Month: December 2022

Identification of benorilate tablets by infrared spectrophotometric method was written by Lu, Hong. And the article was included in Heilongjiang Yiyao in 2008.Electric Literature of C17H15NO5 The following contents are mentioned in the article:

The objective of this paper is to establish a rapid and exclusive method for the identification of benorilate tablets. The sample crystallized with methanol, and identified by the IR spectrophotometric method. The results show that the IR absorption spectrum of the benorilate tablets was completely in conformity with that of the reference substance and the standard spectrum of paracetamol in IR spectrum album of drugs issued by Chinese Pharmacopeia Committee. It was concluded that the method is specific, rapid and convenient and it can be used for the identification of benorilate tablets. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Electric Literature of C17H15NO5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C17H15NO5

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

Variable pressure infrared studies on the molecular dynamics and interactions of the model lubricant, 2-ethylhexyl benzoate (EHB) was written by Whitley, A.;Yarwood, J.;Gardiner, D. J.. And the article was included in Journal of Molecular Structure in 1991.Quality Control of 2-Ethylhexyl benzoate The following contents are mentioned in the article:

The IR spectra of 2-ethylhexyl benzoate (as a model lubricant) was studied at pressures between ambient and 30 kilobars at 293 K in a diamond anvil cell. The ν(C=O) vibrational band profile reflected the effects of both attractive and repulsive potentials through changes in the 1st moment (frequency shift) and dephasing rate (bandwidth). At relatively low pressures (0-5 kilobars), ordering of the mol. dipoles was accompanied by an increase in the distribution of mols. in different micro environments. This may be associated with a multiplicity of interactions at different sites of the mol. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Quality Control of 2-Ethylhexyl benzoate).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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. 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.Quality Control of 2-Ethylhexyl benzoate

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

Antiproliferative and apoptotic potential of methotrexate lipid nanoparticles in a murine breast cancer model was written by Surve, Chaitali;Banerjee, Ananya;S, Anupriya;Chakraborty, Rajasree;Kumar, Dhiraj;Butti, Ramesh;Gorain, Mahadeo;Parida, Sabyasachi;Kundu, Gopal C.;Shidhaye, Supriya;Patnaik, Srinivas. And the article was included in Nanomedicine (London, United Kingdom) in 2022.Quality Control of Glyceryl monostearate The following contents are mentioned in the article:

To evaluate the efficacy of novel methotrexate-loaded nanoparticles (MTX-NPs) in vitro and in vivo in the treatment of breast cancer. MTX-NPs were tested for cellular uptake, cell viability, cell cycle, cellular wound migration and changes in tumor volume using characterized NPs. The solid lipid NPs (SLNPs) showed strong cellular uptake, increased apoptosis, controlled cytotoxicity at lower IC₅₀ of methotrexate and a sizable reduction in tumor burden. MTX-NP oral formulation can be a promising candidate in breast cancer treatment with improved cellular uptake and in vivo efficacy. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Quality Control of Glyceryl monostearate).

Glyceryl monostearate (cas: 31566-31-1) 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.Quality Control of Glyceryl monostearate

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

Photo-on-demand Phosgenation Reactions with Chloroform Triggered by Cl₂ upon Irradiation with Visible Light: Syntheses of Chloroformates, Carbonate Esters, and Isocyanates was written by Suzuki, Yuto;Liang, Fengying;Okazoe, Takashi;Okamoto, Hidekazu;Takeuchi, Yu;Tsuda, Akihiko. And the article was included in Chemistry Letters in 2022.COA of Formula: C13H10O3 The following contents are mentioned in the article:

Chloroform (CHCl₃) upon bubbling with O₂ containing ∼2% Cl₂ underwent oxidative photochem. conversion to phosgene (COCl₂) when exposed to a white LED light. Cl₂ may serve as a visible light-responsive radical initiator in the radical chain reactions of CHCl₃ and O₂. This photochem. reaction allowed both in situ and stepwise one-pot phosgenation reactions, which are simple and safe methods, without expensive apparatus It can be applied to a variety of conventional organic syntheses using phosgene and phosgene oligomers. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0COA of Formula: C13H10O3).

Diphenyl carbonate (cas: 102-09-0) 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. 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: C13H10O3

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

Characteristic chemical components of the essential oil from white kwao krua (Pueraria mirifica) was written by Yagi, Nobuo;Nakahashi, Hiroshi;Kobayashi, Tomohiro;Miyazawa, Mitsuo. And the article was included in Journal of Oleo Science in 2013.Category: esters-buliding-blocks The following contents are mentioned in the article:

The components of the essential oil from the roots of Pueraria mirifica were analyzed by capillary gas chromatog.-mass spectrometry (GC-MS). Eighty-two components, representing 88.5% of the total oil, were identified by GC-MS. The main component of the oil was 2-pentylfuran, followed by hexanal and hexadecanol. With regard to the odor components from the essential oil of P. mirifica as determined by gas chromatog.-olfactometry and aroma extract dilution anal., it was revealed that phenylacetaldehyde and (2E)-nonenal imparted the green odor of the oil, and geraniol contributed to the sweet odor. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Category: esters-buliding-blocks).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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. 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.Category: esters-buliding-blocks

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

Composition and difference of fatty acid components in Phellodendron chinense and Phellodendron amurense was written by Xue, Juan;Zhang, Hongwei;Sun, Yichun;Mi, Yingying;Kuang, Haixue;Wang, Qiuhong. And the article was included in Guizhou Nongye Kexue in 2015.SDS of cas: 1731-94-8 The following contents are mentioned in the article:

The fatty acid Me ester of extracts from P. hinense and P. amurense was isolated and identified by GC-MS to explore composition and difference of fatty acid in P. hinense and P. amurense. 65 And 14 components were isolated from P. chinense and P. murense resp. 53 And 14 components were identified sep. The fatty acid of P. chinense mainly contains linolelaidic acid (16.059%), jinoleic acid (14.232%), oleic acid (13.354%) and hexadecanoic acid (7.528%). The fatty acid of P. amurense mainly contains linoleic acid (62.047%), oleic acid (6.905%), linolenic acid (6.283%) and hexadecanoic acid (2.959%). This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8SDS of cas: 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. SDS of cas: 1731-94-8

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

Abraham model correlations for enthalpies of solvation of organic solutes dissolved in methyl acetate and octane was written by Lu, Jonathan Z.;Acree, William E. Jr.;Abraham, Michael H.. And the article was included in Physics and Chemistry of Liquids in 2020.Application of 106-73-0 The following contents are mentioned in the article:

Data have been assembled from the published literature on the enthalpies of solvation for 63 compounds dissolved in Me acetate and for 67 compounds dissolved in octane. It is shown that an Abraham solvation equation can successfully correlate the exptl. enthalpies of solvation in both Me acetate and octane to within standard deviations of 2.89 and 2.15 kJ mol^-1, resp. The correlations determined in the present study provide very accurate math. descriptions of the measured enthalpy of solvation data at 298 K, which in the case of Me acetate span a range of about 110 kJ mol^-1. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Application of 106-73-0).

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 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. Application of 106-73-0

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

Synthesis of racemic 5,9-dimethylheptadecane, the sex pheromone of Leucoptera scitella (Zeller) (Lepidoptera: Lyonetidae) was written by Kovalev, B. G.;Sorochinskaya, A. M.. And the article was included in Khimiya Prirodnykh Soedinenii in 1991.SDS of cas: 37905-02-5 The following contents are mentioned in the article:

Geranyl acetate was oxidized by Me₃COOH and SeO₂ to a diol monoacetate, which was oxidized by pyridinium chlorochromate to the acetoxy aldehyde (I). Wittig reaction of I with [Ph₃PPr]Br gave EtCH:CHCMe:CHCH₂CH₂CMe:CHCH₂OAc, which underwent a Grignard reaction with Me(CH₂)₅MgBr and CuI to give EtCH:CHCMe:CHCH₂CH₂CMe:CH(CH₂)₆Me₃ (II). Hydrogenation of II over Pt/C gave 5,9-dimethylheptadecane. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5SDS of cas: 37905-02-5).

(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) 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: 37905-02-5

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

Organocatalytic Decarboxylative Cyanomethylation of Difluoromethyl and Trifluoromethyl Ketones was written by Balaraman, Kaluvu;Moskowitz, Max;Wolf, Christian. And the article was included in Advanced Synthesis & Catalysis in 2018.Name: Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate The following contents are mentioned in the article:

An efficient organocatalytic method for the synthesis of difluoromethyl and trifluoromethyl substituted β-hydroxynitriles RC(OH)(CXF₂)CH₂CN (R = Ph, cyclohexyl, furan-2-yl, etc.; X = H, F) is introduced. The decarboxylative cyanomethylation of fluorinated ketones RC(O)CXF₂ with readily available cyanoacetic acid gives a variety of tertiary alcs. in high yields and without concomitant water elimination. The reaction occurs in the presence of catalytic amounts of triethylamine, and can be upscaled and applied to chlorofluoromethyl ketones and difluoromethyl ketimines. This study involved multiple reactions and reactants, such as Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate (cas: 898787-14-9Name: Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate).

Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate (cas: 898787-14-9) 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. 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.Name: Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate

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