Tag: 200-300

A fuzzy classification for identification of double bond position in dodecadienic compounds based on mass spectral data was written by Gu, Yuan. And the article was included in Organic Mass Spectrometry in 1988.Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate The following contents are mentioned in the article:

A fuzzy classification and a computer pattern recognition program are presented for identifying double bond positional isomers of dodecadiene compounds by comprehensively analyzing the mass spectra and calculating similarity coefficients of the compounds Fifty-four examples showed that this is an excellent classification method. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) 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. Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate

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

Monofunctionalized Bambus[6]urils and Their Conjugates with Crown Ethers for Liquid-Liquid Extraction of Inorganic Salts was written by Marsalek, Kamil;Sindelar, Vladimir. And the article was included in Organic Letters in 2020.COA of Formula: C13H10O3 The following contents are mentioned in the article:

In this Letter, the first synthesis of monofunctionalized bambusurils I [R = (CH₂)₄COOH, 4-HO₂CC₆H₄] and their use for preparation of heteroditopic bambusuril-crown ether conjugates suitable for extraction of ion pairs from water to chloroform was presented. 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 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.COA of Formula: C13H10O3

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

Catalytic allylic oxidation with a recyclable, fluorous seleninic acid was written by Crich, David;Zou, Yekui. And the article was included in Organic Letters in 2004.Formula: C12H18O3 The following contents are mentioned in the article:

In conjunction with iodoxybenzene as reoxidant, perfluorooctylseleninic acid (I) catalyzed the allylic oxidation of alkenes to enones, in moderate to good yield. After a reductive workup with sodium metabisulfite, the catalyst was recovered by fluorous extraction in the form of bis(perfluorooctyl) diselenide, which, itself, serves as a convenient catalyst precursor. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Formula: C12H18O3).

(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) 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. 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: C12H18O3

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

Exploiting the Synthetic Potential of Sesquiterpene Cyclases for Generating Unnatural Terpenoids was written by Oberhauser, Clara;Harms, Vanessa;Seidel, Katja;Schroeder, Benjamin;Ekramzadeh, Kimia;Beutel, Sascha;Winkler, Sven;Lauterbach, Lukas;Dickschat, Jeroen S.;Kirschning, Andreas. And the article was included in Angewandte Chemie, International Edition in 2018.SDS of cas: 37905-02-5 The following contents are mentioned in the article:

The substrate flexibility of eight purified sesquiterpene cyclases (STCs) was evaluated using six new heteroatom-modified farnesyl pyrophosphates, and the formation of six new heteroatom-modified macrocyclic and tricyclic sesquiterpenoids is described. Gas chromatog.-olfactory (GC-O) anal. revealed that tricyclic THF exhibits an ethereal, peppery, and camphor-like olfactoric scent. 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 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. 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.SDS of cas: 37905-02-5

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

A Catalytic Borylation/Dehalogenation Route to o-Fluoro Arylboronates was written by Jayasundara, Chathurika R. K.;Unold, Jason M.;Oppenheimer, Jossian;Smith, Milton R. III;Maleczka, Robert E. Jr.. And the article was included in Organic Letters in 2014.Category: esters-buliding-blocks The following contents are mentioned in the article:

A two-step Ir-catalyzed borylation/Pd-catalyzed dehalogenation sequence allows for the net synthesis of fluoroarenes where the boronic ester is ortho to fluorine. Key elements of this approach include the use of a halogen para to the fluorine to block meta Ir-catalyzed borylation and the chemoselective Pd-catalyzed dehalogenation by KF activated polymethylhydrosiloxane (PMHS). This study involved multiple reactions and reactants, such as Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (cas: 1638847-77-4Category: esters-buliding-blocks).

Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (cas: 1638847-77-4) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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.Category: esters-buliding-blocks

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

A Catalytic Borylation/Dehalogenation Route to o-Fluoro Arylboronates was written by Jayasundara, Chathurika R. K.;Unold, Jason M.;Oppenheimer, Jossian;Smith, Milton R. III;Maleczka, Robert E. Jr.. And the article was included in Organic Letters in 2014.Quality Control of Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate The following contents are mentioned in the article:

A two-step Ir-catalyzed borylation/Pd-catalyzed dehalogenation sequence allows for the net synthesis of fluoroarenes where the boronic ester is ortho to fluorine. Key elements of this approach include the use of a halogen para to the fluorine to block meta Ir-catalyzed borylation and the chemoselective Pd-catalyzed dehalogenation by KF activated polymethylhydrosiloxane (PMHS). This study involved multiple reactions and reactants, such as Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (cas: 1638847-77-4Quality Control of Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate).

Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (cas: 1638847-77-4) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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.Quality Control of Methyl 2-fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate

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

Polymerization of fluorine-containing vinyl monomers, 1. Monomer reactivity ratios and Q, e-values of fluoroalkyl acrylates and methacrylates was written by Narita, Tadashi;Hagiwara, Tokio;Hamana, Hiroshi. And the article was included in Makromolekulare Chemie, Rapid Communications in 1985.Name: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate The following contents are mentioned in the article:

The e values in the polymerization of 2,2,2-trifluoromethyl or 2,2,2-trifluoro-1-(trifluoromethyl)ethyl (meth)acrylates with styrene  [100-42-5] (calculated from reactivity ratios) and σ values (calculated using the relation between e and Hammett σ values) showed an electron-withdrawing inductive effect of fluoroalkyl ester groups. This study involved multiple reactions and reactants, such as 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3Name: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate).

1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3) 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: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate

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

Combined Lewis acid catalysts in shotgun process: a convenient synthesis of the female sex pheromone of the red-bollworm moth was written by Nagano, Yoshifumi;Orita, Akihiro;Otera, Junzo. And the article was included in Tetrahedron in 2002.Related Products of 50767-78-7 The following contents are mentioned in the article:

The combined use of Lewis acid and distannoxane catalysts gives rise to a new variant of the shotgun process. The unwanted acetylation of a secondary homoallyl alc. by the former catalyst is suppressed through hybridization with the latter resulting in one-pot aldehyde allylation and primary alc. acetylation of ω-hydroxy alkanal without protection/deprotection procedures. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Related Products of 50767-78-7).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) 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. 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.Related Products of 50767-78-7

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

Insect pheromone components. Use of carbon-13 NMR spectroscopy for assigning the configuration of carbon-carbon double bonds of monoenic or dienic pheromone components and for quantitative determination of Z/E mixtures was written by Rossi, Renzo;Carpita, Adriano;Quirici, Maria G.;Veracini, Carlo Alberto. And the article was included in Tetrahedron in 1982.SDS of cas: 50767-78-7 The following contents are mentioned in the article:

The configuration of mono- and dienic insect pheromones was determined from chem.-shift differences of the allylic C atoms between unsaturated and the corresponding saturated pheromones. The method avoids use of the nuclear Overhauser effect and allows quant. determination of the stereoisomeric composition of mixtures of synthetic mono- and dienic pheromone components. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7SDS of cas: 50767-78-7).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) 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. 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.SDS of cas: 50767-78-7

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

Ubiquinone and related compounds. XXXVIII. Biological oxidation of ubiquinone was written by Morimoto, Hiroshi;Kurimoto, Kuniko;Imada, Isuke. And the article was included in Chemical & Pharmaceutical Bulletin in 1985.COA of Formula: C12H18O3 The following contents are mentioned in the article:

Ubiquinone-2 (I) was oxidized to 6-[7-carboxy-3-methyl-(2E,6E)-2,6-octadienyl]-2,3-dimethoxy-5-methyl-1,4-benzoquinone and 6-[6,7-dihydroxy-3,7-dimethyl-(E)-2-octenyl]-2,3-dimethoxy-5-methyl-1,4-benzoquinone by the 6000-g supernatant of guinea pig liver homogenate in the presence of NAD and NADPH-generating systems. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5COA of Formula: C12H18O3).

(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. 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.COA of Formula: C12H18O3

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