-sulfur bond being obtained. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Related Products of 18891-13-9).

Ethyl methyl adipate (cas: 18891-13-9) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Related Products of 18891-13-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Catalytic Asymmetric Allylic Substitution with Copper(I) Homoenolates Generated from Cyclopropanols was written by Zhang, Qi;Zhou, Si-Wei;Shi, Chang-Yun;Yin, Liang. And the article was included in Angewandte Chemie, International Edition in 2021.Recommanded Product: Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

By using copper(I) homoenolates as nucleophiles, which are generated through the ring-opening of 1-substituted cyclopropane-1-ols, a catalytic asym. allylic substitution with allyl phosphates is achieved in high to excellent yields with high enantioselectivity. Both 1-substituted cyclopropane-1-ols and allylic phosphates enjoy broad substrate scopes. Remarkably, various functional groups, such as ether, ester, tosylate, imide, alc., nitro, and carbamate are well tolerated. Moreover, the present method is nicely extended to the asym. construction of quaternary carbon centers. Some control experiments argue against a radical-based reaction mechanism and a catalytic cycle based on a two-electron process is proposed. Finally, the synthetic utilities of the product are showcased by means of the transformations of the terminal olefin group and the ketone group. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: Ethyl 3-ethoxypropanoate).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: Ethyl 3-ethoxypropanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

External oxidant-free electrooxidative intramolecular S-N bond formation for one-pot synthesis for 3,5-disubstituted 1,2,4-thiadiazoles was written by Zhong, Qihao;Sheng, Shouri;Chen, Junmin. And the article was included in Phosphorus, Sulfur and Silicon and the Related Elements in 2020.Safety of Isopropylisothiocyanate The following contents are mentioned in the article:

An electrochem. oxidative reaction protocol for the synthesis of 5-amino and 3,5-diamino substituted 1,2,4-thiadiazole derivatives I (R¹ = Ph, cyclopropyl, phenylaminyl, etc.; R² = Ph, pyridin-4-yl, propan-2-yl, etc.) has been developed under undivided electrolytic conditions. The newly developed one-pot methodol. involves the reaction of isothiocyanates R²NCS with amidines or guanidines R¹C(=NH)NH₂. HCl to give the corresponding imidoyl thioureas, which are further cyclized in situ via electrooxidative intramol. S-N bond formation to promote the final products. This protocol features a metal- and external oxidant-free approach, broad substrate scope, good functional group tolerance, excellent yields, and one-pot operation/reaction without the isolation of the intermediates. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Safety of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Safety of Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

External oxidant-free electrooxidative intramolecular S-N bond formation for one-pot synthesis for 3,5-disubstituted 1,2,4-thiadiazoles was written by Zhong, Qihao;Sheng, Shouri;Chen, Junmin. And the article was included in Phosphorus, Sulfur and Silicon and the Related Elements in 2020.Category: esters-buliding-blocks The following contents are mentioned in the article:

An electrochem. oxidative reaction protocol for the synthesis of 5-amino and 3,5-diamino substituted 1,2,4-thiadiazole derivatives I (R¹ = Ph, cyclopropyl, phenylaminyl, etc.; R² = Ph, pyridin-4-yl, propan-2-yl, etc.) has been developed under undivided electrolytic conditions. The newly developed one-pot methodol. involves the reaction of isothiocyanates R²NCS with amidines or guanidines R¹C(=NH)NH₂. HCl to give the corresponding imidoyl thioureas, which are further cyclized in situ via electrooxidative intramol. S-N bond formation to promote the final products. This protocol features a metal- and external oxidant-free approach, broad substrate scope, good functional group tolerance, excellent yields, and one-pot operation/reaction without the isolation of the intermediates. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Category: esters-buliding-blocks).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Volatile profiles of five jackfruit (Artocarpus heterophyllus Lam.) cultivars grown in the Mexican Pacific area was written by Barros-Castillo, Julio C.;Calderon-Santoyo, Montserrat;Cuevas-Glory, Luis F.;Pino, Jorge A.;Ragazzo-Sanchez, Juan A.. And the article was included in Food Research International in 2021.Product Details of 2198-61-0 The following contents are mentioned in the article:

The volatile compounds of five kind of cultivars of jackfruit (Artocarpus heterophyllus Lam.) grown in Nayarit, Mexico, was researched by using extraction and chromatog. methods such as headspace-solid phase microextraction (HS-SPME) and gas chromatog.-mass spectrometry (GC-MS). Eighty-six volatile compounds were identified. The most prominent compounds in the analyzed cultivars were alkyl esters of 3-methylbutanoic acid. Et 3-methylbutanoate was the most abundant ester in FMC, JMC and RMC cultivars (190.7-961.2 μg/kg), whereas Bu 3-methylbutanoate (152.8-205.2 μg/kg) and pentyl 3-methylbutanoate (105.1-210.9 μg/kg) were predominant in DMC and BMC cultivars. By utilizing clustering statistical techniques such as principal component anal. was possible to identify certain esters compounds (number and concentration) to differentiate each cultivar. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Product Details of 2198-61-0).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Product Details of 2198-61-0

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics