Category: esters-buliding-blocks

On October 31, 2015, Leslie, G.; Rutter, A.; Pollard, A.; Davis, J.; Matovic, D. published an article.Reference of (Trimethoxymethyl)benzene The title of the article was The effects of weathering on the pyrolysis of low-carbon fuels: Railway ties and asphalt shingles. And the article contained the following:

Creosote-treated wooden railway ties and roofing asphalt shingles are discarded in large quantities and may be significant sources of energy; however, they may have rotted or oxidized, and the chem. changes that result from such weathering could affect their behavior as a fuel or pyrolysis feedstock. Such changes in railway tie wood, and roofing asphalt shingles were studied by identifying isothermal 250 and 550 °C pyrolysis products (pyrolyzates) with pyrolysis-gas chromatog./mass spectrometry (py-GC/MS). Poplar wood pyrolysis was also studied and compared to existing literature to establish a reference scenario; identified poplar wood pyrolyzates assisted in the anal. of railway tie and asphalt shingle pyrolyzates. Poplar pyrolyzates included the products of polysaccharide ring-breaking and lignin pyrolysis, confirming one of the two competing low-temperature pyrolysis models. Railway tie pyrolyzates showed few signs of bacterial degradation or oxidation, indicating that the tie considered here did not undergo extensive weathering. Roofing asphalt pyrolyzates included many carbonyl, hydroxyl, and ether functionalized cyclic species, as well as sulfur dioxide; these pyrolyzates indicate extensive and preferential oxidation of cyclic carbon and sulfur. The experimental process involved the reaction of (Trimethoxymethyl)benzene(cas: 707-07-3).Reference of (Trimethoxymethyl)benzene

The Article related to weathering waste fuel railway tie asphalt shingle pyrolysis, Electrochemical, Radiational, and Thermal Energy Technology: Energy Sources and other aspects.Reference of (Trimethoxymethyl)benzene

Referemce:
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Ester – an overview | ScienceDirect Topics

On April 22, 2010, Sugita, Kazuyuki; Ota, Masahiro published a patent.Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate The title of the patent was Preparation of tricyclic heteroaryl compounds as squalene synthase inhibitors. And the patent contained the following:

Title compounds, e.g., I [or their pharmacol. acceptable salts], etc., were prepared For example, reaction of Et [(trans)-7-chloro-5-[3-methoxy-2-(trifluoromethyl)phenyl]-2-thioxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-3-yl]acetate (preparation given) with NH2NH2·H2O followed by cyclization with trifluoroacetic anhydride, separation using chiral HPLC and hydrolysis afforded (4R,6R)-I. In squalene synthase inhibition assays, the IC50 value of (4R,6R)-I was 0.88 nM. The invention compounds are claimed useful for the treatment of hypercholesterolemia, hyperlipidemia, etc. Pharmaceutical composition comprising (4R,6R)-I is disclosed. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

The Article related to tricyclic heteroaryl preparation squalene synthase inhibitor, hypercholesterolemia hyperlipidemia treatment tricyclic heteroaryl preparation squalene synthase inhibition, Heterocyclic Compounds (More Than One Hetero Atom): Other 7-Membered Rings and other aspects.Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

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

On July 8, 2010, Sugita, Kazuyuki; Otsuka, Masaki; Oki, Hitoshi; Haginoya, Noriyasu; Ichikawa, Masanori; Ota, Masahiro; Shibata, Norihiro published a patent.Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate The title of the patent was Preparation of tricyclic heteroaryl compounds as squalene synthase inhibitors. And the patent contained the following:

Title compounds, e.g., I [or pharmaceutically acceptable salts or solvates thereof], etc., were prepared For example, reaction of compound II (preparation given) with NH2NH2·H2O followed by in-situ treatment with trifluoroacetic anhydride, de-allylation, ethylation, and hydrolysis afforded compound I. In squalene synthase inhibition assays, the IC50 of I was 0.98 nM. The invention compounds are claimed useful for the treatment of hypercholesterolemia, hyperlipidemia, etc. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

The Article related to tricyclic heteroaryl preparation squalene synthase inhibitor, hypercholesterolemia hyperlipidemia treatment tricyclic heteroaryl preparation squalene synthase inhibition, Heterocyclic Compounds (More Than One Hetero Atom): Other 7-Membered Rings and other aspects.Name: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

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

On May 6, 2010, Sugita, Kazuyuki; Otsuka, Masaki; Oki, Hitoshi; Haginoya, Noriyasu; Ichikawa, Masanori; Ota, Masahiro; Shibata, Norihiro published a patent.Formula: C12H14F3NO2 The title of the patent was Preparation of tricyclic heteroaryl compounds as squalene synthase inhibitors. And the patent contained the following:

Title compounds, e.g., I [or pharmaceutically acceptable salts or solvates thereof], etc., were prepared For example, reaction of compound II (preparation given) with NH2NH2·H2O followed by in-situ treatment with trifluoroacetic anhydride, de-allylation, ethylation, and hydrolysis afforded compound I. In squalene synthase inhibition assays, the IC50 of I was 0.98 nM. The invention compounds are claimed useful for the treatment of hypercholesterolemia, hyperlipidemia, etc. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Formula: C12H14F3NO2

The Article related to tricyclic heteroaryl preparation squalene synthase inhibitor, hypercholesterolemia hyperlipidemia treatment tricyclic heteroaryl preparation squalene synthase inhibition, Heterocyclic Compounds (More Than One Hetero Atom): Other 7-Membered Rings and other aspects.Formula: C12H14F3NO2

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

On April 24, 2020, Ren, Yanwei; Yue, Chenglong; Jiang, Huanfeng published a patent.Category: esters-buliding-blocks The title of the patent was Zirconium-based MOF catalyst loaded with dual active sites, preparation method thereof and application in catalyzing tandem alcohol oxidation/aldehyde cyanosilicate reaction. And the patent contained the following:

The invention discloses a zirconium based MOF catalyst loaded dual active sites, a preparation method and application thereof, which has high-efficiency catalytic activity in series alc. oxidation/aldehyde cyanosilicate reaction. The method includes: adding zirconium salt and organic ligand into organic solvent, using organic acid as regulator, self-assembly reaction, obtaining metal organic framework; adding salicylaldehyde to carry out aldehyde amine condensation to obtain chelating coordination site, adding palladium salt, carrying out coordination by immersion method; reducing the obtained MOF in hydrogen to obtain MOF loaded with Pd nanoparticles; reacting MOF with zinc salt in organic solvent, the catalyst is obtained. The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).Category: esters-buliding-blocks

The Article related to load zinc zirconium metal organic framework catalyst preparation, zirconium metal organic framework catalyst alc oxidation aldehyde cyanosilicate, Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms: Catalysts and other aspects.Category: esters-buliding-blocks

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

On June 17, 2005, Mutti, Stephane; Malpart, Joel; Lavigne, Michel published a patent.Recommanded Product: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate The title of the patent was Method for preparation of thiazolo[3,4,5-de][4,1]benzothiazepines via direct cyclization of tert-butyl 2-hydroxymethylphenylcarbamates with thioglycolic acid in the presence of p-toluenesulfonic acid. And the patent contained the following:

The invention is related to the preparation of the well-known anticonvulsants thiazolo[3,4,5-de][4,1]benzothiazepine derivatives, in particular I•MeSO3H and II•MeSO3H, and their enantiomers and pharmaceutically acceptable salts via direct cyclization of 2-hydroxymethyl phenylcarbamates, e.g. tert-Bu 2-hydroxymethylphenylcarbamate (III) with thioglycolic acid (IV) in the presence of p-toluenesulfonic acid. The advantages include reduced number of steps and simple purification Thus, was prepared, in 58% global yield, in 8 steps: (1) BOC-protection of 4-trifluoromethylaniline with di-tert-Bu dicarbonate; (2) formylation with DMF; (3) reduction of the aldehyde with NaBH4; (4) cyclization of III with IV in the presence of p-toluenesulfonic acid in toluene; (5) reduction of amide V with NaBH4 in the presence of MeSiCl/THF; (6) cyclization of tetrahydrobenzothiazepine with KSCN in the presence of Br2/AcOH; (7) oxidation of thiazolobenzothiazepine with O3 in CH3CN/H2O; (8) methanesulfonate formation by treatment with MeSO3H in acetone/H2O. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Recommanded Product: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

The Article related to thiazolobenzothiazepine preparation cyclization hydroxymethylphenylcarbamate thioglycolic acid toluenesulfonic acid catalyst, Heterocyclic Compounds (More Than One Hetero Atom): Other 7-Membered Rings and other aspects.Recommanded Product: tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

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

Okten Besli, Nur Sena; Orakdogen, Nermin published an article in 2020, the title of the article was Charge-balanced terpolymer poly(diethylaminoethyl methacrylate-hydroxyethyl methacrylate-2-acrylamido-2-methyl-propanesulfonic acid) hydrogels and cryogels: scaling parameters and correlation with composition.COA of Formula: C12H18O5 And the article contains the following content:

The scaling laws relating the preparation conditions to the swelling degree, reduced modulus and effective crosslinking d. of poly(diethylaminoethyl methacrylate-co-hydroxyethyl methacrylate-co-2-acrylamido-2-methyl-propanesulfonic acid), henceforth designated as PDHA, gels prepared by radical crosslinking copolymerization in a solvent mixture were reported. Charge-balanced terpolymer PDHA hydrogels and cryogels (PDHA-Hgs and Cgs) were prepared in different monomer feed compositions The swelling dependence of the reduced modulus was described by a power law relationship Gr â‰?(φv)mwith an exponent of m = -0.30 at low swelling degree, while in the high swelling region the scaling becomes 0.21, indicating the finite extensibility of the network chains. The scaling exponent for the swelling degree and terpolymer composition, φv â‰?(Nν2)m, was found to be -0.13, indicating the increasing extent of the topol. constraints arising from the trapped entanglements. By combining elasticity and swelling results, the scaling relationship between the apparent crosslink d. and HEMA content used in the terpolymer feed was obtained as a cubic polynomial of the mol% of HEMA. In the HEMA-rich terpolymer PDHA Hgs and Cgs, the swelling degree was possibly controlled by the HEMA part of the terpolymer network, while the presence of DEAEM units in the network triggered the thermoresponsive swelling behavior. The dependence of interaction parameter χ on the volume fraction of the crosslinked terpolymer network in the swollen gel ν2 was evaluated and the results revealed extremely strong concentration dependence of χ for all terpolymer samples. Because of their inherent properties, the resulting terpolymer gels might contribute to the improvement of the loading capacity of polymers used in anticancer drug delivery systems. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).COA of Formula: C12H18O5

The Article related to hydroxylethyl methacrylate dmaem acrylamidomethyl propanesulfonic acid hydrogel cryogel swelling, Physical Properties of Synthetic High Polymers: Polymer Solutions and Gels and other aspects.COA of Formula: C12H18O5

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

Kumar, T. E. Mohan; Saritha, S. Reena; Shamshuddin, S. Z. Mohamed; Vasantha, V. T.; Pratap, S. R. published an article in 2018, the title of the article was Synthesis of salicylate esters over cordierite honeycomb monoliths coated with zirconia based solid acids in vapour phase.Safety of Phenyl Salicylate And the article contains the following content:

Solid acid catalysts such as ZrO2, Mo(VI)/ ZrO2, Pt-SO42-/ ZrO2 has been coated on honeycomb monoliths and characterized for their physico-chem. properties such as total surface acidity by NH3-TPD, crystalinity by powder XRD, functionality by FT-IR and morphol. by SEM techniques. These solid acid catalytic materials are employed in the vapor phase transesterification of Me salicylate with different alcs. The catalytic property of these solid acids has been correlated with their physico-chem. properties. These catalytic materials are found to be very efficient in the transesterification reaction with up to �8% yield of the desired transester. Reaction conditions are optimized to get highest possible yield of the desired transester. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Safety of Phenyl Salicylate

The Article related to zirconia coated honeycomb monolith catalyst crystalinity salicylate ester transesterification, Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms: Catalysts and other aspects.Safety of Phenyl Salicylate

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

On February 28, 2021, Okten Besli, Nur Sena; Orakdogen, Nermin published an article.Synthetic Route of 2358-84-1 The title of the article was Design of weakly cationic alco-cryogels consisting of poly(alkylmethacrylates)-based sulfonated terpolymer network with tunable multiresponsive assembly. And the article contained the following:

Cryogels with ion-, and solvent-responsiveness have been designed by cryogelation of 2-(diethylamino)ethyl methacrylate (DEAEMA) as weakly cationic monomer, hydroxyethyl methacrylate as neutral comonomer and 2-acrylamido-2-methyl-1-propanesulfonic acid as anionic termonomer in ethanol-water mixture (50:50 volume/volume), which had been proved to offer a good miscibility of monomers. Influence of composition of terpolymer and polymerization temperature on the properties of terpolymer cryogels (Cgels) and hydrogels (Hgels) were evaluated by swelling kinetics, and response against rapid ionic strength change. Swelling of terpolymer networks in the form of Cgel and Hgel decreased with increase in the size of ions present in swelling medium and followed the order of swelling behavior Cl- > Br- > I-. Terpolymer alcogels exhibited salting-out behavior in the presence of Cl- and Br- ions, while “salting-in” behavior was observed in KI solutions of high concentrations Sensitivity sequence of terpolymer alcogels to mono- and di-valent cations with a common anion (SO42-) on swelling was Na+ > K+ > Mg2+> Zn2+. Swelling data agree well with second-order kinetic model and with increasing amount of DEAEMA in terpolymer feed, diffusion mechanism changed from non-Fickian type to Fickian diffusion. In ionic environments, the salt-sensitivity and excellent water absorption/retention capability give this intelligentized terpolymer gels wide potential applications. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Synthetic Route of 2358-84-1

The Article related to polyalkylmethacrylate sulfonated terpolymer cryogel hydrogel salting out swelling kinetics, Physical Properties of Synthetic High Polymers: Polymer Solutions and Gels and other aspects.Synthetic Route of 2358-84-1

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

On September 14, 2021, Zhang, Jian; Li, Siyu; Wang, Zhigang; Liu, Peng; Zhao, Youliang published an article.Application of 6038-19-3 The title of the article was Multitunable Thermoresponsive and Aggregation Behaviors of Linear and Cyclic Polyacrylamide Copolymers Comprising Heterofunctional Y Junctions. And the article contained the following:

The incorporation of asym. Y junctions into thermoresponsive polymers allows access to hierarchical self-assembly, and self-assembly of cyclic polymers can further amplify the topol. effect. At present, systematic insights into the influence of Y junctions on physicochem. properties remain at the early stage. A diversity of linear and cyclic polyacrylamide copolymers with substituent-variable Y junctions are designed to reveal the effects of topol., chain length, composition, concentration, and temperature With the increasing size of substituents, copolymer aqueous solutions gradually shift from dual upper and lower critical solution temperatures (UCST/LCST) to a single LCST until the lack of phase transition. The LCST can be elevated by introduction of a cyclic architecture, longer polymer chain, and smaller substituent. Owing to the changes in degree of hydration of subunits, heat can induce sphere-vesicle-nanosheet-nanoribbon-sphere (linear copolymer) and sphere-nanosheet-nanoribbon (cyclic copolymer) transitions. In addition, the cyclization effect is also reflected in cooperative hydration of distinct subunits upon heating, higher ceiling temperatures to form stable lamellae, and more pronounced hysteresis of the turbidity curve upon cooling. This research using Y junction bearing thermoresponsive copolymers may provide a promising platform to achieve on-demand phase transitions and nanostructures. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Application of 6038-19-3

The Article related to multitunable thermoresponsive aggregation behavior linear cyclic polyacrylamide copolymer, Physical Properties of Synthetic High Polymers: Polymer Solutions and Gels and other aspects.Application of 6038-19-3

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