Category: esters-buliding-blocks

Mommer, Stefan; Keul, Helmut; Moeller, Martin published an article in 2014, the title of the article was Tailored Thiol-Functional Polyamides: Synthesis and Functionalization.Electric Literature of 6038-19-3 And the article contains the following content:

In this article, a synthetic concept for the preparation of polyamides with functional side groups is described. First, the synthesis of a bis(thiolactone) monomer is shown in a concise three-step route from itaconic acid and DL-homocysteine thiolactone. The reactivity of the resulting bis(thiolactone) toward hexyl amine is examined Next, the bis(thiolactone) is reacted as A,A-type monomer with different B,B-type comonomers (1,12-diaminododecane and 1,3-bis(aminopropyl)tetramethyldisiloxane). Ring opening of the thiolactones by the diamines leads to polyamides with pendant thiol groups. Using two diamines in different ratios, the properties of the resulting polyamides are tuned (thermal properties are determined) and different mol. weights are acquired. Subsequently, the thiol groups are reacted with Me acrylate via Michael addition to functionalize the polyamides. Functionalization of thiol-functional polyamides using poly(ethylene glycol) monomethyl ether (mPEG) acrylates (Mn = 480 and 1700 g mol-1) results in water-soluble amphiphilic poly-amides with mol. weights higher than 10 000 g mol-1. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Electric Literature of 6038-19-3

The Article related to synthesis functionalization thiol functional polyamide, michael addition, polyamides, postpolymerization modification, thermal properties, thiols, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Electric Literature of 6038-19-3

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

Imberdis, Thibaut; Fanning, Saranna; Newman, Andrew; Ramalingam, Nagendran; Dettmer, Ulf published an article in 2019, the title of the article was Studying α-synuclein conformation by intact-cell cross-linking.Application of 79642-50-5 And the article contains the following content:

β-Sheet-rich aggregates of α-synuclein (αS) are the hallmark neuropathol. of Parkinson’s disease (PD) and related synucleinopathies, whereas the native conformations of αS in healthy cells are under debate. Crosslinking analyses in intact cells detect a large portion of endogenous αS in apparent multimeric states, most notably as putative tetramers (αS60) that run around 60 kDa on SDS-PAGE, but also point at the dynamic nature of cellular αS states. Standardization of αS crosslinking methods will facilitate efforts to study the effects of genetic, pharmacol., and environmental factors on αS conformation. Here, we present detailed protocols for crosslinking cellular αS multimers in cultured cells and brain tissues. These protocols will benefit future studies aimed at characterizing αS conformation in its cellular environment, both at steady state and upon perturbation, be it chronic or acute. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).Application of 79642-50-5

The Article related to parkinson disease alpha synuclein cell brain, chemical cross-linking, multimer, parkinson’s disease, protein homeostasis, tetramer, α-synuclein, Mammalian Pathological Biochemistry: Nervous System and Psychiatric Diseases and other aspects.Application of 79642-50-5

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

Zhang, Zhen-Yu; Wang, Qian; Hou, Ping-Ping; Shen, Zhihao; Fan, Xing-He published an article in 2015, the title of the article was Effects of rigid cores and flexible tails on the phase behaviors of polynorbornene-based mesogen-jacketed liquid crystalline polymers.Formula: C22H19NO4 And the article contains the following content:

A new series of mesogen-jacketed liquid crystalline polymers (MJLCPs) with a polynorbornene main chain and different side groups were prepared by ring-opening metathesis polymerization The liquid crystalline (LC) phase behaviors of these polymers were investigated by differential scanning calorimetry, polarized light microscopy, and wide-angle X-ray diffraction. Depending on the rigid side-chain core and peripheral alkyl chains, these polymers show different LC structures. The polymer with the terphenyl rigid side-chain core and relatively short alkyl tails is amorphous in the whole temperature range, while those with the same rigid side-chain core but longer alkyl tails exhibit columnar nematic (Coln) phases. Polymers with a longer rigid side-chain core and relatively long alkyl tails develop into smectic A (SmA) phases. In addition, the LC polymers obtained in this study display LC phases in wide temperature ranges. The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).Formula: C22H19NO4

The Article related to polynorbornene mesogen jacketed liquid crystalline polymer phase behavior, ring opening metathesis polymerization thermal property, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Formula: C22H19NO4

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

Holloway, Joshua O.; Aksakal, Suzan; Du Prez, Filip E.; Becer, C. Remzi published an article in 2017, the title of the article was Tailored Modification of Thioacrylates in a Versatile, Sequence-Defined Procedure.Related Products of 6038-19-3 And the article contains the following content:

A strategy for the synthesis of sequence-defined oligomers using a selective side-group insertion approach making use of thiophenol-catalyzed amidation reactions is herein reported. In this context, a new thiolactone-based, multistep, iterative protocol is designed, utilizing thioacrylates in combination with solid-phase synthesis for step-by-step growth, resulting in sequence-defined oligomers. Sequence definition and structure variation are introduced by substituting the thioacrylate side groups with a wide variety of amines. The step-by-step growth of the oligomers is followed by liquid chromatog.-mass spectrometry and high-resolution mass spectroscopy to determine both conversion and purity. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Related Products of 6038-19-3

The Article related to tailored thioacrylate versatile sequence, amidation, sequence-defined polymers, thioacrylate, thiolactone, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Related Products of 6038-19-3

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

On October 31, 2020, Mahmood, Malik H.; Himics, Laszlo; Peter, Laszlo; Baranyai, Peter; Veres, Miklos published an article.Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate) The title of the article was Characterization of luminescent monodisperse microparticles prepared by gamma radiation-initiated polymerization. And the article contained the following:

Fluorescent microparticles have been prepared by gamma radiation-initiated precipitation polymerization of diethylene glycol dimethacrylate monomer with Et propionate solvent and fluorescein isothiocyanate isomer-I (FITC) fluorophore. Different FITC concentrations and irradiation conditions were used, and their effect on the particle properties was studied. The samples were characterized by SEM, Raman and photoluminescence spectroscopies. Our results showed that the size of the microspheres is dependent on the composition of the monomer mixture The uniformity of the microparticles decreases with increasing FITC concentration, relative to the monomer. Changes in the emission spectrum of the FITC were also observed after irradiation The gamma irradiation-initiated polymerization was found to be a promising and simple technique to prepare luminescent spherical microparticles. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

The Article related to acrylic polymer isothiocyanatofluorescein luminescent monodisperse microparticle gamma radiation property, Plastics Manufacture and Processing: Physical Properties and Testing Methods and other aspects.Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

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

On November 2, 2016, Martens, Steven; Van den Begin, Jos; Madder, Annemieke; Du Prez, Filip E.; Espeel, Pieter published an article.Category: esters-buliding-blocks The title of the article was Automated Synthesis of Monodisperse Oligomers, Featuring Sequence Control and Tailored Functionalization. And the article contained the following:

Long, multifunctional sequence-defined oligomers were obtained on solid support from a protecting-group-free two-step iterative protocol, based on the inherent reactivity of a readily available mol. containing an isocyanate and a thiolactone. Aminolysis of the latter entity with an amino alc. liberates a thiol that reacts with an acrylate or acrylamide, present in the same medium. Subsequently, a new thiolactone can be reinstated by means of an α-isocyanato-γ-thiolactone. Different acrylic compounds were used to incorporate diverse functionalities in the oligomers, which were built up to the level of decamers. The reaction conditions were closely monitored in order to fine-tune the applied strategy as well as facilitate the translation to an automated protocol. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Category: esters-buliding-blocks

The Article related to automated synthesis monodisperse oligomer sequence control functionalization thiolactone acrylate, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Category: esters-buliding-blocks

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

On October 24, 2019, Blazquez-Blazquez, Enrique; Barranco-Garcia, Rosa; Cerrada, Maria L.; Perez, Ernesto published an article.Related Products of 3319-31-1 The title of the article was Effect of thermo-oxidation on loss of plasticizers, on crystalline features and on properties in a metallocene isotactic polypropylene. And the article contained the following:

Incorporation of a low content of several plasticizers into a metallocene isotactic polypropylene (iPP) has been performed in order to learn about their stability and performance by the action of a thermo-oxidative degradation treatment at 95 °C for different times. Comparison with the behavior exhibited by the material with di(2-ethylhexyl) phthalate (DEHP) is established for a feasible replacement of its use for contributing to environmental and human health preservation. Dependence of these aggressive degrading conditions on plasticizer loss is analyzed as well as elucidation of degradation influence on the iPP crystalline characteristics. The results show that chem. changes associated with this degradation process hinder formation of the orthorhombic γ crystalline lattice and postpone the overall crystallization capability. Accordingly, the final features in the film surface and the mech. response are significantly affected by degradation time. The TOTM plasticizer can be considered an excellent candidate for DEHP substitution. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Related Products of 3319-31-1

The Article related to metallocene isotactic polypropylene thermal oxidation plasticizer loss crystalline property, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Related Products of 3319-31-1

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

On August 25, 2011, Brain, Christopher Thomas; Cho, Young Shin; Giraldes, John William; Lagu, Bharat; Levell, Julian; Luzzio, Michael; Perez, Lawrence Blas; Wang, Yaping; Yang, Fan published a patent.Recommanded Product: 1198284-94-4 The title of the patent was Preparation of pyrrolopyrimidine derivatives for use as CDK4/6 inhibitors. And the patent contained the following:

Title compounds I [A = CH or N; L = bond, C(O), or S(O)2; R1 = alkyl, (un)substituted cycloalkyl, PH, piperidinyl, or tetrahydropyranyl; R2 = (un)substituted diazabycycloheptanyl, diazaspirononanyl, diazabicyclooctanyl, etc.; R4 = H, D, CH3, etc.; R8, R9, R10, and R11 independently = H or D], and their pharmaceutically acceptable salts, are prepared and disclosed as cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors. Thus, e.g., II was prepared by a multistep procedure (preparation given). Select I were evaluated in CDK4/cyclin D1 enzymic activity assays, e.g., II demonstrated an IC50 value of 0.008 to 0.016 μM. The experimental process involved the reaction of tert-Butyl 1-oxo-2,9-diazaspiro[5.5]undecane-9-carboxylate(cas: 1198284-94-4).Recommanded Product: 1198284-94-4

The Article related to pyrimidine pyrrolo derivative preparation cdk4 cdk6 inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Recommanded Product: 1198284-94-4

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

On September 16, 2004, Gonzales, Jesus E., III; Wilson, Dean Mitchell; Termin, Andreas Peter; Grootenhuis, Peter Diederik Jan; Zhang, Yulian; Petzoldt, Benjamin John; Fanning, Lev Tyler Dewey; Neubert, Timothy Donald; Tung, Roger D.; Martinborough, Esther; Zimmermann, Nicole published a patent.Related Products of 141940-37-6 The title of the patent was Preparation of quinazolines as modulators of ion channels. And the patent contained the following:

The title compounds [I; NR1R2 = (un)substituted 3-12 membered monocyclic or bicyclic (un)saturated ring having 0-3 heteroatoms selected from N, S or O; ring A = (un)substituted 5-7 membered aryl or 8-10 membered bicyclic aryl having 0-3 heteroatoms selected from N, S or O; x = 0-4; R3 = QR (wherein Q = a bond, alkylidene wherein up to two non-adjacent methylene units are optionally replaced by S, O, CS, etc.; R = halo, NO2, CN, etc.)], useful as inhibitors of voltage-gated sodium channels and calcium channels, were prepared Thus, reacting 2-(4-chloro-7-methylquinazolin-2-yl)phenol with 4-aminopiperidine in the presence of Et3N in CH2Cl2 afforded 89% II. Representative compounds I were found to possess desired N-type calcium channel modulation activity and selectivity (no specific data given). Also, representative compounds I were found to possess desired voltage gated sodium channel activity and selectivity (no specific data given). The invention also provides pharmaceutically acceptable compositions comprising the compounds I and methods of using the compositions in the treatment of various disorders. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Related Products of 141940-37-6

The Article related to quinazoline preparation modulator sodium calcium ion channel, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Related Products of 141940-37-6

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

On August 20, 2020, Cao, Ping; Zhang, Chao; Bishop, Michael J. published a patent.Computed Properties of 201811-20-3 The title of the patent was Preparation of novel pyridinylpyrimidines as FGFR inhibitors for the treatment of cancer. And the patent contained the following:

The invention provides the title compounds I [each R1-R5 = (independently) H, F, Cl, Br, alkyl, etc.; R6 = (CH2)0-5CH:CH2, (CH2)0-5CCH, NHCO(CH2)0-5CH:CH2, etc.; Linker = (un)substituted alkyl, COalkyl, CO2alkyl, etc.] or optically pure stereoisomers, solvates, or pharmaceutically acceptable salts thereof with broad inhibitory activity against all FGFR isoforms, and inhibitors with selective inhibition against FGFR4. E.g., a multi-step synthesis of II, starting from 4-amino-3-nitro-phenol and tert-Bu 3-iodoazetidine-1-carboxylate, was described. Exemplified compounds I were evaluated for FGFR inhibition (data given). These novel pyridinylpyrimidine-based FGFR inhibitors, or their derivatives, have strong potential to be used to treat cancer. The experimental process involved the reaction of tert-Butyl (4-hydroxy-2-nitrophenyl)carbamate(cas: 201811-20-3).Computed Properties of 201811-20-3

The Article related to pyridinylpyrimidine preparation fgfr4 inhibitor antitumor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Computed Properties of 201811-20-3

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