Tag: M.W=200-250

Quan, Qinzhi published the artcileVisible-Light-Enabled Organocatalyzed Controlled Alternating Terpolymerization of Perfluorinated Vinyl Ethers, Computed Properties of 3052-61-7, the publication is Angewandte Chemie, International Edition (2021), 60(37), 20443-20451, database is CAplus and MEDLINE.

Polymerizations of perfluorinated vinyl ethers (PFVEs) provide an important category of fluoropolymers that have received considerable interests in applications. In this work, we report the development of an organocatalyzed controlled radical alternating terpolymn. of PFVEs and vinyl ethers (VEs) under visible-light irradiation This method not only enables the synthesis of a broad scope of fluorinated terpolymers of low dispersities and high chain-end fidelity, facilitating tuning the chem. compositions by rationally choosing the type and/or ratio of comonomers, but also allows temporal control of chain-growth, as well as the preparation of a variety of novel fluorinated block copolymers. To showcase the versatility of this method, fluorinated alternating terpolymers were synthesized and customized to simultaneously display a variety of desirable properties for solid polymer electrolyte design, creating new opportunities in high-performance energy storage devices.

Angewandte Chemie, International Edition 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, Computed Properties of 3052-61-7.

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

Han, Guibiao published the artcileBehavioral response of male Ancylis sativa to sex pheromone, Recommanded Product: (Z)-Dodec-9-en-1-yl acetate, the publication is Kunchong Xuebao (2001), 44(2), 176-181, database is CAplus.

The behavioral response of individual male Ancylis sativa Liu to synthetic sex pheromone components, E9-12:Ac and Z9-12:Ac was observed in a wind tunnel. The lures containing only E9-12:Ac could stimulate males to perform all the typical behaviors including excitation, taking off, flying upwind, landing on the lure and exhibiting their hairpencils, while none of them showed any response to Z9-12:Ac. 71.7-76.7% Of the males displayed their hairpencils in response to the mixture of these two components (E accounting for 60-65%). The pheromone (E:Z=6.5:3.5) from 200 ng to 2000 ng per lure caused more male response than that of 20 ng or 20000 ng.

Kunchong Xuebao 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 C14H26O2, Recommanded Product: (Z)-Dodec-9-en-1-yl acetate.

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

Han, Guibiao published the artcileThe sex pheromone communication system of adult jujube leafroller Ancylis sativa Liu, Product Details of C14H26O2, the publication is Kunchong Xuebao (1999), 42(1), 5-30, database is CAplus.

The titer and precise ratio of multi-components of A. sativa sex pheromone were determined by using anal. technique of single sex pheromone gland. The results showed that: (1) the female sex pheromone contained 2 isomers, i. e. E9-12:Ac and Z9-12:Ac; and (2) the sex pheromone production of females had a diel periodicity. The female moths began to produce sex pheromone at the onset of the scotophase and the quantity increased gradually. Pheromone production peak occurred at the 6.5 h of the 2nd scotophase, and the pheromone titers released by females of various generations are different. The pheromone titer released by females of the overwintering generation or the 2nd generation was much higher than that of the 1st generation, but the ratios of the 2-isomeric components in different generations were the same.

Kunchong Xuebao 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 C14H26O2, Product Details of C14H26O2.

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

Du, Xuyang published the artcileMolecular design directs self-assembly of DPP polycatenars into 2D and 3D complex nanostructures, Application of Propyl 3,4,5-trihydroxybenzoate, the publication is Journal of Molecular Liquids (2022), 118605, database is CAplus.

Novel diketopyrrolopyrrole (DPP) based polycatenars characterized with a long π-conjugated rigid calamitic core, different side groups (t-Boc, H or PEO) at the lactam N atoms of the central DPP core and terminal hydrophobic paraffinic chains were prepared via Sonogashira coupling reaction as key steps. The influence of different side groups, different links and the length of terminal alkyl chains on the properties of these DPP derivatives was discussed. Such DPP polycaternars can self-assemble into bicontinuous cubic phase (Cub_v/Ia3d) and hexagonal columnar phase (Col_hex) in their pure states, as well as organogels in solution UV and PL spectra investigation reveals that these compounds can display broad and strong absorption in the region of 275-650 nm and can emit in the NIR region (650-850 nm) with low energy gap (1.94 ev), meanwhile ICT effects have been detected between such DPP polycaternars and C70, indicating the potential application of these compounds in solar cell.

Journal of Molecular Liquids 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, Application of Propyl 3,4,5-trihydroxybenzoate.

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

Grant, G. G. published the artcileSex attractants for some eastern species of Rhyacionia, including a new species, and Eucosma gloriola (Lepidoptera: Tortricidae), Computed Properties of 16974-11-1, the publication is Canadian Entomologist (1985), 117(12), 1489-96, database is CAplus.

Field-screening tests using dodecenyl and dodecadienyl acetates and alcs. were conducted in pine plantations in northern Ontario to find attractants for Rhyacionia and Eucosma moths. R. adana Was attracted by various ratios of (E)-9-dodecenyl acetate  [35148-19-7] and (E)-9-dodecen-1-ol  [35237-62-8] (99:1 to 70:30) but no clear preference was observed R. busckana Was attracted to the same ratios of these compounds R. granti Was attracted to (E,E)-8,10-dodecadienyl acetate  [53880-51-6]. R. granti And R. busckana are newly recognized sibling species distinguished in this study by differences in their resp. attractants, electroantennogram responses, and phenologies. E. gloriola, Was optimally attracted by 9:1 and 8:2 ratios of (Z)-9-dodecenyl acetate  [16974-11-1] and (E)-9-dodecenyl acetate. Flight data for the 4 species in the same plantation revealed overlapping flight periods. R. granti Was the earliest flier, followed closely by R. adana and R. busckana, and somewhat later by E. gloriola.

Canadian Entomologist 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 C14H26O2, Computed Properties of 16974-11-1.

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

Venthur, Herbert published the artcileStructural investigation of selective binding dynamics for the pheromone-binding protein 1 of the grapevine moth, Lobesia botrana, Computed Properties of 16974-11-1, the publication is Archives of Insect Biochemistry and Physiology (2019), 101(3), n/a, database is CAplus and MEDLINE.

The European grapevine moth, Lobesia botrana (Denis & Schiffermuller), is a serious pest in vineyards in North and South America. Mating disruption techniques have been used to control and monitor L. botrana on the basis of its sexual communication. This needs a well-tuned olfactory system, in which it is believed that pheromone-binding proteins (PBPs) are key players that transport pheromones in the antennae of moths. In this study, the selectivity of a PBP, named as LbotPBP1, was tested by fluorescence binding assays against 11 sex pheromone components and 6 host plant volatiles. In addition, its binding mechanism was predicted on the basis of structural analyses by mol. docking and complex and steered mol. dynamics (SMD). Our results indicate that LbotPBP1 binds selectively to sex pheromone components over certain host plant volatiles, according to both in vitro and in silico tests. Thus, chain length (14 carbon atoms) and functional groups (i.e., alc. and ester) appear to be key features for stable binding. Likewise, residues such as Phe12, Phe36, and Phe118 could participate in unspecific binding processes, while Ser9, Ser56, and Trp114 could participate in the specific recognition and stabilization of sex pheromones instead of host plant volatiles. Moreover, our SMD approach supported 11-dodecenyl acetate as the best ligand for LbotPBP1. Overall, the dynamics simulations, contact frequency anal. and SMD shed light on the binding mechanism of LbotPBP1 and could overcome the imprecision of mol. docking, supporting the in vitro binding assays. Finally, the role of LbotPBP1 in the chem. ecol. of L. botrana is discussed.

Archives of Insect Biochemistry and Physiology 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 C15H21BO3, Computed Properties of 16974-11-1.

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

Aparna Lakshmi, I. published the artcileHistone deacetylase inhibitors in cancer therapy: an update, Product Details of C10H18O4, the publication is International Journal of Pharmaceutical Sciences Review and Research (2011), 10(1), 38-44, database is CAplus.

A review. Histone deacetylase inhibitors (HDACi) are novel class of anti-neoplastic agents and they mostly act by enhancing acetylation of histones, and promotes uncoiling of chromatin and activation of a large number of genes implicated in the regulation of cell survival like proliferation, differentiation and apoptosis. Most of them are therapeutic targets for cancer, neurodegenerative diseases and a number of other disorders. The histone deacetylases (HDACs) can be divided into two families, which include a total of eleven enzymes. The Zn⁺² dependent HDAC family composed of class I (HDACs 1, 2, 3 and 8), class II a/b (HDACs 4, 5, 6, 7, 9 and 10), and class IV (HDAC 11) and (2) Zn⁺² independent NAD-dependent class III SIRT enzymes. Histone deacetylase inhibitors (HDACi) which are been investigated for their antitumor potency are of with different chem. structures i.e Short-chain fatty acids (e.g. sodium butyrare), phenylburyrare, valproic acid and (AN-9), Hydroxyaminic acids (SAHA, pyroxamide, TSA, oxamflarin and CHPAs), Synthetic benzamide derivatives (e.g., MS-275 and Cl-994), Cyclic tetrapeptides (such as depsipeptide, trapoxin and apicidin), Electrophilic ketones (trifluoromethylketone), and Miscellaneous (depudecin, SNDX-275 and isothiocyanates). HDACi can have multiple mechanisms of inducing transformed cell growth arrest and cell death. These HDAC substrates are directly or indirectly involved in numerous important cell pathways including control of gene expression, regulation of cell proliferation, differentiation, migration, and death. As a consequence, HDACi can have multiple mechanisms of inducing transformed cell growth arrest and cell death. HDACi can be used in combination with radiation therapy, antitubulin agents, topoisomerase I and II inhibitors etc.

International Journal of Pharmaceutical Sciences Review and Research published new progress about 122110-53-6. 122110-53-6 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester,Inhibitor, name is (Pivaloyloxy)methyl butyrate, and the molecular formula is C10H18O4, Product Details of C10H18O4.

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

Garcia, Caroline A. published the artcileEffects of crude protein and sodium intake on water turnover in cats fed extruded diets, SDS of cas: 121-79-9, the publication is Journal of Animal Physiology and Animal Nutrition (2021), 105(S2), 95-105, database is CAplus and MEDLINE.

The comprehension of strategies to increase urine production may be important, especially in kibble diets to prevent urolithiasis in cats. The effects of increasing amounts of crude protein (CP) and sodium on the water turnover of cats were evaluated using the water balance (WB) method and the deuterium dilution technique. The study followed a randomized block design, with three blocks of eight cats, two cats per food type in each block, and six cats per food. Four extruded diets with different amounts of CP and sodium were evaluated (on DM basis): 28% CP and 0.58% sodium; 39% CP and 0.64% sodium; 52% CP and 0.76% sodium; and 64% CP and 0.87% sodium. Cats were individually housed in cages for 8 days to measure WB, urea excretion, and faecal and urine characteristics. Deuterium oxide was used to evaluate water turnover, and during the period cats were housed in a collective cattery. The data were analyzed by an F test, and the means were compared by polynomial contrasts. The level of significance was set at 0.05. The methods were compared by Pearson correlation, and Bland and Altman anal. The increase in the CP content elevated linearly the renal excretion of urea (p < .001), and, together with the higher sodium intake, elevated the renal solute load, which resulted in a linear increase in urine production and water intake (p < .01). The urine d., metabolic water, and faecal and insensible water losses did not differ (p > .05). The water flux increased linearly when using the deuterium method (p < .001), but the obtained values were 20.85 ± 11.11 mL/cat/day higher than those verified using the WB method (p = .001). Higher CP and sodium amounts in dry diets increased the urine production and water consumption of cats, and this can be explored as a possible option to increase urination.

Journal of Animal Physiology and Animal Nutrition 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, SDS of cas: 121-79-9.

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

Lu, Yongling published the artcileInhibitory Activity on the Formation of Reactive Carbonyl Species in Edible Oil by Synthetic Polyphenol Antioxidants, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate, the publication is Journal of Agricultural and Food Chemistry (2021), 69(32), 9025-9033, database is CAplus and MEDLINE.

Food lipids play an important role in food quality, and their attributes contribute to texture, flavor, and nutrition. However, high-temperature processing leads to lipid peroxidation, degradation, and the formation of reactive carbonyl species (RCS), such as acrolein (ACR), glyoxal (GO), and methylglyoxal (MGO). We investigated the changes in the peroxidation value (POV), Rancimat induction time, formation and total amount of RCS, and inhibitory effects of synthetic polyphenol antioxidants on ACR/GO/MGO in plant oils during heating processing through an accelerated oxidation test using Rancimat. With increasing temperature and heating time, the amounts of ACR, GO, and MGO in oil increased and the level of ACR was about several times higher than that of GO and MGO. We also found that some amounts of ACR, GO, and MGO were produced at the initial stage before reaching the peak value of POV, even before oil oxidative rancidity, and the common antioxidant Bu hydroxyanisole (BHA)/butylated hydroxytoluene (BHT) could not remove them once they were generated. This is first time to purify PG-ACR-MGO and elucidate the structure based on anal. of their high resolution mass spectrometry and ¹H, ¹³C, and two-dimensional NMR. We further found that PG rather than BHT and BHA efficiently trapped ACR, OG, and MGO to form adducts in oil and roasted beef burgers with corn oil. Addnl., after incubation at 80°C, the trapping order of PG was as follows: ACR, MGO, and GO, and the adduct of PG-ACR was formed within 1 min; after 10 min, PG-MGO was generated; and three adducts formed at 15 min. However, PG could not trap ACR, GO, or MGO to form adducts at room temperature This study provided novel knowledge to advance our understanding of the ability of synthetic polyphenol antioxidants to scavenge RCS simultaneously, such as ACR, MGO, and GO. Our findings demonstrated that PG, as an inhibitor of RCS, is suitable for medium- and high-temperature food processing but not for normal-temperature storage.

Journal of Agricultural and Food Chemistry 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, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate.

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

Zhang, Weixin published the artcilePolymer stabilized cholesteric liquid crystal siloxane for temperature-responsive photonic coatings, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is International Journal of Molecular Sciences (2020), 21(5), 1803, database is CAplus and MEDLINE.

Temperature-responsive photonic coatings are appealing for a variety of applications, including smart windows. However, the fabrication of such reflective polymer coatings remains a challenge. In this work, we report the development of a temperature-responsive, IR-reflective coating consisting of a polymer-stabilized cholesteric liquid crystal siloxane, applied by a simple bar coating method. First, a side-chain liquid crystal oligosiloxane containing acrylate, chiral and mesogenic moieties was successfully synthesized via multiple steps, including preparing precursors, hydrosilylation, deprotection, and esterification reactions. Products of all the steps were fully characterized revealing a chain extension during the deprotection step. Subsequently, the photonic coating was fabricated by bar-coating the cholesteric liquid crystal oligomer on glass, using a mediator liquid crystalline mol. After the UV-curing and removal of the mediator, a transparent IR reflective polymer-stabilized cholesteric liquid crystal coating was obtained. Notably, this fully cured, partially crosslinked transparent polymer coating retained temperature responsiveness due to the presence of non-reactive liquid-crystal oligosiloxanes. Upon increasing the temperature from room temperature, the polymer-stabilized cholesteric liquid crystal coating showed a continuous blue-shift of the reflection band from 1400 nm to 800 nm, and the shift was fully reversible.

International Journal of Molecular Sciences 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 C5H10O2S, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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