Esters-buliding-blocks

Witzgall, Peter published the artcileNew pheromone components of the grapevine moth Lobesia botrana, Name: (Z)-Dodec-9-en-1-yl acetate, the publication is Journal of Chemical Ecology (2005), 31(12), 2923-2932, database is CAplus and MEDLINE.

Anal. of extracts of sex pheromone glands of grapevine moth females Lobesia botrana showed three previously unidentified compounds, (E)-7-dodecenyl acetate and the (E,E)- and (Z,E)-isomers of 7,9,11-dodecatrienyl acetate. This is the first account of a triply unsaturated pheromone component in a tortricid moth. The monoenic acetate (E)-7-dodecenyl acetate and the trienic acetate (7Z,9E,11)-dodecatrienyl acetate significantly enhanced responses of males to the main pheromone compound, (7E,9Z)-7,9-dodecadienyl acetate, in the wind tunnel. The identification of sex pheromone synergists in L. botrana may be of practical importance for the development of integrated pest management systems.

Journal of Chemical Ecology published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C6H8O4, Name: (Z)-Dodec-9-en-1-yl acetate.

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

Al-Trawneh, Salah A. published the artcileSynthesis and cytotoxicity of thieno[2,3-b]pyridine derivatives toward sensitive and multidrug-resistant leukemia cells, Computed Properties of 924-99-2, the publication is Acta Chimica Slovenica (2021), 68(2), 458-465, database is CAplus and MEDLINE.

A new series of substituted Et 7-cyclopropyl-2-(2-aryloxo)-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylates I (R = H, CHO; X = H, 4-Me, 4-Cl; Y = O, S) were prepared by utilizing Et 2-chloro-7-cyclopropyl-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylate (1) and replacing of the 2-chlorine with anions obtained from phenol, salicylaldehyde derivatives like salicylaldehyde, 5-methylsalicylaldehyde and 5-chlorosalicylaldehyde or thiophenol, leading to the resp. Et 7-cyclopropyl-2-(2-aryloxo)-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylates I. The new compounds I were evaluated for their in vitro cytotoxicity towards sensitive CCRF-CEM and multidrug-resistant CEM/ADR5000 leukemia cells. The screening revealed that compounds I (R = X = H, Y = O; R = CHO, X = H, Y = O; R = X = H, Y = S) inhibited the growth of both cell lines. Compound I (R = CHO, X = H, Y = O), with a phenol moiety, exhibited the highest growth inhibitory activity against CEM/ADR5000 and CCRF-CEM cells with IC₅₀ values 4.486 ± 0.286 and 2.580 ± 0.550μM, resp. Collectively, the presented results demonstrate that the synthesized thieno[2,3-b]pyridines I warrant further exploration for potential use as anti-cancer agents.

Acta Chimica Slovenica published new progress about 924-99-2. 924-99-2 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Amine,Aliphatic hydrocarbon chain,Ester, name is Ethyl 3-(dimethylamino)acrylate, and the molecular formula is C7H13NO2, Computed Properties of 924-99-2.

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

Zhi, Chunli published the artcileDetermination and correlation of ternary isobaric vapour-liquid equilibrium data of (dimethyl succinate + dimethyl glutarate + dimethyl adipate) at 2, 5 and 8 kPa, COA of Formula: C8H14O4, the publication is Journal of Chemical Thermodynamics (2020), 106047, database is CAplus.

Isobaric vapor-liquid equilibrium data of {dimethyl succinate (DMS) + di-Me glutarate (DMG) + di-Me adipate (DMA)} ternary system was measured at 2 kPa, 5 kPa and 8 kPa with a dynamic recirculating apparatus and the temperature ranged from 364.46 to 403.55 K. The exptl. data was correlated with NRTL, Wilson and Uniquac models. The results showed that the maximum value of the root mean square deviation of the vapor phase mole fraction of the ternary system correlated by the three models is 0.0083, 0.0076 and 0.0084, resp. The vapor-liquid equilibrium data of the ternary system was predicted by the interaction parameters of NRTL, Wilson and the Uniquac models in the literature. The results showed that the maximum value of the root mean square deviation of the vapor phase mole fraction of the ternary system predicted by the three models is 0.0547, 0.0471, and 0.0498, resp. The deviation between the exptl. value and the regression value or the predicted value was small, and both met the needs of design calculation of the engineering separation The results obtained from the regression of exptl. values are significantly better.

Journal of Chemical Thermodynamics 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 C8H19NO, COA of Formula: C8H14O4.

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

Wang, Jing published the artcileCharacterization of the Volatile Compounds in Camellia oleifera Seed Oil from Different Geographic Origins, SDS of cas: 103-26-4, the publication is Molecules (2022), 27(1), 308, database is CAplus and MEDLINE.

Volatile flavor of edible oils is an important quality index and factor affecting consumer choice. The purpose of this investigation was to characterize virgin Camellia oleifera seed oil (VCO) samples from different locations in southern China in terms of their volatile compounds to show the classification of VCO with respect to geog. Different samples from 20 producing VCO regions were collected in 2020 growing season, at almost the same maturity stage, and processed under the same conditions. Headspace solid-phase microextraction (HS-SPME) with a gas chromatog.-mass spectrometer system (GC-MS) was used to analyze volatile compounds A total of 348 volatiles were characterized, including aldehydes, ketones, alcs., acids, esters, alkenes, alkanes, furans, phenols, and benzene; the relative contents ranged from 7.80-58.68%, 1.73-12.52%, 2.91-37.07%, 2.73-46.50%, 0.99-12.01%, 0.40-14.95%, 0.00-27.23%, 0.00-3.75%, 0.00-7.34%, and 0.00-1.55%, resp. The VCO geog. origins with the largest number of volatile compounds was Xixiangtang of Guangxi (L17), and the least was Beireng of Hainan (L19). A total of 23 common and 98 unique volatile compounds were detected that reflected the basic and characteristic flavor of VCO, resp. After PCA, heatmap and PLS-DA anal., Longchuan of Guangdong (L8), Qingshanhu of Jiangxi (L16), and Panlong of Yunnan (L20) were in one group where the annual average temperatures are relatively low, where annual rainfalls are also low. Guangning of Guangdong (L6), Yunan of Guangdong (L7), Xingning of Guangdong (L9), Tianhe of Guangdong (L10), Xuwen of Guangdong (L11), and Xiuying of Hainan (L18) were in another group where the annual average temperatures are relatively high, and the altitudes are low. Hence, volatile compound distributions confirmed the differences among the VCO samples from these geog. areas, and the provenance difference evaluation can be carried out by flavor.

Molecules published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C23H28N2O4, SDS of cas: 103-26-4.

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

Deng, Lin published the artcileNovel chalcone-based phenothiazine derivative photoinitiators for visible light induced photopolymerization with photobleaching and good biocompatibility, Formula: C15H20O6, the publication is Progress in Organic Coatings (2022), 106859, database is CAplus.

Two novel visible light photoinitiators 4-(10-methyl-10H-phenothiazin-3-yl) but-3-en-2-one (PBO) and (1E,4E)-1,5-bis(10-methyl-10H-phenothiazin-3-yl)-1,4-pentadien-3-one (BMPPO) were successfully designed and synthesized. PBO and BMPPO have broad absorption range from 350 to 500 nm with the maximum absorption wavelength at 400 nm and 440 nm resp. Three-component photoinitiating system of BMPPO/iodonium/amine was developed for free radical polymerization of acrylates. The results demonstrated that the photoinitiating system displayed rapid polymerization and high final vinyl group conversions under the irradiation of UV-LED (365 nm), blue LED (440) nm and solar light resource. Moreover, photopolymerization kinetics was studied by real-time FT-IR spectrum, the double band conversion was achieved up to 90% for BMPPO. The photocuring mechanism was identified via steady state photolysis and ESR spin-trapping experiments The possible photoinduced mechanism of PBO and BMPPO in the presence of a co-initiator occurred through electron transfer. In addition, BMPPO possesses rapid photobleaching and good biocompatibility performance tested by photoinduced degradation and cytotoxicity experiments resp., which exhibited that BMPPO has potential for light-color coatings and food packaging field.

Progress in Organic Coatings published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Formula: C15H20O6.

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

Zhang, Xixiang published the artcileEffect of an active β-nucleating agent on the crystallization behavior of polypropylene random copolymer, Computed Properties of 31570-04-4, the publication is Journal of Polymer Research (2022), 29(1), 4, database is CAplus.

There are few com. available β-nucleating agents (β-NAs) that can induce Polypropylene random copolymer (PPR) to produce large amounts of β-crystals at present. In this work, we discover that the Zinc Suberate (ZnSA) can effectively induce the formation of β-crystals for PPR and the relative β-crystals content (Kβ) can reach 0.82 when 0.2wt% ZnSA is added. The incorporation of ZnSA significantly decrease the size of spherulite and increase the crystallization rate, which are revealed by polarized optical microscopy (POM) images. Then, the effects of ZnSA on the isothermal and non-isothermal crystallization behavior of PPR at ultra-fast cooling rates and heating rates were investigated by Flash-DSC. Through the isothermal crystallization process, a bimodal relationship between the peak crystallization time and temperature was obtained. When the isothermal crystallization temperature is higher than 36°C, ZnSA significantly increases the crystallization rate of PPR. According to the non-isothermal crystallization, we discover that the addition of ZnSA inhibits the formation of mesophase and the low cooling rate (< 10°C·s^-1) is more beneficial for the formation of β-crystals for PPR. In addition, β-crystals are not suitable to be characterized by rapid heating rate (> 300°C·s^-1) because β-crystals and α-crystals are not distinguished at rapid heating rate. This work is beneficial for deeply understanding the influence of β-NAs on crystallization behavior of PPR and providing guidance for the optimization of industrial production processes.

Journal of Polymer Research published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C18H23OP, Computed Properties of 31570-04-4.

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

Gong, Xia published the artcileSynthesis of adenosine-imprinted microspheres for the recognition of ADP-ribosylated proteins, COA of Formula: C12H17NS2, the publication is Biosensors & Bioelectronics (2017), 858-864, database is CAplus and MEDLINE.

Core-shell structural adenosine-imprinted microspheres were prepared via a two-step procedure. Polystyrene core particles (CP) were firstly prepared via a reversible addition-fragmentation chain transfer (RAFT) polymerization leaving the iniferter on the surface of the cores, then a molecularly imprinted polymer (MIP) shell was synthesized on the surface of the cores by using acrylamide (AAm) as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the cross-linker. The formation and growth of the MIP layer were seen dependent on the initiator (AIBN), AAm and the polymerization time used within the polymerization SEM/TEM images showed that the dimensions of the cores and shells were 2μM and 44 nm, resp. The MIP microspheres exhibited a fast rebinding rate within 2 h and a maximum adsorption capacity of 177μg per g for adenosine. The adsorption fitted a Langmuir-Freundlich (LF) isotherm model with a K_LF value of 41 mL/μg and a q_m value of 177μg/g for the MIP microspheres. The values were larger than those for a non-molecularly imprinted polymer (NIP) particles (5 mL/μg and 88μg/g) indicating a better adsorption ability towards adenosine. The MIP microspheres showed a good selectivity for adenosine with a higher adsorption (683 nmol/g) for adenosine than that (91 nmol/g, 24 nmol/g and 54 nmol/g) for guanosine, cytidine and uridine resp. Further experiment proved that the adenosine-imprinted polymer microspheres also had a good selectivity for ADP-ribosylated proteins that the MIP could extract the ADP-ribosylated proteins from the cell extract samples.

Biosensors & Bioelectronics published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, COA of Formula: C12H17NS2.

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

Jeong, Hyeon Su published the artcileSpontaneous chirality induction and enantiomer separation in liquid crystals composed of achiral rod-shaped 4-arylbenzoate esters, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Journal of the American Chemical Society (2009), 131(41), 15055-15060, database is CAplus and MEDLINE.

The discovery of spontaneously induced chirality and enantiomeric separation in liquid crystal and soft crystal systems composed of achiral rod-shaped 4-arylbenzoate esters is described. Negligibly small CD signals are produced in the smectic A phases of these substances, and the signals were found to increase with increasing smectic order. Since the advent of chirality occurs in freely suspended films, it is not a consequence of surface effects. Both pos. and neg. CD signals are observed with equal probability at different positions in these films. Vibrational CD spectroscopy and theor. calculations are used to analyze the conformational changes that are associated with the induced chirality of the rod-shaped mols. The results show that the phenomenon is caused by the twisting of biphenyl bond associated with the ester moiety in 4-arylbenzoate esters.

Journal of the American Chemical Society 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, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Kashiwabara, Taigo published the artcileDecarbonylative Coupling of Fluorobenzoyl Chlorides with Hexamethyldisilane in the Presence of a Palladium Complex Catalyst: Extremely Facile Decarbonylation of Pentafluorobenzoyl-Pd Complex Relevant to C₆F₅SiMe₃ Formation, Formula: C9H8F2O2, the publication is Organometallics (2006), 25(19), 4648-4652, database is CAplus.

Pd-phosphite complexes (PdCl₂(PhCN)₂ + P(OEt₃)₃ or P(OPr)₃ most effective) catalyze the reaction of pentafluorobenzoyl chloride with hexamethyldisilane to selectively form pentafluorophenyltrimethylsilane as virtually the sole product. The reaction of 3,5-difluoro- or 4-fluorobenzoyl chloride was less selective, giving a mixture of corresponding benzoyl- and phenylsilanes. Oxidative addition of pentafluorobenzoyl chloride with Pd(PPh₃)₄ or with Pd[P(OEt)₃]₂ generated in situ proceeds readily, but decarbonylation occurs, giving trans-C₆F₅PdClL₂ (L = PPh₃, P(OEt)₃), selectively. The crystal and mol. structures of trans-C₆F₅PdCl(PPh₃)₂ were determined by x-ray crystallog.

Organometallics published new progress about 350-19-6. 350-19-6 belongs to esters-buliding-blocks, auxiliary class Fluoride,Benzene,Ester, name is Ethyl 3,5-difluorobenzoate, and the molecular formula is C9H8F2O2, Formula: C9H8F2O2.

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

Chen, Lei published the artcileUnusual microporous polycatenane-like metal-organic frameworks for the luminescent sensing of Ln³⁺ cations and rapid adsorption of iodine, Product Details of C15H14O3, the publication is Chemical Communications (Cambridge, United Kingdom) (2012), 48(47), 5919-5921, database is CAplus and MEDLINE.

Two isostructural 2-dimensional 2-dimensional parallel 3-dimensional inclined interpenetrating polycatenane-like metal-organic frameworks, [Zn₂L¹(H₂O)](NO₃)·DMF (IFMC-10) and [Zn₂L²(H₂O)](NO₃)·0.2DMF (IFMC-11) (H₃L¹ = 4′,4”,4”’-(2,4,6-trimethylbenzene-1,3,5-triyl)tris(methyleneoxy)tribiphenyl-4-carboxylic acid, I) and (H₃L² = 4′,4”,4”’-(2,4,6-trimethylbenzene-1,3,5-triyl) II) were successfully constructed based on length-adjusted tricarboxylate ligands. With the merit of being microporous, IFMC-10 can serve as host for encapsulating lanthanide cations (Eu³⁺, Sm³⁺ and/or Tb³⁺) to exhibit luminescent sensing and rapid adsorption of iodine.

Chemical Communications (Cambridge, United Kingdom) 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, Product Details of C15H14O3.

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