Category: 123-25-1

Tang, Ke; Sun, Yulu; Zhang, Xiaoqian; Li, Jiming; Xu, Yan published an article in 2021, the title of the article was Chemical and Sensory Characterization of Vidal Icewines Fermented with Different Yeast Strains.Electric Literature of 123-25-1 And the article contains the following content:

The aim of this study is to comprehensively investigate the aroma composition and sensory attributes of Vidal icewine fermented with four yeast strains (ST, K1, EC1118, and R2). A total of 485 kinds of volatile components were identified by comprehensive two-dimensional gas chromatog.-time of flight mass spectrometry, among which 347 kinds of volatile compounds were the same in four kinds of sample. The heat map was conducted with 156 volatile compounds, which have aroma contributions, and the anal. results identified the characteristics of the aroma composition of icewine fermented with different yeasts. Quant. descriptive anal. was performed with a trained panel to obtain the sensory profiles. The aroma attributes of honey and nut of the icewine fermented by R2 were much higher than others. Partial least squares discriminant anal. further provided 40 compounds that were mainly responsible for the differences of the aroma characteristics of the icewines fermented by four yeasts. This study provides more data on the current status of Vidal icewines by main com. yeasts. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Electric Literature of 123-25-1

The Article related to icewine volatile compound aroma fermentation, Fermentation and Bioindustrial Chemistry: Methods (Including Analysis) and other aspects.Electric Literature of 123-25-1

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

On September 27, 2022, Koelsch, Jonas C.; Berac, Christian M.; Lossada, Francisco; Stach, Oliver S.; Seiffert, Sebastian; Walther, Andreas; Besenius, Pol published an article.Computed Properties of 123-25-1 The title of the article was Recyclable Vitrimers from Biogenic Poly(itaconate) Elastomers. And the article contained the following:

We report a biobased vitrimer prepolymer that is synthesized from renewable itaconic acid and platform chems. The polyitaconate vinyl prepolymers are transferred into transesterification-based vitrimer materials after a curing step with two different cross-linkers. Bifunctional lactone cross-linkers enable faster curing kinetics compared to linear diesters at the same catalyst loading and reaction temperature The rheol. properties of the obtained vitrimer materials are easily controlled by the amount and nature of the cross-linker, and by the loading of the guanidine organocatalyst for transesterification. An increase in catalyst content leads to shorter relaxation times and lower apparent activation energies of the transesterification reactions. The materials show elastomeric properties and can easily be recycled. Up to this point, sustainable vitrimers were largely limited to epoxy-based networks. Herein, we describe a multifunctional and sustainable vinyl monomer-based prepolymer system that can be integrated into polymers using facile free radical polymerization, whose vitrimer network properties can be conveniently adjusted. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Computed Properties of 123-25-1

The Article related to recyclable vitrimer biogenic polyitaconate elastomer, Synthetic Elastomers and Natural Rubber: Physical Properties and Testing and other aspects.Computed Properties of 123-25-1

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

On July 31, 2021, Aguzin, Federico L.; Martinez, Maria L.; Beltramone, Andrea R.; Padro, Cristina L.; Okulik, Nora B. published an article.Related Products of 123-25-1 The title of the article was Esterification of Succinic Acid Using Sulfated Zirconia Supported on SBA-15. And the article contained the following:

Catalytic esterification of succinic acid with ethanol to obtain di-Et succinate (DES), a nontoxic plasticizer, is reported. Three sulfated zirconias supported on SBA-15 [SZ-SBA-15(X)] with Si/Zr molar ratios (X) of 10, 20, and 30 were synthesized and characterized. N2 adsorption/desorption isotherms and X-ray diffraction patterns evidenced preservation of the ordered mesoporous structure of the catalysts after incorporation of Zr. Yields of DES greater than 85% were obtained at the final reaction time by using SZ-SBA-15(10) and SZ-SBA-15(20) catalysts, which were higher than those achieved with Amberlyst 36. Reuse of the SZ-SBA-15(20) catalyst showed that, even though the structure of the support was preserved, decreases in sulfur concentration and in the DES yield occurred. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Related Products of 123-25-1

The Article related to esterification succinate sulfated zirconia supported sba15, Plastics Manufacture and Processing: Processing Of Monomers and Additives and other aspects.Related Products of 123-25-1

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

On April 30, 2022, Pekel, Ayse Gizem; Kurtulbas, Ebru; Toprakci, Irem; Sahin, Selin published an article.Formula: C8H14O4 The title of the article was Menthol-based deep eutectic solvent for the separation of carbamazepine: reactive liquid-liquid extraction. And the article contained the following:

Abstract: Menthol-based deep eutectic liquid has been used for the reactive liquid-liquid extraction of the carbamazepine from its aqueous solution after it was synthesized by heating and mixing. Di-Et succinate was used as diluent, while deep eutectic liquid was the extractant. Several deep eutectic liquids containing menthol and carboxylic acids (acetic acid and formic acid) with different molar ratios (1/1 and 1/2) were composed. pH, d., viscosity, and refractive index values of the designed deep eutectic liquids were measured. Furthermore, Fourier transform IR spectroscopy method was also applied into the deep eutectic liquids for characterization. Deep eutectic liquid increased the extraction performance of the diluent from 11 to 36% comparing to the untreated one. The proposed system (menthol/acetic acid with 1/1 of molar ratio) has extracted more than 90% of the target pharmaceutical compound from its aqueous solution in 30 min. The concentration of extractant in the diluent, initial carbamazepine content in aqueous media, and ionic intensity have influenced the reactive liquid-liquid extraction Depending on the thermodn. outcome, the transfer process of carbamazepine from aqueous phase into hydrophobic phase is an endothermic and spontaneous in nature. It has been also observed to be a separation process with a structure that tends to be irregular. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Formula: C8H14O4

The Article related to menthol eutectic solvent carbamazepine liquid extraction, Phase Equilibriums, Chemical Equilibriums, and Solutions: Nonelectrolytic Solutions and other aspects.Formula: C8H14O4

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

On March 31, 2022, Al-Dalali, Sam; Zheng, Fuping; Sun, Baoguo; Rahman, Talmizur; Chen, Feng published an article.Product Details of 123-25-1 The title of the article was Tracking volatile flavor changes during two years of aging of Chinese vinegar by HS-SPME-GC-MS and GC-O. And the article contained the following:

Aging is an essential step for enriching the aroma profiles of Chinese vinegar. This study aimed to track the volatile flavor changes in the same batch of Chinese vinegar for the first time during two years of aging with the aid of HS-SPME-GC-MS. The aroma-active compounds were characterized at 0, 6, and 12 mo of aging using GC-O coupled with a modified frequency method. A total of 67 volatile compounds and 30 aroma-active compounds were identified during the different stages of aging. Most alcs., esters, ketones, acids, and phenols decreased during the aging from 628.4, 105.4, 132.1, 22.1, and 21.4μg/L at 0 mo to 228.7, 7.2, 9.69, 17.24, and 11.6μg/L at 24 mo sep., except aldehydes and pyrazines, which showed slight increases. Many aroma-active compounds were generated during the aging, such as methional, trimethylpyrazine, acetophenone, and 2-acetyl-3-ethylpyrazine, while pyrazines were formed during 24 mo of aging. Three aroma-active compounds with high odor activity values (OAVs) showed significant contributions to the aroma profile of vinegar, which included isovaleric acid (2743, 340, and 3139), 4-ethylguaiacol (580, 429, and 516), and γ-nonalactone (324, 640, and 442) at 0, 6, and 12 mo of aging, resp. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Product Details of 123-25-1

The Article related to tracking volatile flavor chinese vinegar aging hsspme gcms gco, Food and Feed Chemistry: Additives, Sweeteners, Flavorings, Condiments, and Confectionery and other aspects.Product Details of 123-25-1

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

On February 13, 2020, Yang, Long; Huang, Yujie; Peng, Yuting; Liu, Fei; Zhang, Qingchun; He, Huichao; Wang, Jun; Jiang, Long; Zhou, Yong published an article.Recommanded Product: 123-25-1 The title of the article was Pyridine-Diketopyrrolopyrrole-Based Novel Metal-Free Visible-Light Organophotoredox Catalyst for Atom-Transfer Radical Polymerization. And the article contained the following:

In the field of electronics, organocatalysts are in high demand for use in the synthesis of clean polymers using solar radiation rather than potentially contaminating metals. Combining theor. design, simulation, and experiments, this work presents a novel, pyridine-diketopyrrolopyrrole (P-DPP)-based metal-free visible-light organophotoredox catalyst (P-DPP). It is effective in the photocontrolled organocatalytic atom-transfer radical polymerization (O-ATRP) of Me methacrylate (MMA) and styrene. The use of this catalyst and white light-emitting diode (LED) irradiation produces polymers with a crosslinked feature. In O-ATRP, the P-DPP catalyst has an oxidative quenching catalytic mechanism with an excited-state reductive potential of -1.8 V, fluorescence lifetime of 7.5 ns, and radical-cation oxidative potential of 0.45 V. Through mol. simulation, we found that the adjacent pyridine group is key to reducing the alkyl halide initiator and generating radicals, while the diketopyrrolopyrrole core stabilizes the triplet state of the catalyst through intramol. charge transfer. The findings related to this novel photoredox catalyst will aid in the search for much more effective organophotoredox catalysts for use in controlled radical polymerization They will also be of value in the fields of polymer chem. and physics and in various applications. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Recommanded Product: 123-25-1

The Article related to pyridine diketopyrrolopyrrole visible light organophoto redox catalyst atrp, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Recommanded Product: 123-25-1

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

Humphreys, Joshua; Pop, Flavia; Hume, Paul A.; Murphy, Alanna S.; Lewis, William; Davies, E. Stephen; Argent, Stephen P.; Amabilino, David B. published an article in 2021, the title of the article was Solid state structure and properties of phenyl diketopyrrolopyrrole derivatives.Related Products of 123-25-1 And the article contains the following content:

In this study, the single crystal X-ray structures of diketopyrrolopyrroles (DPPs) I [R1 = n-hexyl, (S)-EtCHMeCH2, t-BuOCO; R2 = H, HO, MeO, t-BuOCO2, 2-tetrahydropyranyloxy] is reported to show how subtle changes in the substituent chains at side or end positions of the chromophore can led to very different packing. The effects of the nature of both the alkyl chain and the aryl unit on the optical properties in solid and solution states have been studied. Importantly, for the three families of N-substituted compounds studied, the structures were changed by the conformation of the mols. and were apparently dominated by crystal packing effects where edge-to-face interactions were favored rather than π stacking, with only one of the compounds showing a flat form, promoted by intermol. contacts between the aromatic regions. Therefore the twist between DPP and Ph units in crystals of DPPs resulted from edge-to-face interactions (rather than steric interactions between the N-substituent and the protons attached to the aromatic ring) that overcome in more extended structures. Hydrogen bonding dominated the packing to generate chains of DPP units for phenol derivatives Remote bulky groups affected the core conformation. The emission of the materials as thin films was dominated by local effects in the packing of the materials that were unique for each case as the structures are distinct from one another. Charge mobility (as calculated from the crystal structures) was not favored because of twisted conformations and large displacement, but sometimes high emission and large Stokes shift made the materials interesting for other purposes, such as light emitters. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Related Products of 123-25-1

The Article related to phenyl diketopyrrolopyrrole preparation chromophore crystal structure photophys electronic, Heterocyclic Compounds (More Than One Hetero Atom): Fused-Ring Systems With Two Or More Hetero Atoms, No More Than One Hetero Atom Per Ring and other aspects.Related Products of 123-25-1

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

On June 30, 2022, Jia, Wei; Di, Chenna; Zhang, Rong; Shi, Lin published an article.Name: Diethyl succinate The title of the article was Ethyl carbamate regulate esters degradation by activating hydrolysis during Baijiu ripening. And the article contained the following:

The presence of Et carbamate in traditional fermented food is a public health concern for the FDA. The effect of forced photoirradiation (0-150,000 lx) and thermal stress (4, 25, 40 °C) on Et carbamate (0-150 μg/L) on physiol. characteristics of Baijiu, such as esters content, photochem. degradation, and hydrogen-bond interaction efficiency were monitored by ultra high performance liquid chromatog. quadrupole-orbitrap and the dynamic changes by digital foodomics anal. Furthermore, 748 trace components covering 11 subclasses were identified in Baijiu and 71 esters were screened by Spearman′s correlation, fold changes, P values and VIP values. A forward stepwise multiple regression and discriminant anal. were performed for predicting the content of esters from appearance characteristics obtained by foodomics anal., reaching R-square values up to 0.91. A reduction of the present variation in Et lactate, Et caproate, di-Et succinate, Et oleate and Et linoleate concentration could possibly result in a better understanding of the Et carbamate effects. Et carbamate was found to cause esters hydrolysis through inter-mol. interaction in various species of alc. drinks. It was demonstrated that the light exposure level and thermal intensity applied for Et carbamate-spiked Baijiu samples did not unambiguously influence esters concentration in Baijiu. Future research should focus on moderate light exposure level and thermal stress and should aim at reducing natural Et carbamate by more closely controlling the esters content of the ripening degree. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Name: Diethyl succinate

The Article related to baijiu ripening ethyl carbamate ester degradation hydrolysis, baijiu, esters, light exposure, molecular mechanism, photochemical degradation, thermal stress, uhplc-q-orbitrap and other aspects.Name: Diethyl succinate

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

On January 13, 2021, Padgaonkar, Suyog; Eckdahl, Christopher T.; Sowa, Jakub K.; Lopez-Arteaga, Rafael; Westmoreland, Dana E.; Woods, Eliot F.; Irgen-Gioro, Shawn; Nagasing, Benjamin; Seideman, Tamar; Hersam, Mark C.; Kalow, Julia A.; Weiss, Emily A. published an article.Safety of Diethyl succinate The title of the article was Light-Triggered Switching of Quantum Dot Photoluminescence through Excited-State Electron Transfer to Surface-Bound Photochromic Molecules. And the article contained the following:

This paper describes reversible “on-off” switching of the photoluminescence (PL) intensity of CdSe quantum dots (QDs), mediated by photochromic furylfulgide carboxylate (FFC) mols. chemisorbed to the surfaces of the QDs. Repeated cycles of UV and visible illumination switch the FFC between “closed” and “open” isomers. Reversible switching of the QDs’ PL intensity by >80% is enabled by different rates and yields of PL-quenching photoinduced electron transfer (PET) from the QDs to the resp. isomers. This difference is consistent with cyclic voltammetry measurements and d. functional calculations of the isomers’ frontier orbital energies. This work demonstrates fatigue-resistant modulation of the PL of a QD-mol. complex through remote control of PET. Such control potentially enables applications, such as all-optical memory, sensing, and imaging, that benefit from a fast, tunable, and reversible response to light stimuli. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Safety of Diethyl succinate

The Article related to light triggered switching quantum dot photoluminescence excited state electron, responsive nanomaterials, electron transfer, photochromic molecules, photoswitch, quantum dots and other aspects.Safety of Diethyl succinate

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

On August 31, 2022, Perpetuini, Giorgia; Rossetti, Alessio Pio; Battistelli, Noemi; Zulli, Camillo; Cichelli, Angelo; Arfelli, Giuseppe; Tofalo, Rosanna published an article.Name: Diethyl succinate The title of the article was Impact of vineyard management on grape fungal community and Montepulciano d′Abruzzo wine quality. And the article contained the following:

In this study the effect of farming practices on the diversity of grape fungal community of Vitis vinifera L. cultivar Montepulciano and the microbial metabolic activity was investigated. Small-scale vinifications were performed and wines were characterized. Agronomic management system affected the fungal community composition Hanseniaspora, Areobasidium and Botrytis genera represented 30%, 20% and 10% of the total reads in all samples. A. pullulans, and Cladosprium cladosporioides mainly occurred on organic and biodynamic grapes. Saccharomyces and Pseudopithomyces genera were present only on organic or biodynamic grapes, resp. The agronomic managements also influenced the potential functionality of microbial community. In fact, the metabolic function was increased in organic and biodynamic grapes. Polymers were used only by organic and biodynamic microbial communities, which also showed the highest values of Shannon ′s diversity index, and substrate richness. However, no significative differences were observed for the oenol. parameters analyzed, with the only exception of the content of sugars which were higher on conventional grapes. The fermentation profiles showed that conventional wines had a lower residual sugars content, and a higher amount of alc. The differences observed in the volatile composition of the wines were both quant. and qual. Conventional wines showed a lower content of esters, and a higher concentration of alcs. than organic and biodynamic ones. Biodynamic wines were characterized by the highest content of organic acids. The obtained results revealed that farming practices shape the fungal community influencing wine traits linking the wine with the viti-vinicultural area of origin. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Name: Diethyl succinate

The Article related to montepulciano dabruzzo wine quality grape fungal community vineyard management, fungal community, montepulciano d’abruzzo wine, organic volatile compounds, vineyard managements and other aspects.Name: Diethyl succinate

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