Category: 50670-76-3

Schultz, T. Wayne published the artcileStructure-activity relationships for gene activation oestrogenicity: evaluation of a diverse set of aromatic chemicals, Name: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Environmental Toxicology (2002), 17(1), 14-23, database is CAplus and MEDLINE.

Structure-activity relationships for estrogenicity were developed based on 120 aromatic chems. evaluated in the Saccharomyces cerevisiae-based Lac-Z reporter assay. Relative gene activation was compared to 17β-estradiol and varied over eight orders of magnitude. Anal. of the data compared to 17β-estradiol identified three structural criteria that were related to xenoestrogen activity and potency: (1) the hydrogen-bonding ability of the phenolic ring mimicking the A-ring, (2) a hydrophobic center similar in size and shape to the B- and C-rings, and (3) a hydrogen-bond donor mimicking the 17β-hydroxyl moiety of the D-ring, especially with an oxygen-to-oxygen distance similar to that between the 3- and 17β-hydroxyl groups of 17β-estradiol. Binding data were segregated into activity clusters including strong, moderate, weak, and detectable gene expression, and those compounds that were inactive. The hydrogen-bonding ability of hydroxy group in the 3-position on 17β-estradiol was observed to be essential for gene activation. Compounds with a 4-hydroxyl substituted benzene ring and a hydrophobic moiety of size and shape equivalent to the B-ring of 17β-estradiol were generally observed to be weakly active compounds Moderately active compounds have a 4-hydroxyl substituted benzene ring with a hydrophobic moiety equivalent in size and shape to the B- and C-ring of 17β-estradiol, or have a high hydrogen-bond donor capacity owing to the presence of halogens on a nonphenolic ring. Strongly active compounds, similar to 4,4′-diethylethylene bisphenol (DES), possess the same hydrophobic ring structure as described for moderately active compounds and an addnl. hydroxyl group with an oxygen-to-oxygen distance close to that exhibited by the 3- and 17-hydroxyl groups of 17β-estradiol.

Environmental Toxicology published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C8H6F3NO, Name: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Bergkamp, Jesse J. published the artcileSynthesis and characterization of silicon phthalocyanines bearing axial phenoxyl groups for attachment to semiconducting metal oxides, Safety of Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Journal of Porphyrins and Phthalocyanines (2011), 15(9-10), 943-950, database is CAplus.

A series of axial phenoxy substituted octabutoxy silicon phthalocyanines bearing Et carboxylic ester and di-Et phosphonate groups have been prepared from the corresponding phenols in pyridine. Axial bis-hydroxy silicon phthalocyanine was prepared using an adaptation of a reported protocol from the octabutoxy free-base phthalocyanine. The phenols bear either carboxylic ester or phosphonate groups, which upon deprotection can serve as anchoring groups for attaching the phthalocyanines to semiconducting metal oxides used in dye sensitized solar cells (DSSCs). All the phthalocyanines of the series absorb in the near infra-red region: 758-776 nm. The first oxidation potential for each phenoxy derivative occurs near 0.55 V vs. SCE as measured by cyclic voltammetry, with all falling within a 10 mV range. This indicates that these dyes will have sufficient energy in the photo-excited state to drive the reduction of protons to hydrogen. Taking into account the absorption and electrochem. potentials, these dyes are promising candidates for use in dual-threshold photo-electrochem. cells.

Journal of Porphyrins and Phthalocyanines published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Safety of Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Trollss, Mikael published the artcileNovel Thermally Stable Polymer Materials for Second-Order Nonlinear Optics, Product Details of C15H14O3, the publication is Macromolecules (1996), 29(7), 2590-8, database is CAplus.

A novel method of preparing thermally stable thin films with intrinsic second-order nonlinear optical activity is described. Design and synthesis yielded new ferroelec. bifunctional liquid crystalline acrylate monomer mixtures with a fast electro-optical response in the chiral smectic C (SmC*) phase. The ferroelec. liquid crystalline monomer mixtures were poled and subsequently cross-linked by in-situ photopolymerization in the surface-stabilized ferroelec. liquid crystal state. After crosslinking the polarization is no longer reversible, hence the material is pyroelec. and not ferroelec. The cross-linked pyroelec. materials displayed a thermally stable nonlinear optical response.

Macromolecules published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C18H26ClN3O, Product Details of C15H14O3.

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

Artal, C. published the artcileSHG Characterization of Different Polar Materials Obtained by in Situ Photopolymerization, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Macromolecules (2001), 34(12), 4244-4255, database is CAplus.

The structural, thermal, and nonlinear optical (NLO) parameters of chiral polyacrylates containing biphenyl moieties and various polar groups were studied. The side-chain polymers, anisotropic networks, and gels, were prepared by in situ photopolymerization of the precursors in the ferroelec. SmC* liquid crystal phase. The effects of structure, crosslinker content, and degree of mobility of a common NLO-phore on the second harmonic generation (SHG) activity were studied to identify the best mol. structure toward practical applications. Slight improvements in the SHG d_ij coefficient of the polymeric materials was observed, compared to that of the low mol. weight precursor. The side-chain polymers and low crosslinking polymers are the most interesting materials from the point of view of both the NLO-activity and the ease of synthesis. These two types of materials provide stable room temperature thin films displaying SHG and electrooptic (EO) responses without the application of a poling field.

Macromolecules published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Liu, Huanxiang published the artcileIn silico screening of estrogen-like chemicals based on different nonlinear classification models, Related Products of esters-buliding-blocks, the publication is Journal of Molecular Graphics & Modelling (2007), 26(1), 135-144, database is CAplus and MEDLINE.

Increasing concern is being shown by the scientific community, government regulators, and the public about endocrine-disrupting chems. that are adversely affecting human and wildlife health through a variety of mechanisms. There is a great need for an effective means of rapidly assessing endocrine-disrupting activity, especially estrogen-simulating activity, because of the large number of such chems. in the environment. In this study, quant. structure activity relationship (QSAR) models were developed to quickly and effectively identify possible estrogen-like chems. based on 232 structurally-diverse chems. (training set) by using several nonlinear classification methodologies (least-square support vector machine (LS-SVM), counter-propagation artificial neural network (CP-ANN), and k nearest neighbor (kNN)) based on mol. structural descriptors. The models were externally validated by 87 chems. (prediction set) not included in the training set. All three methods can give satisfactory prediction results both for training and prediction sets, and the most accurate model was obtained by the LS-SVM approach through the comparison of performance. In addition, our model was also applied to about 58,000 discrete organic chems.; about 76% were predicted not to bind to estrogen receptor. The obtained results indicate that the proposed QSAR models are robust, widely applicable and could provide a feasible and practical tool for the rapid screening of potential estrogens.

Journal of Molecular Graphics & Modelling published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Related Products of esters-buliding-blocks.

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

Kim, Dong Hee published the artcileSynthesis of a ¹³C-labeled oligomer: solid-state NMR and theoretical studies, Formula: C15H14O3, the publication is Bulletin of the Korean Chemical Society (2001), 22(12), 1289-1290, database is CAplus.

The synthetic pathway, starting from poly(ethylene glycol) monomethyl ether (n = 12) and 4-Br-4′-OH-biphenyl via carboxylation of biphenyl with labeled CO₂ and the ¹H and ¹³C NMR characteristics of the ¹³C-labeled 12-4 oligomer (Me- and ethoxycarbonylbiphenyloxycarbonylbiphenyloxy-terminated dodeca(ethylene glycol) with labeled terminating carbonyl group) are reported. Ab initio NMR calculations were performed and exptl. and theor. spectra are discussed with respect to conformational and dynamic aspects.

Bulletin of the Korean Chemical Society published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Formula: C15H14O3.

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

Nakazono, Manabu published the artcileStrongly Chemiluminescent Acridinium Esters under Neutral Conditions: Synthesis, Properties, Determination, and Theoretical Study, COA of Formula: C15H14O3, the publication is Journal of Organic Chemistry (2017), 82(5), 2450-2461, database is CAplus and MEDLINE.

Various novel acridinium ester derivatives having Ph and biphenyl moieties were synthesized and their optimal chemiluminescence conditions were investigated. Several strongly chemiluminescent acridinium esters under neutral conditions were found and then these derivatives were used to detect hydrogen peroxide and glucose. Acridinium esters having strong electron-withdrawing groups such as cyano, methoxycarbonyl and nitro groups at the 4-position of the Ph moiety in Ph 10-methyl-10λ⁴-acridine-9-carboxylate, trifluoromethane-sulfonate salt showed strong chemiluminescence intensities. The chemiluminescence intensity of 3,4-dicyanophenyl 10-methyl-10λ⁴-acridine-9-carboxylate, trifluoromethanesulfonate salt was approx. 100 times stronger than that of Ph 10-methyl-10λ⁴-acridine-9-carboxylate, trifluoromethanesulfonate salt at pH 7. The linear calibration ranges of hydrogen peroxide and glucose were 0.05-10 mM and 10-2000 μM using 3,4-(dimethoxycarbonyl)phenyl 10-methyl-10λ⁴-acridine-9-carboxylate, trifluoromethane-sulfonate salt at pH 7 and pH 7.5, resp. The proposed chemiluminescence reaction mechanism of acridinium ester via a dioxetanone structure was evaluated via quantum chem. calculation on d. functional theory. The proposed mechanism was composed of the nucleophilic addition reaction of hydroperoxide anion, the dioxetanone ring formation and nonadiabatic transition due to spin-orbit coupling around the transition state (TS) to the triplet state (T1) following the decomposition-pathway. The TS which appeared in the thermal decomposition would be a rate-determining step for all three processes.

Journal of Organic Chemistry published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, COA of Formula: C15H14O3.

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

Busson, P. published the artcilePreparation of Mesogen-Functionalized Dendrimers for Second-Order Nonlinear Optics, Application In Synthesis of 50670-76-3, the publication is Macromolecules (2002), 35(5), 1663-1671, database is CAplus.

Liquid crystalline dendrimers with peripheral mesogen-containing units have been prepared Multistep synthesis with several selective reactions was used in the preparation of the mesogen-containing mols., 4”-[10-(hydroxycarbonyl)decyloxy]phenyl 4-[4′-(2-(R)-octyloxy)-3′-nitrophenyl]benzoate and 4”-[10-(hydroxycarbonyl)decyloxy]biphenyl 4-[4′-(2-(R)-octyloxy)-3′-nitrophenyl]benzoate. Both mols. possessed an electron-accepting nitro group placed perpendicular to the long axis of the mols. in order to enhance the nonlinear optical activity. A second generation hydroxyl functional aliphatic dendrimer based on the dihydroxy acid, 2,2-bis(hydroxymethyl)propionic acid, was used as dendritic scaffold and was subsequently functionalized with the aforementioned groups. The purity and structure of the two liquid crystalline dendrimers were determined by ¹H NMR spectroscopy, size exclusion chromatog., and elemental anal. The synthesis of both the mesogen-containing units and the liquid crystalline dendrimers is described in detail. Investigation of the liquid crystalline properties of the materials by differential scanning calorimetry and optical microscopy showed that they exhibited different mesophases, including the chiral smectic C phase. Ferroelec. switching was observed in this tilted phase, and electrooptical properties, including tilt angle and spontaneous polarization measurements, were investigated. Finally, the nonlinear optical properties of one of the materials were preliminary characterized.

Macromolecules published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Application In Synthesis of 50670-76-3.

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

Ohtake, Toshihiro published the artcileLiquid-Crystalline Complexes of Mesogenic Dimers Containing Oxyethylene Moieties with LiCF₃SO₃: Self-Organized Ion Conductive Materials, SDS of cas: 50670-76-3, the publication is Chemistry of Materials (2000), 12(3), 782-789, database is CAplus.

Mesomorphic dimeric compounds consisting of rigid mesogenic cores and flexible oxyethylene chains have been prepared as liquid-crystalline materials capable of complexing with ionic species. The incorporation of LiCF₃SO₃ into these materials results in the induction of smectic A phases and significant mesophase stabilization. The ion-dipole interactions between lithium ions and oxyethylene moieties have stabilized the mesomorphic layer structures. Ionic conductivities have been measured for the complexes forming homeotropically aligned mol. orientation of smectic phases. The highest value of conduction, which is observed for the direction parallel to the layer in the smectic A phase, is 5.5 × 10^-4 S cm^-1. These results suggest that the complexes of LiCF₃SO₃ with mesogenic rod-coil-rod mols. containing oxyethylene chains can function as self-organized ion conductive materials.

Chemistry of Materials published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

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

Lee, Myongsoo published the artcileLiquid-crystalline rod-coil polymers based on poly(ethylene oxide)s and the influence of the complexation of LiCF₃SO₃ on the liquid-crystalline assembly, Formula: C15H14O3, the publication is Journal of Materials Chemistry (1996), 6(7), 1079-1086, database is CAplus.

The synthesis and characterization of rod-coil polymers of Et 4′-(4′-oxy-4-biphenylcarbonyloxy)-4-biphenylcarboxylate with PEO of 3 , 7, 12 and 16 (A16) ethylene oxide units, of 4′-(4′-oxy-4-phenylcarbonyloxy)-4-biphenylcarboxylate with PEO of 16 units, and of Et 4′-oxy-4-biphenylcarboxylate with PEO of 16 ethylene oxide units are described. All the rod-coil polymers except the one with 16 units display a layered smectic mesophase and, in particular, A16 shows a microphase separated morphol. The complexes of A16 with ≤0.3 mol of LiCF₃SO₃ per mol. of ethylene oxide units are also prepared The rod-coil polymer A16 exhibits an enantiotropic smectic A mesophase in addition to an smectic A phase. In contrast with the complexes with 0.01-0.1 mol of LiCF₃SO₃, the complexes with 0.2 and 0.3 mol do not exhibit any smectic mesophases; however, they display a cylindrical micellar mesophase.

Journal of Materials Chemistry published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Formula: C15H14O3.

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