Tag: M.W=250-300

Ghouilem, Juba; Tran, Christine; Grimblat, Nicolas; Retailleau, Pascal; Alami, Mouad; Gandon, Vincent; Messaoudi, Samir published the artcile< Diastereoselective Pd-Catalyzed Anomeric C(sp3)-H Activation: Synthesis of α-(Hetero)aryl C-Glycosides>, Computed Properties of 4098-06-0, the main research area is palladium catalyst stereoselective glycosylation heteroaryl aminoglycoside preparation; aryl aminoglycoside preparation crystal structure arylation stereoselective glycosylation heteroaryl.

Anomeric C-H bond activation is an unsolved long-standing synthetic challenge. Herein, we report a diastereoselective Pd-catalyzed anomeric C(sp3)-H activation methodol. that allows the synthesis of elusive C-(hetero)aryl glycosides with an exclusive α-selectivity.

ACS Catalysis published new progress about Aminoglycosides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 4098-06-0 belongs to class esters-buliding-blocks, and the molecular formula is C12H16O7, Computed Properties of 4098-06-0.

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

Moreira, Denise Ramos; Chaves, Pedro Oribio Bastos; Ferreira, Elano Nery; Arruda, Tathilene Bezerra Mota Gomes; Rodrigues, Francisco Eduardo Arruda; Neto, Joao Francisco Camara; Petzhold, Cesar Liberato; Maier, Martin E.; Ricardo, Nagila Maria Pontes Silva published the artcile< Moringa polyesters as eco-friendly lubricants and its blends with naphthalenic lubricant>, Quality Control of 112-63-0, the main research area is Moringa polyester naphthalenic lubricant blend.

Due to the toxicity and low biodegradability, mineral lubricants have been sharing space with green lubricants. Moringa oleifera can grow naturally in dry regions with subtropical climates and the oil, rich in unsaturated compounds (79.87%), may be a potential feedstock for fuel and lubricant base stocks. Moringa oil was hydrolyzed and then esterified with polyols, trimethylolpropane (MTMPE) and pentaerythritol (MPEE), in the temperature range of 130-140 °C. P-toluene sulfonic acid (p-TSA) was used as the catalyst. The products obtained were characterized using 1H and 13C NMR, IR, and mass spectral techniques. The main physicochem. properties, the thermal behavior and toxicity against Artemia salina of products were evaluated. In addition, blends with the naphthenic lubricant, NH10, were prepared with 20%, 35%, and 50% of the Moringa esters. The synthesized samples have high viscosity indexes (VI = 170) and they were found to be non-toxic against A. salina (LC50>1000 ppm). MTMPE presented higher thermal stability and showed a m.p. of -38.5 °C, which reveals its potential for applications in very low temperatures Blends showed high viscosity indexes and reduced toxicity compared to pure NH10. The study revealed that moringa esters are interesting to be applied as environmental friendly lubricants or additives.

Industrial Crops and Products published new progress about Artemia salina. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

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

Montagner, D.; Fresch, B.; Browne, K.; Gandin, V.; Erxleben, A. published the artcile< A Cu(II) complex targeting the translocator protein: in vitro and in vivo antitumor potential and mechanistic insights>, Computed Properties of 112-63-0, the main research area is copper dindipropylacetamide preparation anticancer translocator protein TSPO.

A new Cu-based anticancer metallodrug which targets the translocator protein is reported. [CuBr2(TZ6)] elicits a remarkable in vitro cytotoxicity in sensitive and multidrug resistant cell lines and induces a 98% reduction of tumor mass in a murine tumor model. Target binding was studied by exptl. and computational methods.

Chemical Communications (Cambridge, United Kingdom) published new progress about Antitumor agent resistance. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

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

Hintermann, Lukas; Schmitz, Marco; Maltsev, Oleg V.; Naumov, Pance published the artcile< Organocatalytic stereoisomerization versus alkene isomerization: catalytic asymmetric synthesis of 1-hydroxy-trans-2,5-diphenylphospholane 1-oxide>, HPLC of Formula: 112-63-0, the main research area is organocatalysis stereoisomerization; catalytic asym synthesis hydroxydiphenyl phospholane oxide; McCormack cycloaddition diarylbutadiene dialkylamino dichlorophosphine; crystal mol structure hydroxydiphenyl phospholane oxide derivative.

The potential for an organocatalytic asym. stereoisomerization or alkene isomerization as atom-economic reaction with minimal structural change was investigated. The McCormack cycloaddition of 1,4-diarylbuta-1,3-dienes with (dialkylamino)dichlorophosphine and aluminum trichloride gives meso-2,5-diaryl-1-(dialkylamino)-1-oxo-2,5-dihydro-1H-phospholes, which were identified as suitable substrates for asym. isomerization to (1R,5R)-2,5-diaryl-1-(dialkylamino)-1-oxo-4,5-dihydro-1H-phospholes in the presence of bifunctional organocatalysts (cinchona alkaloids, Takemoto catalyst) in up to 91% ee and quant. yield. The substrate range and the mechanism of the catalysis were studied. The reaction involves proton abstraction by the base, but a primary deuterium KIE is absent. Enriched (1R,5R)-1-(diethylamino)-1-oxo-2,5-diphenyl-4,5-dihydro-1H-phosphole was hydrolyzed to (5R)-1-hydroxy-1-oxo-2,5-diphenyl-4,5-dihydro-1H-phosphole, which was hydrogenated diastereoselectively under dissolving metal conditions to give (2R,5R)-1-hydroxy-1-oxo-2,5-diphenylphospholane (Fiaud’s acid) in preference to meso-1-hydroxy-1-oxo-2,5-diphenylphospholane. An asym. catalytic total synthesis of Fiaud’s acid, which is a building block for chiral phospholane synthesis, has been realized in five steps from thiophene, using nickel-catalyzed Wenkert arylation, McCormack cycloaddition, asym. dihydro-1H-phosphole isomerization, hydrolysis, and diastereoselective hydrogenation.

Synthesis published new progress about Bifunctional catalysts, organocatalysts. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Nakata, Keisuke; Hatakeyama, Yuto; Erra-Balsells, Rosa; Nonami, Hiroshi; Wada, Hiroshi published the artcile< Dynamics and stabilization mechanism of mitochondrial cristae morphofunction associated with turgor-driven cardiolipin biosynthesis under salt stress conditions>, Formula: C19H34O2, the main research area is mitochondrial cristae morphofunction turgor cardiolipin biosynthesis salt stress.

Maintaining energy production efficiency is of vital importance to plants growing under changing environments. Cardiolipin localized in the inner mitochondrial membrane plays various important roles in mitochondrial function and its activity, although the regulation of mitochondrial morphol. to various stress conditions remains obscure, particularly in the context of changes in cellular water relations and metabolisms By combining single-cell metabolomics with transmission electron microscopy, we have investigated the adaptation mechanism in tomato trichome stalk cells at moderate salt stress to determine the kinetics of cellular parameters and metabolisms We have found that turgor loss occurred just after the stress conditions, followed by the contrasting volumetric changes in mitochondria and cells, the accumulation of TCA cycle-related metabolites at osmotic adjustment, and a temporal increase in cardiolipin concentration, resulting in a reversible topol. modification in the tubulo-vesicular cristae. Because all of these cellular events were dynamically observed in the same single-cells without causing any disturbance for redox states and cytoplasmic streaming, we conclude that turgor pressure might play a regulatory role in the mitochondrial morphol. switch throughout the temporal activation of cardiolipin biosynthesis, which sustains mitochondrial respiration and energy conversion even under the salt stress conditions.

Scientific Reports published new progress about Cardiolipins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

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

Yang, Lanlan; Yang, Chaoran; Chen, Yawei; Pu, Zhichen; Zhang, Zhenzhen; Jie, Yulin; Zheng, Xiang; Xiao, Yunlong; Jiao, Shuhong; Li, Qi; Xu, Dongsheng published the artcile< Hybrid MgCl2/AlCl3/Mg(TFSI)2 Electrolytes in DME Enabling High-Rate Rechargeable Mg Batteries>, COA of Formula: C19H34O2, the main research area is magnesium battery cathode electrolyte aluminum chloride magnesium TFSI; DME electrolyte; conductivity; rechargeable magnesium batteries; volumetric energy.

Rechargeable magnesium batteries (RMBs) are considered as one of the most promising next-generation secondary batteries due to their low cost, safety, dendrite-free nature, as well as high volumetric energy d. However, the lack of suitable cathode material and electrolyte is the greatest challenge facing practical RMBs. Herein, a hybrid electrolyte MgCl2/AlCl3/Mg(TFSI)2 (MACT) in di-Me ether (DME) is developed and exhibits excellent electrochem. performance. The high ionic conductivity (6.82 mS cm-1) and unique solvation structure of [Mg2(μ-Cl)2(DME)4]2+ promote the fast Mg kinetics and favorable thermodn. in hybrid Mg salts and DME electrolyte, accelerating mass transport and the charge transfer process. Therefore, the great rate capability can be realized both in sym. Mg/Mg cell and in CuS/Mg full cell.

ACS Applied Materials & Interfaces published new progress about Activation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

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

Wu, Qi-Fan; Zhao, Bin; Fan, Zhi-Jin; Zhao, Jia-Bao; Guo, Xiao-Feng; Yang, Dong-Yan; Zhang, Nai-Lou; Yu, Bin; Kalinina, Tatiana; Glukhareva, Tatiana published the artcile< Design, synthesis and fungicidal activity of isothiazole-thiazole derivatives>, Formula: C19H34O2, the main research area is Psilocybe Phytophthora isothiazole thiazole derivative fungicidal.

3,4-Dichloroisothiazoles can induce systemic acquired resistance (SAR) to enhance plant resistance against a subsequent pathogen attack, and oxathiapiprolin exhibits excellent anti-fungal activity against oomycetes targeting at the oxysterol-binding protein. To discover novel chems. with systemic acquired resistance and fungicidal activity, 21 novel isothiazole-thiazole derivatives were designed, synthesized and characterized according to the active compound derivatization method. Compound 6u, with EC50 values of 0.046 mg L-1 and 0.20 mg L-1 against Pseudoperonospora cubensis (Berk. et Curt.) Rostov and Phytophthora infestans in vivo, might act at the same target as oxysterol binding protein (PcORP1) of oxathiapiprolin; this result was validated by cross-resistance and mol. docking studies. The expression of the systemic acquired resistance gene pr1 was significantly up-regulated after treating with compound 6u for 24 h (43-fold) and 48 h (122-fold). These results can help the development of isothiazole-thiazole-based novel fungicides.

RSC Advances published new progress about Agrochemical fungicides. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

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

Pilmark, Nanna S.; Oberholzer, Laura; Halling, Jens F.; Kristensen, Jonas M.; Boending, Christina P.; Elkjaer, Ida; Lyngbaek, Mark; Elster, Grit; Siebenmann, Christoph; Holm, Niels F. R.; Birk, Jesper B.; Larsen, Emil L.; Lundby, Anne-Kristine M.; Wojtaszewski, Joergen; Pilegaard, Henriette; Poulsen, Henrik E.; Pedersen, Bente K.; Hansen, Katrine B.; Karstoft, Kristian published the artcile< Skeletal muscle adaptations to exercise are not influenced by metformin treatment in humans: secondary analyses of 2 randomized, clinical trials>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is human skeletal muscle metformin clin trials; AMPK; Complex-1; Complexe-1; ROS; entraînement; exercice; exercise; healthy lean males; hommes maigres en bonne santé; impaired glucose tolerance; interaction; metformin; metformine; muscle squelettique; prediabetes; prédiabète; skeletal muscle; tolérance au glucose altérée; training.

Metformin and exercise both improve glycemic control, but in vitro studies have indicated that an interaction between metformin and exercise occurs in skeletal muscle, suggesting a blunting effect of metformin on exercise training adaptations. Two studies (a double-blind, parallel-group, randomized clin. trial conducted in 29 glucose-intolerant individuals and a double-blind, cross-over trial conducted in 15 healthy lean males) were included in this paper. In both studies, the effect of acute exercise ± metformin treatment on different skeletal muscle variables, previously suggested to be involved in a pharmaco-physiol. interaction between metformin and exercise, was assessed. Furthermore, in the parallel-group trial, the effect of 12 wk of exercise training was assessed. Skeletal muscle biopsies were obtained before and after acute exercise and 12 wk of exercise training, and mitochondrial respiration, oxidative stress and AMPK activation was determined Metformin did not significantly affect the effects of acute exercise or exercise training on mitochondrial respiration, oxidative stress or AMPK activation, indicating that the response to acute exercise and exercise training adaptations in skeletal muscle is not affected by metformin treatment. Further studies are needed to investigate whether an interaction between metformin and exercise is present in other tissues, e.g., the gut. Trial registration: ClinicalTrials.gov (NCT03316690 and NCT02951260). Novelty:Metformin does not affect exercise-induced alterations in mitochondrial respiratory capacity in human skeletal muscle. Metformin does not affect exercise-induced alterations in systemic levels of oxidative stress nor emission of reactive oxygen species from human skeletal muscle. Metformin does not affect exercise-induced AMPK activation in human skeletal muscle.

Applied Physiology, Nutrition, and Metabolism published new progress about Biopsy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Aziz, Nur Atiqah Mohamad; Yunus, Robiah; Hamid, Hamidah Abd; Ghassan, Alsultan Abdul Kareem; Omar, Rozita; Rashid, Umer; Abbas, Zulkifly published the artcile< An acceleration of microwave-assisted transesterification of palm oil-based methyl ester into trimethylolpropane ester>, Application of C19H34O2, the main research area is palm oil fatty acid trimethylolpropane ester preparation transesterification.

Microwave-assisted synthesis is known to accelerate the transesterification process and address the issues associated with the conventional thermal process, such as the processing time and the energy input requirement. Herein, the effect of microwave irradiation on the transesterification of palm oil Me ester (PME) with trimethylolpropane (TMP) was evaluated. The reaction system was investigated through five process parameters, which were reaction temperature, catalyst, time, molar ratio of TMP to PME and vacuum pressure. The yield of TMP triester at 66.9 weight% and undesirable fatty soap at 17.4% were obtained at 130°C, 10 mbar, sodium methoxide solution at 0.6 weight%, 10 min reaction time and molar ratio of TMP to PME at 1:4. The transesterification of palm oil-based Me ester to trimethylolpropane ester was 3.1 folds faster in the presence of microwave irradiation The total energy requirement was markedly reduced as compared to the conventional heating method. The findings indicate that microwave-assisted transesterification could probably be an answer to the quest for a cheaper biodegradable biolubricant.

Scientific Reports published new progress about Activation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

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

Xiang, Hao; Xia, Huiyun; Chen, Huaxin; Mi, Haichen published the artcile< Influence of moisture-curing reaction on the mechanical properties of one-component polyurethane mixtures>, Electric Literature of 112-63-0, the main research area is polyurethane curing reaction mech property.

One-component, moisture-curing polyurethane mixture is a potential cold repair material for pavement because of its simple application method and excellent road performance. However, a large amount of CO2 is produced in the moisture-curing reaction of polyurethane, which destroys the mixture’s interlocked-denseness structure and reduces its mech. properties. In this paper, a one-component polyurethane mixture with AC-13 gradation was prepared, and the mixture used the one-component polyurethane synthesized with diphenylmethane diisocyanate and polyether polyol as the binder. The Marshall stability of the mixture was tested according to polyurethane content, temperature, air humidity, and number of compactions. Results showed that polyurethane content, moisture-curing rate of the polyurethane mixture, and mixture air-void content are key factors affecting the Marshall stability of a polyurethane mixture When the polyurethane content was 5.5%, the polyurethane mixture had the highest mech. strength. As the content of polyurethane increased, more CO2 accumulated in the mixture and the mixture strength decreased. When the polyurethane content was increased by 1.5%, the Marshall stability of the mixture was reduced by 41.8%. The increase of temperature and air humidity accelerated the moisture-curing rate of polyurethane, accelerating the production of CO2, and reducing the Marshall stability of the mixture When the temperature rose from 0 to 60°C and the air relative humidity increased from 30 to 90%, the expansion rate of the mixture increased by 247.55% and 40.08%, resp., while the Marshall stability decreased by 17.8% and 11.16%, resp. At appropriate polyurethane content and curing conditions, a higher number of compactions enhanced the interlocked-denseness structure of the mixture, which improved the Marshall stability. As the number of compactions increased from 40 to 70, the air-void content of the polyurethane mixture was reduced by 44.99%, and the Marshall stability was increased by 157.36%. This paper serves as a reference study for the application of one-component, moisture-curing polyurethane mixtures

Journal of Materials Science published new progress about Absorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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