Tag: 100-200

A new group contribution-based model for estimation of lower flammability limit of pure compounds was written by Gharagheizi, Farhad. And the article was included in Journal of Hazardous Materials in 2009.Reference of 763-69-9 The following contents are mentioned in the article:

In the present study, a new method is presented for estimation of lower flammability limit (LFL) of pure compounds This method is based on a combination of a group contribution method and neural networks. The parameters of the model are the occurrences of a new collection of 105 functional groups. Basing on these 105 functional groups, a feed forward neural network is presented to estimate the LFL of pure compounds The average absolute deviation error obtained over 1057 pure compounds is 4.62%. Therefore, the model is an accurate model and can be used to predict the LFL of a wide range of pure compounds This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Reference of 763-69-9).

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. 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. Reference of 763-69-9

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

Spin-on-glass (SOG) for the trilayer imaging process was written by Sugita, Hikaru;Saito, Akio;Konno, Keiji;Hayasui, Akihiro;Nishiyama, Satoru;Ebisawa, Masahiko;Nishikawa, Michinori;Ohta, Yoshihisa;Tominaga, Tetsuo. And the article was included in Journal of Applied Polymer Science in 2003.Formula: C7H14O3 The following contents are mentioned in the article:

Maleic acid catalyzed hydrolysis and condensation of tetramethoxysilane was carried out in 1-propoxy-2-propanol to prepare a spin-on-glass (SOG) material for the trilayer imaging process. The material was found to be stable enough for industry use. Minor amounts of methylsilsesquioxane and photoacid generators were introduced into the material. Thin resist (top layer) patterns were imaged on the SOG film (intermediate layer), which was coated on a hard-baked i-line resist (bottom layer). The SOG film showed sufficient adhesion to the resist patterns, and superior resist profiles were imaged on the film. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Formula: C7H14O3).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) 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. 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: C7H14O3

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

Cobalt-catalysed selective synthesis of aldehydes and alcohols from esters was written by Pattanaik, Sandip;Gunanathan, Chidambaram. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2020.Name: Methyl heptanoate The following contents are mentioned in the article:

Efficient and selective reduction of esters R¹COOR² (R¹ = n-pentyl, Ph, 4-MeC₆H₄, etc.; R² = Me, Et, n-Bu, Bn) to aldehydes R¹CHO (R¹ = Ph, 4-MeC₆H₄, Bn, etc.) and alcs. R¹CH₂OH (R¹ = Ph, 4-FC₆H₄, 4-MeC₆H₄, etc.) is reported in which a simple cobalt pincer catalyst catalyzes both transformations using diethylsilane as a reductant. Remarkably, the reaction selectivity is controlled by the stoichiometry of diethylsilane. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Name: Methyl heptanoate).

Methyl heptanoate (cas: 106-73-0) 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 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.Name: Methyl heptanoate

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

Lewis acids as highly efficient catalysts for the decarboxylative esterification of carboxylic acids with dialkyl dicarbonates was written by Goossen, L.;Doehring, A.. And the article was included in Advanced Synthesis & Catalysis in 2003.Formula: C9H16O4 The following contents are mentioned in the article:

Mild Lewis acids such as Mg(ClO₄)₂ show a new level of catalytic activity for the decarboxylative esterification of carboxylic acids with com. available dialkyl dicarbonates. In the presence of as little as one mol % Mg(ClO₄)₂ catalyst, carboxylic acids can thus easily and near quant. be protected at room temperature, e.g., as Me, benzyl, or t-Bu esters. Only volatile byproducts are released so that the purification of the products is particularly easy. Many sensitive functionalities are tolerated, including even phenol esters, or free hydroxy and BOC groups. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Formula: C9H16O4).

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. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C9H16O4

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

Amide/Iminium Zwitterionic Catalysts for (Trans)esterification: Application in Biodiesel Synthesis was written by Lam, Ying-Pong;Wang, Xinyan;Tan, Fei;Ng, Wing-Hin;Tse, Ying-Lung Steve;Yeung, Ying-Yeung. And the article was included in ACS Catalysis in 2019.Safety of Octyl acetate The following contents are mentioned in the article:

A class of zwitterionic organocatalysts based on an amide anion/iminium cation charge pair has been developed. The zwitterions are easily prepared by reacting aziridines with aminopyridines. They are catalytically applicable to transesterifications and dehydrative esterifications. Mechanistic studies reveal that the amide anion and iminium cation work synergistically in activating the reaction partners, with the iminium cationic moiety interacting with the carbonyl substrates through nonclassical hydrogen bonding. The reaction can be applied to large-scale synthesis of biodiesel under mild conditions. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Safety of Octyl acetate).

Octyl acetate (cas: 112-14-1) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Safety of Octyl acetate

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

Catalytic Methyl Transfer from Dimethylcarbonate to Carboxylic Acids was written by Ji, Yuan;Sweeney, Jessica;Zoglio, Jillian;Gorin, David J.. And the article was included in Journal of Organic Chemistry in 2013.Recommanded Product: Ethyl methyl adipate The following contents are mentioned in the article:

Although methylation reactions are commonplace, currently used reagents are hazardous, toxic, and/or unstable. Dimethylcarbonate has been put forth as an inexpensive, nontoxic, and “green” potential methylating reagent. Herein we report a general, base-catalyzed Me transfer from dimethylcarbonate to carboxylic acids. High selectivity for esterification is observed even in the presence of unprotected phenols, and the mild reaction conditions enable conservation of stereochem. at epimerizable stereocenters. Isotope-labeling studies suggest a mechanism proceeding by direct Me transfer from dimethylcarbonate to the substrate. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Recommanded Product: Ethyl methyl adipate).

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. 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.Recommanded Product: Ethyl methyl adipate

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

Study of the uptake of ethyl-3-ethoxy propionate onto ammonium sulfate aerosols was written by Stewart, Kyana D.;Andino, Jean M.. And the article was included in Preprints of Extended Abstracts presented at the ACS National Meeting in 2005.Computed Properties of C7H14O3 The following contents are mentioned in the article:

The behavior of Et 3-ethoxypropionate (E3EP) in the presence of ammonium sulfate [(NH₄)₂SO₄] aerosol particles made from a 1% solution of ammonium sulfate was studied. E3EP is a polar organic compound that is most commonly found in paint products. The uptake coefficient for E3EP onto ammonium sulfate aerosol particles made from a 1.0% solution was determined to be 1.36 × 10^-2. This implies that approx. one mol. in 74 mols. of E3EP will be taken up onto the surface of an ammonium sulfate particle with median diameters based on number and surface area of 71.8 nm and 149 nm, resp. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Computed Properties of C7H14O3).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) 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. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Computed Properties of C7H14O3

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

Reactions of (Trialkylsilyl)vinylketenes with Lithium Ynolates: A New Benzannulation Strategy was written by Austin, Wesley F.;Zhang, Yongjun;Danheiser, Rick L.. And the article was included in Organic Letters in 2005.Safety of Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

(Trialkylsilyl)vinylketenes I [R¹ = Me, R² = Me, Et, cyclohexyl; R¹R² = (CH₂)₄] react with lithium ynolates, generated from ethynyl silyl ethers R³CCOSiR⁴₂R⁵ (R³ = Me₂CH, n-Bu, 1-cyclohexenyl, etc.; R⁴ = R⁵ = Me₂CH; R⁴ = Me, R⁵ = Me₃C) to produce highly substituted phenols II in a new benzannulation strategy that proceeds via the 6π electrocyclization of an intermediate 3-(oxido)dienylketene. 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. 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, including apples, durians, pears, bananas, pineapples, and strawberries. 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

Thermoset siloxane-urethane fouling release coatings was written by Majumdar, Partha;Ekin, Abdullah;Webster, Dean C.. And the article was included in ACS Symposium Series in 2007.SDS of cas: 763-69-9 The following contents are mentioned in the article:

The exploration of numerous variables involved in the design of novel crosslinked siloxane-urethane coatings was carried out using combinatorial methods. Libraries of coatings that explored the effect of siloxane level, solvent, and other variables were prepared and characterized for their surface energy and pseudobarnacle pull-off adhesion. Stability of the coatings was determined by measuring the surface energy after aging the coatings in water and re-measuring the surface energy. Coating compositions and formulations were identified that had stable hydrophobic surfaces and also had low pseudobarnacle adhesion values. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9SDS of cas: 763-69-9).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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.SDS of cas: 763-69-9

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

Performance of palm fibers as stationary phase for capillary gas chromatographic separations was written by Sun, Tao;Chen, Hong;Qiao, Xiaoguang;Ma, Lufang;Hu, Shaoqiang;Liu, Xianming. And the article was included in RSC Advances in 2018.Recommanded Product: 106-73-0 The following contents are mentioned in the article:

Herein we report the first example of exploring bio-based materials, palm fibers (PFs), as a stationary phase for capillary gas chromatog. separations The PFs capillary column was fabricated by the sol-gel coating method and showed a weak polar nature and high column efficiency over 4699 plates per m for n-dodecane, naphthalene and n-octanol. Importantly, the column exhibited high selectivity and resolving capability for more than a dozen mixtures covering a wide-ranging variety of analytes and isomers. In addition, it was applied for the determination of isomer impurities in real samples, proving its good potential for practical gas chromatog. anal. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Recommanded Product: 106-73-0).

Methyl heptanoate (cas: 106-73-0) 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. Recommanded Product: 106-73-0

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