Category: esters-buliding-blocks

Rossi, Renzo et al. published their research in Tetrahedron in 1981 | CAS: 50767-78-7

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

Dienic sex pheromones. Stereoselective syntheses of (7E,9Z)-7,9-dodecadien-1-yl acetate, (E)-9,11-dodecadien-1-yl acetate, and (9Z,11E)-9,11-tetradecadien-1-yl acetate by palladium-catalyzed reactions was written by Rossi, Renzo;Carpita, Adriano;Quirici, M. Grazia. And the article was included in Tetrahedron in 1981.Reference of 50767-78-7 The following contents are mentioned in the article:

(7E,9Z)-Et(CH:CH)2(CH2)nOAc [(7E,9Z)-I (n = 6)], the sex pheromone of Lobesia botrana, was prepared (21.6%) from EtCCBr and MeCH:CH(CH2)6OR (R = tetrahydropyranyl) by sequential cross-coupling reaction [Pd(PPh3)4, MeONa], acetylation (AcOH, reflux, 6 h), and stereoselective reduction [(Me2CHCHMe)2BH, THF]. Similarly, (9Z,11E)-I (n = 8), a sex pheromone component of Spodoptera littoralis, was prepared (30.2%) from (E)-EtCH:CHI and BrMgCC(CH2)8OR (R as before). (E)-CH2:CHCH:CH(CH2)8OAc, a sex pheromone component of Diparopsis castanea, was prepared (54.3%) from H2C:CHBr and (Me2CHCHMe)2BCH:CH(CH2)8OR (R as before) by Pd(PPh3)4-catalyzed cross-coupling reaction followed by acetylation (Ac2O, AcOH, 80°). This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Reference of 50767-78-7).

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

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

DeCarlo, Anjanette et al. published their research in Natural Product Communications in 2022 | CAS: 112-14-1

Octyl acetate (cas: 112-14-1) 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. 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 112-14-1

Inter-Tree Variation in the Chemical Composition of Boswellia papyrifera Oleo-Gum-Resin was written by DeCarlo, Anjanette;Agieb, Salah;Johnson, Stephen;Satyal, Prabodh;Setzer, William N.. And the article was included in Natural Product Communications in 2022.Related Products of 112-14-1 The following contents are mentioned in the article:

Frankincense is a fragrant resin produced by Boswellia species, and has been used for centuries as a perfume, medicine, and incense, and is an important cosmetic and therapeutic product today. A number of studies have been conducted on the resin essential oils, but many have used com. sources outside of the country of origin, leading to potential taxonomic confusion or misidentification. Individual Boswellia papyrifera resin samples were each obtained directly from 11 individual trees in Sudan, hydrodistd., the volatile phytochems. determined by gas chromatog. methods, and the chem. compositions subjected to cluster anal. All samples were very similar, with high levels of octyl acetate (49.5%-81.0%) and octanol (6.5%-13.7%), and varying levels of diterpenoids (6.6%-32.7%). The cluster anal. indicated 3 highly similar groups, defined by (1) relatively higher levels of octyl acetate (58.9%-81.0%), but with low levels of diterpenoids (6.6%-18.6%); (2) relatively lower levels of octyl acetate (49.5%-61.3%), but with a higher proportion of diterpenoids (19.0%-22.8%); and (3) with octyl acetate (51.6%) and diterpenoids (32.7%). This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Related Products of 112-14-1).

Octyl acetate (cas: 112-14-1) 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. 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 112-14-1

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

Bruusgaard-Mouritsen, Maria A.’s team published research in Contact Dermatitis in 85 | CAS: 121-79-9

Contact Dermatitis published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Product Details of C10H12O5.

Bruusgaard-Mouritsen, Maria A. published the artcileFacial contact dermatitis caused by cosmetic-relevant allergens, Product Details of C10H12O5, the publication is Contact Dermatitis (2021), 85(6), 650-659, database is CAplus and MEDLINE.

Facial allergic contact dermatitis caused by cosmetic products is common. New allergens in cosmetics continuously emerge. To investigate characteristics of patients with facial dermatitis (FD) between 2010 and 2019 including patch test results from cosmetic-related allergens and a new test series with cosmetic-relevant natural ingredients (CRNIs). This is a retrospective study analyzing demographics, clin. characteristics according to MOAHLFA index (male; occupation; atopic dermatitis; hand; leg; face; age ≥ 40 years), and patch test results to 27 cosmetic-relevant allergens in FD patients. A prospective study evaluating a screening test series with CRNIs in consecutive FD patients for 1 yr was also conducted. These patients received a questionnaire for collecting extra characteristics (eg, concerning quality of life). Of 8740 tested patients, 2292 (26.2%) had FD. Of these, 30.6% had cosmetic-induced FD. The most common cosmetic-related allergens were fragrances and preservatives. The most common patch test-pos. CRNIs were hydroperoxides of limonene and linalool, and propolis. Potato and peanut were rare, but the most common prick test-pos. CRNIs, however, without any relation to the use of cosmetic products. FD affected nearly all patients′ quality of life and caused limitations to their daily life. Updated management and quick diagnosis of FD is important to avoid neg. impact on patients′ quality of life.

Contact Dermatitis published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Product Details of C10H12O5.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Polanski, Jaroslaw’s team published research in Quantitative Structure-Activity Relationships in 17 | CAS: 5340-78-3

Quantitative Structure-Activity Relationships published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Safety of Ethyltert-butylacetate.

Polanski, Jaroslaw published the artcileThe comparison of molecular surfaces by neural networks and its applications to quantitative structure activity studies, Safety of Ethyltert-butylacetate, the publication is Quantitative Structure-Activity Relationships (1998), 17(1), 27-36, database is CAplus.

Self-organizing Kohonen neural networks are used to obtain quant. structure-activity relationships. Simple mols. were selected to discuss the essential features of the transformation. Descriptors calculated from maps obtained from comparative studies with template mols. applied to the anal. of compounds derived from butane, as well as Et carboxylates and nitroanilines and aminobenzonitriles (sweet-tasting compounds) can be correlated with various mol. effects.

Quantitative Structure-Activity Relationships published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Safety of Ethyltert-butylacetate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Olmos, Andrea’s team published research in Angewandte Chemie, International Edition in 57 | CAS: 5340-78-3

Angewandte Chemie, International Edition published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Recommanded Product: Ethyltert-butylacetate.

Olmos, Andrea published the artcileMeasuring the Relative Reactivity of the Carbon-Hydrogen Bonds of Alkanes as Nucleophiles, Recommanded Product: Ethyltert-butylacetate, the publication is Angewandte Chemie, International Edition (2018), 57(42), 13848-13852, database is CAplus and MEDLINE.

We report quant. measurements of the relative reactivities of a series of C-H bonds of gaseous or liquid CnH2n+2 alkanes (n = 1-8, 29 different C-H bonds) towards in situ generated electrophiles (copper, silver, and rhodium carbenes), with methane as the reference This strategy surpasses the drawback of previous model reactions of alkanes with strong electrophiles suffering from C-C cleavage processes, which precluded direct comparison of the relative reactivities of alkane C-H bonds.

Angewandte Chemie, International Edition published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Recommanded Product: Ethyltert-butylacetate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Bai, Feng’s team published research in Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) in 40 | CAS: 50670-76-3

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

Bai, Feng published the artcileSynthesis of a biphenyl-containing, achiral, V-shaped liquid crystalline polyester, SDS of cas: 50670-76-3, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1999), 40(2), 878-879, database is CAplus.

A new V-shaped liquid crystalline monomer 1,3-Ph bis[4′-(11-hydroxyundecanyloxy)-4-biphenyl]carboxylate was synthesized from 4′-hydroxy-4-biphenylcarboxylic acid, resorcinol, and 11-bromo-1-undecanol. The polymer was prepared by condensing monomer with isophthalic acid under mild condition using 1,3-dicyclohexylcarbodiimide as condensing reagent in the presence of N,N-dimethylaminopyridinium toluenesulfonate.

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Zhanhui’s team published research in Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) in 40 | CAS: 50670-76-3

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C18H15N3O3, Quality Control of 50670-76-3.

Zhang, Zhanhui published the artcileSynthesis and characterization of optically active, main-chain, liquid crystalline polyesters, Quality Control of 50670-76-3, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1999), 40(2), 880-881, database is CAplus.

Optically active, main-chain, liquid crystalline polyether-polyesters were prepared via room temperature polymerization The samples of the polyester had number-average mol.-weights 12,000-41,900 g/mol, the weight-average mol.-weights 24,500-135,000 g/mol and Tg 37-39° as determined by DSC anal. The polymers could be solution-cast into tough, flexible films or spun into fibers. Thermogravimetric anal. (TGA) of the polymers showed a 5% weight loss at 315-330°, indicating that these chiral polyesters have good thermal stability. The liquid crystalline phases of both the monomer and the polymer were studied by polarized light microscope (PLM).

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C18H15N3O3, Quality Control of 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Liu, Shiyu’s team published research in Fibers and Polymers in 23 | CAS: 617-52-7

Fibers and Polymers published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Recommanded Product: Dimethyl itaconate.

Liu, Shiyu published the artcileTuning Molecular Composition for Better Cross-section Homogeneity of Thermal Oxidative Stabilized Polyacrylonitrile for Carbon Materials, Recommanded Product: Dimethyl itaconate, the publication is Fibers and Polymers (2022), 23(6), 1515-1524, database is CAplus.

A strategy to improve the cross-section homogeneity of thermal oxidative stabilized polyacrylonitrile for carbon materials was provided in the present work. A kind of comonomer, di-Me itaconate (DMI), which possesses two bulky side groups was introduced into poly(acrylonitrile-co-itaconic acid). The efficiency of DMI in improving the cross-section homogeneity of polyacrylonitrile films during thermal oxidative stabilization (TOS) processes and the properties of resulted PAN-based carbon materials were investigated in detail. It was found that DMI facilitated the formation of longer cyclic structures, higher oxygen content, more homogeneous cross-section fracture morphol. and denser structure during TOS process. DMI was also benefit for easing heat release. The presence of DMI also facilitated a smaller ID/IG value of the carbonized PAN film and a bigger in-plane size of graphite crystals La.

Fibers and Polymers published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Recommanded Product: Dimethyl itaconate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Nolla-Saltiel, Roberto’s team published research in Advanced Synthesis & Catalysis in 362 | CAS: 627-93-0

Advanced Synthesis & Catalysis published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, SDS of cas: 627-93-0.

Nolla-Saltiel, Roberto published the artcileHydrophosphination of Activated Alkenes by a Cobalt(I) Pincer Complex, SDS of cas: 627-93-0, the publication is Advanced Synthesis & Catalysis (2020), 362(15), 3148-3157, database is CAplus.

Herein is reported the synthesis of three heteroleptic first-row transition metal(II) complexes containing carbazolido NNN pincer ligands and conversion to the corresponding metal(I)-carbonyl complexes via a reductive carbonylation route. These complexes are precatalysts for the hydrophosphination of activated alkenes, affording a cobalt-catalyzed hydrophosphination process that solely and selectively yields the β addition (anti-Markovnikov) product. The scope of this transformation has been investigated using a variety of activated alkenes. Isolation and characterization of substrate-coordinated intermediates reveal available coordination sites, which provide insight into the proposed catalytic cycle.

Advanced Synthesis & Catalysis published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, SDS of cas: 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Riadi, Yassine’s team published research in Polycyclic Aromatic Compounds in | CAS: 617-52-7

Polycyclic Aromatic Compounds published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Recommanded Product: Dimethyl itaconate.

Riadi, Yassine published the artcileSynergistic Catalytic Effect of the Combination of Deep Eutectic Solvents and Hierarchical H-TiO2 Nanoparticles toward the Synthesis of Benzimidazole-Linked Pyrrolidin-2-One Heterocycles: Boosting Reaction Yield, Recommanded Product: Dimethyl itaconate, the publication is Polycyclic Aromatic Compounds, database is CAplus.

Synthesis of bioactive heterocyclic compounds comprising pyrrolidinone linked to a benzimidazole moiety I (X = 2-Me, 3-F-4-Cl, 4-OH, etc.) by an eco-friendly and efficient route was investigated. The targeted scaffolds were synthesized from substituted arylamines XC6H4NH2 and available o-phenylenediamine under ultrasonic irradiation in the presence of a mixture of a deep eutectic solvent (DES) and hierarchical TiO2 (H-TiO2) microspheres as a green catalytic system. Two DESs were synthesized by sep. mixing FeCl2 and CuCl2 with urea. On the other hand, hierarchical TiO2 (H-TiO2) was synthesized by a solvothermal route and characterized by XRD, SEM, Raman spectroscopy, and XPS. The results demonstrate that the best reaction yields are obtained by using H-TiO2 microspheres in the DES. Besides, the synthesized compounds were screened for their antibacterial activity against different bacteria. Overall, eight derivatives were confirmed to exhibit antibacterial activity.

Polycyclic Aromatic Compounds published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Recommanded Product: Dimethyl itaconate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics