Category: 103-26-4

Feng, Yunchao published the artcileHighly dispersed Co/N-rich carbon nanosheets for the oxidative esterification of biomass-derived alcohols: Insights into the catalytic performance and mechanism, Quality Control of 103-26-4, the publication is Journal of Catalysis (2021), 148-155, database is CAplus.

Developing the active and environmentally friendly non-noble nano-catalysts is highly desired to transform biomass-derived platform into value chems. Herein, we report a low-cost and sustainable cobalt/nitrogen-doped carbon catalyst containing both metallic Co and Co-N components exhibits satisfying activity for the oxidative esterification of 5-hydroxymethylfurfural and other investigated alcs. in methanol without the base additive under mild conditions. Exptl. results show that an appropriate ratio of Co to Co-N is responsible for the high activity of the Co/Co-N/CN catalysts towards oxidative esterification. Theor. computational results demonstrate that the Co/Co-N group synergistically promotes electron transfer from the Co adatom to the surface oxygen atoms, facilitates O₂ adsorption and activation on the Co sites, and further reduces the energy barrier for the oxidation of alcs. to aldehydes, all of which contribute to the overall activity of oxidative esterification of alcs. to the corresponding esters. In addition to exhibiting superior intrinsic activity, the as-prepared Co/Co-N/CN catalyst also shows excellent stability and recyclability.

Journal of Catalysis 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 C10H10O2, Quality Control of 103-26-4.

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

Wang, Xiuyun published the artcileHigh-quality evergreen azalea genome reveals tandem duplication-facilitated low-altitude adaptability and floral scent evolution, HPLC of Formula: 103-26-4, the publication is Plant Biotechnology Journal (2021), 19(12), 2544-2560, database is CAplus and MEDLINE.

Azalea belongs to Rhododendron, which is one of the largest genera of flowering plants and is well known for the diversity and beauty in its more than 1000 woody species. Rhododendron contains two distinct groups: the most high-altitude and a few low-altitude species; however, the former group is difficult to be domesticated for urban landscaping, and their evolution and adaptation are little known. Rhododendron ovatum has broad adaptation in low-altitude regions but possesses evergreen characteristics like high-altitude species, and it has floral fragrance that is deficient in most cultivars. Here we report the chromosome-level genome assembly of R. ovatum, which has a total length of 549 Mb with scaffold N50 of 41 Mb and contains 41 264 predicted genes. Genomic micro-evolutionary anal. of R. ovatum in comparison with two high-altitude Rhododendron species indicated that the expansion genes in R. ovatum were significantly enriched in defense responses, which may account for its adaptability in low altitudes. The R. ovatum genome contains much more terpene synthase genes (TPSs) compared with the species that lost floral fragrance. The subfamily b members of TPS are involved in the synthesis of sesquiterpenes as well as monoterpenes and play a major role in flora scent biosynthesis and defense responses. Tandem duplication is the primary force driving expansion of defense-responsive genes for extensive adaptability to the low-altitude environments. The R. ovatum genome provides insights into low-altitude adaptation and gain or loss of floral fragrance for Rhododendron species, which are valuable for alpine plant domestication and floral scent breeding.

Plant Biotechnology Journal 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 C38H24F4O4P2, HPLC of Formula: 103-26-4.

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

El Hassani, Fatima Zahra published the artcileEffect of Olive Mill Wastewater on the composition of the essential oil of bergamot-mint under semi-arid climate, Application In Synthesis of 103-26-4, the publication is Industrial Crops and Products (2022), 114487, database is CAplus.

In this work, we investigate the changes in Mentha aquatica var. citrata (bergamot-mint) characteristics and essential oil composition regarding the modification of the amended dose of Olive Mill Wastewater (OMW) in pots at three different doses; D₁ = 9 mL/100 g, D₂ = 22.5 mL/100 g and D₃ = 54 mL/100 g of soil, seven months before plantation of bergamot-mint cuttings. OMW application didn′t affect plant biomass production (leaves, stems, roots) and chlorophylls in the leaf, while the amount of leaf phenols showed a dose dependent increase. Bergamot-mint essential oil major compound is linalool acetate for control, trans-pulegol when OMW is applied at 9 mL/100 g, isopulegyl acetate when OMW is applied at 22.5 mL/100 g, and verbenone when OMW is applied at 54 mL/100 g. When OMW was applied to soil at doses D₁, D₂ and D₃, some of bergamot-mint essential oil compounds such as decanone, citronellol, piperitone epoxide, guaiacol acetate, Me cinnamate and citronellyl propanoate, totally disappeared. OMW spreading at 9 mL/100 g allowed appearance of menthone in Mentha aquatica var. citrata essential oil while menthol and terpineol appeared only when OMW was applied at the high dose 54 mL/100 g.

Industrial Crops and Products 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 C10H10O2, Application In Synthesis of 103-26-4.

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

Anthony, Paschal Chidera published the artcileSynthesis of some esters of cinnamic acid and evaluation of their in vitro antidiabetic and antioxidant properties, Safety of Methyl 3-phenyl-2-propenoate, the publication is Tropical Journal of Pharmaceutical Research (2022), 21(1), 131-136, database is CAplus.

To synthesize various ester derivatives of cinnamic acid and to evaluate their in vitro antidiabetic and antioxidant properties. Esters of cinnamic acid were synthesized by refluxing the parent compound (cinnamic acid) with different alcs. using concentrated sulfuric acid as a catalyst. Physicochem. analyses (solubility, b.p., refractive index) and spectrophotometric analyses (UV-visible spectroscopy (UV-VIS), Fourier-transform IR spectroscopy (FT-IR) and gas chromatog.-mass spectroscopy (GC-MS)) were carried out on the synthesized products. The antioxidant inhibitory property, uptake of glucose by yeast, and Hb glycosylation of the synthesized products were also evaluated using standard methods. The identities of methylcinnamate, ethylcinnamate, propylcinnamate, 2-propylcinnamate, butylcinnamate and 2-butylcinnamate were confirmed, at m/z ratios of (131,103,77 and M⁺ of162), (131,103,77 and M⁺ of 176), (147,103,77and M⁺ of 190), (147,103,77 and M⁺ of 204), (143, 103, 77 and M⁺ of 190), and finally (147,103,77 and M⁺ of 204) resp. FT-IR results revealed the following important bonds for the synthesized compounds: C=O, C-C, C-O, C=H, C-H and adjacent H. The results for glucose uptake by yeast and of Hb glycosylation test indicate that all the products facilitated the transport and detachment of glucose at varying concentrations, resp. The DPPH scavenging activity of propylcinnamate, 2-butylcinnamate and methylcinnamate with the absorbance of 63.06, 56.85 and 53.06 at 50μg/mL – 250μg/mL, resp., recorded the highest values when compared with the control (ascorbic acid). The results reveal that the six ester derivatives of cinnamic acid exhibit a certain degree of antidiabetic activity by facilitating the uptake of glucose by yeast and reducing glycation of Hb; thus, showing a reasonable level of inhibition against free radicals.

Tropical Journal of Pharmaceutical Research 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 C10H10O2, Safety of Methyl 3-phenyl-2-propenoate.

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

Ranger, Christopher M. published the artcileElectrophysiological and Behavioral Responses of an Ambrosia Beetle to Volatiles of its Nutritional Fungal Symbiont, Name: Methyl 3-phenyl-2-propenoate, the publication is Journal of Chemical Ecology (2021), 47(4-5), 463-475, database is CAplus and MEDLINE.

Ambrosia beetles (Coleoptera: Scolytinae) cultivate their fungal symbiont within host substrates as the sole source of nutrition on which the larvae and adults must feed. To investigate a possible role for semiochems. in this interaction, we characterized electrophysiol. and behavioral responses of Xylosandrus germanus to volatiles associated with its fungal symbiont Ambrosiella grosmanniae. During still-air walking bioassays, X. germanus exhibited an arrestment response to volatiles of A. grosmanniae, but not antagonistic fungi Beauveria bassiana, Metarhizium brunneum, Trichoderma harzianum, the plant pathogen Fusarium proliferatum, or malt extract agar. Solid phase microextraction-gas chromatog.-mass spectrometry identified 2-ethyl-1-hexanol, 2-phenylethanol, Me benzoate and 3-methyl-1-butanol in emissions from A. grosmanniae; the latter two compounds were also detected in emissions from B. bassiana. Concentration-responses using electroantennog. documented weak depolarizations to A. grosmanniae fungal volatiles, unlike the comparatively strong response to ethanol. When tested singly in walking bioassays, volatiles identified from A. grosmanniae elicited relatively weak arrestment responses, unlike the responses to ethanol. Xylosandrus germanus also exhibited weak or no long-range attraction to the fungal volatiles when tested singly during field trials in 2016-2018. None of the fungal volatiles enhanced attraction of X. germanus to ethanol when tested singly; in contrast, 2-phenylethanol and 3-methyl-1-butanol consistently reduced attraction to ethanol. Volatiles emitted by A. grosmanniae may represent short-range olfactory cues that could aid in distinguishing their nutritional fungal symbiont from other fungi, but these compounds are not likely to be useful as long-range attractants for improving detection or mass trapping tactics.

Journal of Chemical Ecology 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 C10H10O2, Name: Methyl 3-phenyl-2-propenoate.

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

Steingass, Christof B. published the artcileInfluence of fruit logistics on fresh-cut pineapple (Ananas comosus [L.] Merr.) volatiles assessed by HS-SPME-GC-MS analysis, Synthetic Route of 103-26-4, the publication is European Food Research and Technology (2021), 247(7), 1617-1630, database is CAplus.

Green-ripe pineapples are shipped overseas by sea freight, while those picked at full maturity need to be transported by airfreight over the same large distance. In this study, fresh-cut pineapple cubes were assessed two, five, and eight days after processing from green-ripe pineapples after mimicked sea freigh (SF) and fully ripe air-freighted (AF) pineapples. The sea-freighted samples displayed elevated titratable acidity (TA), thus resulting in smaller ratios of total soluble solids and TA compared to the AF pineapples. Differences in the carotenoid levels of the two fresh-cut categories were found to be insignificant. By contrast, hierarchical cluster anal. (HCA) and principal component anal. (PCA) calculated on the basis of the volatiles analyzed by headspace solid-phase microextraction-gas chromatog.-mass spectrometry (HS-SPME-GC-MS) permitted to distinguish all six individual sample types and to segregate them into two major clusters (SF and AF). The effect of storage on the volatiles was further evaluated by partial least squares (PLS) regression. Substantial chem. markers to differentiate the individual samples and to describe the effect of storage were deduced from the PCA and PLS regression, resp. In general, fresh-cut products obtained from fully ripe AF fruit displayed higher concentrations of volatiles, in particular, increased concentrations of diverse Me esters. With progressing storage duration, the concentrations of ethanol and diverse Et esters increased. Moreover, products from AF pineapples displayed lower microbial counts compared to those from SF fruit.

European Food Research and Technology 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 C12H23N3S, Synthetic Route of 103-26-4.

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

Haag, Franziska published the artcileThe key food odorant receptive range of broadly tuned receptor OR2W1, HPLC of Formula: 103-26-4, the publication is Food Chemistry (2022), 131680, database is CAplus and MEDLINE.

Mammals perceive a multitude of odorants by their chem. sense of olfaction, a high-dimensional stimulus-detection system, with hundreds of narrowly or broadly tuned receptors, enabling pattern recognition by the brain. Cognate receptor-agonist information, however, is sparse, and the role of broadly tuned odorant receptors for encoding odor quality remains elusive. Here, we screened IL-6-HaloTag-OR2W1 and haplotypes against 187 out of 230 defined key food odorants using the GloSensor system in HEK-293 cells, yielding 48 new agonists. Altogether, key food odorants represent about two-thirds of now 153 reported agonists of OR2W1, the highest number of agonists known for a mammalian odorant receptor. In summary, we characterized OR2W1 as a human odorant receptor, with a chem. diverse but exclusive receptive range, complementary to chem. subgroups covered by evolutionary younger, highly selective receptors. Our data suggest OR2W1 to be suited for participating in the detection of many foodborne odorants.

Food Chemistry 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 C10H10O2, HPLC of Formula: 103-26-4.

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

Zhang, Boran published the artcileMolecular mechanism of Gleditsiae Spina for the treatment of high-grade serous ovarian cancer based on network pharmacology and pharmacological experiments, Recommanded Product: Methyl 3-phenyl-2-propenoate, the publication is BioMed Research International (2022), 5988310, database is CAplus and MEDLINE.

Gleditsiae Spina, widely used in traditional Chinese medicine, has a good curative effect on malignant tumors such as ovarian cancer, but the mechanism is not clear. So, we aimed to analyze the pharmacol. mechanism of Gleditsiae Spina in the treatment of high-grade serous ovarian cancer (HGSC) based on network pharmacol. and biol. experiments The main active ingredients of Gleditsiae Spina were identified by high performance liquid chromatog. (HPLC) and mass spectrometry (MS), and the active ingredients were performed by ADME screening. The component targets of Gleditsiae Spina were screened using the PharmMapper platform, and differentially expressed genes in normal and HGSC tissues were identified through the GEO database. Thereafter, the network of “active ingredient-targets” was constructed by cytoscape 3.7.2 software. The protein-protein interaction network was established by the BioGenet database to mine the potential protein function. Biol. processes and pathways were analyzed through Gene Ontol. and Kyoto Encyclopedia of Genes and Genomes anal. The binding ability of the core components of the Gleditsiae Spina and the core target of HGSC was verified by mol. docking and mol. dynamics simulation, and the therapeutic effect of Gleditsiae Spina was proved in vitro through cytotoxicity experiments The effect of Gleditsiae Spina on the core pathway is obtained by western blotting. Gleditsiae Spina had cytotoxicity on HGSC based on network pharmacol. and biol. experiments Luteolin, genistein, D-(+)-tryptophan, ursolic acid, and berberine are the identified core active ingredients of Gleditsiae Spina for regulating HGSC, with HPSE, PI3KCA, AKT1, and CTNNB1as the ideal targets. The prediction results were verified by mol. docking, mol. dynamic simulation, cell viability, and western blot anal. Gleditsiae Spina mainly downregulates the expression of heparanase and β-catenin to affect the composition of tumor cytoplasmic matrix and can regulate the PI3K-AKT pathway, integrating multiple targets and multiple pathways to play a therapeutic role. It also provides a theor. basis for the prevention of ovarian cancer and its treatment using traditional Chinese medicine in the future.

BioMed Research International 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 C20H17FO4S, Recommanded Product: Methyl 3-phenyl-2-propenoate.

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

Fuller, Ioan D. published the artcileChemical diversity of kanuka: Inter- and intraspecific variation of foliage terpenes and flavanones of Kunzea (Myrtaceae) in Aotearoa/New Zealand, Synthetic Route of 103-26-4, the publication is Phytochemistry (Elsevier) (2022), 113098, database is CAplus and MEDLINE.

Kunzea (Myrtaceae) trees and shrubs, generally called kanuka, grow across most of Aotearoa/New Zealand (NZ). With the exception of K. sinclairii, an offshore island endemic, kanuka had been treated as an Australasian species K. ericoides. However, a 2014 taxonomic revision recognized ten species, all endemic to NZ. Kanuka chem. is less studied than that of its closest relative in NZ, manuka (Leptospermum scoparium), which shows very distinct regional foliage chemotypes. We have used a miniaturized method with GC and 1H NMR to analyze foliage chem. of voucher specimens from across the geog. ranges of the ten NZ Kunzea species. We found common mono- and sesquiterpenes, with α-pinene dominant in all samples, but only traces of antimicrobial triketones. Two unusual flavanones, with unsubstituted B-rings and known bioactivity against Phytophthora, did distinguish some of the samples. 5,7-Dihydroxy-6,8-dimethyl flavanone was only found at high concentrations in the three K. sinclairii samples in this study’s sample set, but this compound has sep. been reported in K. robusta samples from a nearby region. Therefore none of the NZ Kunzea species was distinguished by the chem. analyzed in this study, but there is a possibility of regional flavonoid chemotypes cutting across the species boundaries.

Phytochemistry (Elsevier) 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 C10H10O2, Synthetic Route of 103-26-4.

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

Han, Jun-Hua published the artcileTailored amino/hydroxyl bifunctional microporous organic network for efficient stir bar sorptive extraction of parabens and flavors from cosmetic and food samples, Quality Control of 103-26-4, the publication is Journal of Chromatography A (2021), 462521, database is CAplus and MEDLINE.

As an effective sample pretreatment approach, stir bar sorptive extraction (SBSE) has shown great prospects in static microextraction and selective enrichment. In this work, bifunctional microporous organic network (B-MON) with the coexistence of amino and hydroxyl groups was firstly designed and synthesized as a novel coating for efficient SBSE of parabens and flavors in combination with high-performance liquid chromatog. coupled with photodiode array detection (HPLC-PDA). Linked by covalent bonds to form an extension of the aromatic ring skeleton, B-MON was a tailored adsorbent featured by porous structure and abundant hydrogen bonding sites for analytes with benzene/naphthalene rings and -OH/-COOH groups. The extraction and desorption parameters were evaluated in detail. Under the optimized conditions, the proposed B-MON-SBSE-HPLC-PDA method offered good linearity (0.10-100μg L-1) with correlation coefficients R2 ≥ 0.995, low limits of detection (0.010-0.035μg L-1) and limits of quantification (0.035-0.115μg L-1), and favorable enrichment factors (40-49). Furthermore, the developed method has been applied to the anal. of parabens and flavors in cosmetic and food samples with recoveries ranging from 80.4 to 109.6%. This method was also feasible to extract the analytes with benzene/naphthalene rings and -OH/-COOH groups, such as the plant growth regulators and non-steroidal anti-inflammatory drugs. The present study provided a new way to synthesize bifunctional MONs for SBSE of trace analytes in complex samples.

Journal of Chromatography A 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 C10H10O2, Quality Control of 103-26-4.

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