Category: 50670-76-3

Zurowska, Magdalena published the artcileEffect of lateral fluorine substitution far from the chiral center on mesomorphic behaviour of highly titled antiferroelectric (S) and (R) enantiomers, Category: esters-buliding-blocks, the publication is Journal of Molecular Liquids (2018), 504-510, database is CAplus.

Several new liquid crystalline chiral ester enantiomers in the (S) and (R) configuration were designed and characterised. In order to tune their mesomorphic properties, the mol. core was laterally substituted by fluorine atoms in different positions on the benzene ring placed in the mol. core far from the chiral center. All the materials possess the self-assembling behavior, specifically the paraelec. orthogonal smectic A*, the ferroelec. tilted smectic C* and antiferroelec. tilted smectic C_A* phases over a broad temperature range down to room temperature Properties of the materials were characterised by the polarising optical microscopy, differential scanning calorimetry, electro-optics and dielec. spectroscopy. Due to high chem. stability, reasonably broad temperature ranges of polar smectic mesophases (up to 110 °C) and very high values of the optical tilt angle (40-45°) at saturation, these materials can be used as chiral dopants for the multicomponent orthoconic mixture design aimed for development of advanced electro-optic and photonic devices.

Journal of Molecular Liquids 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 C8H6ClNO, Category: esters-buliding-blocks.

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

Nantogmah, S. published the artcileSynthesis and preliminary evaluation of affinity to retinoic acid receptors for new organosilicon-based retinoids, Application In Synthesis of 50670-76-3, the publication is Pharmaceutical Chemistry Journal (2012), 45(10), 612-621, database is CAplus.

Two facile synthetic routes to eleven new Si-containing ligands for retinoic acid receptors (RARs) are reported. The design of these RAR ligands is based on a pharmacophoric model that divides the mols. into three regions that are necessary for efficient binding to the corresponding receptors: a hydrophobic region (A), a linker or tether region (B) and a hydrophilic region (C). The ligands are unique in region A due to their acyclic nature and the presence of alkyl-substituted Si at the core. The substituted silyl groups were used to fulfill pharmacophore requirements. Various alkyl substituents available on the Si starting materials afford an opportunity to explore steric effects on binding. In region B of four ligands, a cinnamate moiety maintains some degree of conjugation and planarity in the mols. A biaryl group used in region B of another series of compounds is known to lead to RARb selectivity. Finally, region C of the ligands contains a carboxylate group, a well known pharmacophore requirement for RAR ligands. The compounds prepared in this work have micromolar to nanomolar affinity for these medically relevant target receptors. The proposed silane-containing ligands represent siloacetylenic aryl acids that are worth of further study. They may serve as leads for the development of higher-affinity, more receptor-selective agents.

Pharmaceutical Chemistry Journal 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

Drzewinski, Witold published the artcileAntiferroelectric liquid crystals with fluorinated parts of terminal chains. I. Synthesis of liquid crystalline compounds and their intermediates, Category: esters-buliding-blocks, the publication is Biuletyn Wojskowej Akademii Technicznej (1998), 47(7-8), 53-68, database is CAplus.

The method of preparing the optically active hydroxyesters: 1-hydroxy-4-(octyl-2-oxycarbonyl)benzene, 4-hydroxy-4′-(octyl-2-oxycarbonyl)biphenyl, 4-(octyl-2-oxycarbonyl)-Ph 4′-hydroxybiphenyl-4-carboxylate and 4′-(octyl-2-oxycarbonyl)biphenyl-4-yl 4-hydroxybenzoate, has been elaborated. These intermediates were used for the synthesis of liquid crystalline homologous series of di- and triesters exhibiting the presence of tilted phases C_A^* and C^*.

Biuletyn Wojskowej Akademii Technicznej 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, Category: esters-buliding-blocks.

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

Drzewinski, W. published the artcileOrthoconic antiferroelectrics. Synthesis and mesomorphic properties of optically active (S)-(+)-4-(1-methylheptyloxycarbonyl)phenyl 4′-(fluoroalkanoyloxyalkoxy)biphenyl-4-carboxylates and 4′-(alkanoyloxyalkoxy)biphenyl-4-carboxylates, Application of Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Polish Journal of Chemistry (2002), 76(2-3), 273-284, database is CAplus.

Convenient methods for preparing optically active (S)-(+)-4-RCO₂(CH₂)_mOC₆H₄C₆H₄CO₂C₆H₄CO₂CHMe(CH₂)₅Me [R = Me, Et, Pr, F₃CCH₂CH₂, F₃CCF₂CF₂] and their intermediates are described. The phase transitions of the prepared esters have been investigated by differential scanning calorimetry.

Polish Journal of 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, Application of Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Xu, Li-Chen published the artcileIron-Catalyzed Room Temperature Cross-Couplings of Bromophenols with Aryl Grignard Reagents, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Advanced Synthesis & Catalysis (2019), 361(23), 5421-5427, database is CAplus.

Herein, a room temperature Fe-catalyzed coupling reaction of various bromophenols with aryl Grignard reagents, which exhibits a wide substrate scope and high functional group tolerance is reported. For the first time, the combination of simple Fe(acac)₃/PBu₃/Ti(OEt)₄ has been used as an effective catalyst for the biaryl couplings of bromophenols or their Na or K salts with debromination and etherification side reactions being well suppressed. Various biphenols including natural product garcibiphenyl C as well as pharmaceutical diflunisal and its Et ester were facilely synthesized using the present protocol.

Advanced Synthesis & Catalysis 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 C8H15NO, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

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

Lan, Ya-Qian published the artcileTailor-Made Metal-Organic Frameworks from Functionalized Molecular Building Blocks and Length-Adjustable Organic Linkers by Stepwise Synthesis, HPLC of Formula: 50670-76-3, the publication is Chemistry – A European Journal (2012), 18(26), 8076-8083, S8076/1-S8076/44, database is CAplus and MEDLINE.

The authors demonstrated a family of diamondoid metal-organic frameworks (MOFs) based on functionalized mol. building blocks (pentanuclear zinc benzotriazolate clusters) and length-adjustable tetracarboxylate organic linkers by using a stepwise synthesis strategy. The authors have successfully achieved not only design and control to synthesize MOFs, but also the functionalization of both secondary building units (SBUs) and organic linkers in the same MOF for the first time. Also, the results of N₂ and H₂ adsorption show that their surface areas and H₂ uptake capacities are determined by the most optimal combination of functional groups from SBUs and organic linkers, interpenetration, and free volume in this system. A member of this series, DMOF-6 exhibits the highest surface area and H₂ adsorption capacity among this family of MOFs.

Chemistry – A European Journal 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, HPLC of Formula: 50670-76-3.

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

Cheng, Zihui published the artcileInfluence of linkage and terminal group on the liquid crystalline and helical twisting behaviors of cholesteryl esters, Formula: C15H14O3, the publication is Liquid Crystals (2011), 38(7), 803-812, database is CAplus.

Three series of cholesteryl esters with different linkages and terminal groups were synthesized and characterized. All esters except cholesteryl 6-bromohexanoate can exhibit thermotropic liquid crystalline phases in certain temperature regions. The insertion of a 4-phenoxy and a 4-biphenylyloxy group in the ester can increase the mol. length, broaden the whole mesophase width and heighten the clearing temperature The increasing mol. length can enforce the layered arrangement in series A and B (resulting in a monolayer smectic A phase), while destroying the layer stacking in series C (resulting in a suppressed or absent intertwined smectic A phase). Meanwhile, the mol. structure played an important role in the molar helical twisting power and its temperature dependence. The target compounds thus formed included cholesterol esters, (3β)-cholest-5-en-3-ol 3-[6-(2-naphthalenyloxy)hexanoate] and (3β)-cholest-5-en-3-ol 3-[6-[(4′-cyano[1,1′-biphenyl]-4-yl)oxy]hexanoate] and corresponding benzoate and biphenylcarboxylate derivatives

Liquid Crystals 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

Xu, Zu-Sheng published the artcileSynthesis and characterization of novel ferroelectric liquid crystals and copolymers containing biphenyl azobenzene and/or phenyl biphenyl carboxylate mesogenic groups, Formula: C15H14O3, the publication is Liquid Crystals (1999), 26(3), 351-359, database is CAplus.

Two new ferroelec. liquid crystals, 4-[(S)-1-(ethoxycarbonyl)]ethyl 4-[4′-(9-decenyloxy)biphenyl]azobenzoate (10) and its ester analog 4-[(S)-1-(ethoxycarbonyl)]ethyl {[4-(9-decenyloxy)]biphenyl-4′-yl}carbonyloxybenzoate (17), and side chain polysiloxane copolymers and terpolymers containing various amounts of 10 and 17 as mesogenic side groups have been synthesized. Their mesomorphic and phys. properties have been characterized. Both 10 and 17 exhibit isotropic, SmA*, SmC*, and Sm(I or F)* phases. The copolymer with 17 as the mesogenic group and terpolymers having low content of the azo compound 10 show a SmC* phase over a large temperature range down to room temperature The copolymer with the azo compound 10 as the mesogenic group is amorphous.

Liquid Crystals 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 C16H18Br2ClN3O3, Formula: C15H14O3.

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

Xu, Zu-Sheng published the artcileAzobenzene-Assisted Alignment of Ferroelectric Liquid Crystals in the Chiral Smectic C Phase with an Alternating Current Field, Computed Properties of 50670-76-3, the publication is Chemistry of Materials (1998), 10(11), 3269-3271, database is CAplus.

An unexpected phenomenon of aligning ferroelec. liquid crystal (FLC) directly in the SmC* phase is observed relatively rapidly in the presence of an ac field, by doping a small amount of an azobenzene derivative into it. There may be some interaction s between the azo compound and the FLC mols. under the a.c. field. Interactions with the rubbed polyimide surface layer may also play a role. The preliminary results show that the kinetics of this azobenzene-assisted alignment depends on the concentration of azobenzene derivative The possibility of aligning FLC mols. in the SmC* phase relatively rapidly by doping with small amounts of azo compounds and by applying an a.c. field may have some useful applications, and it provides a fairly simple method for aligning FLCs.

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 C7H10O4, Computed Properties of 50670-76-3.

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

Kim, Jae-Hoon published the artcileα,ω-Bis[4-(4′-(S)-(+)-2-methylbutylbiphenyl-4-carboxy)phenoxy]alkanes – synthesis and liquid crystalline properties of new dimesogenic compounds, SDS of cas: 50670-76-3, the publication is Journal of the Korean Chemical Society (1998), 42(6), 679-695, database is CAplus.

α,ω-Bis[4-(4′-(S)-(+)-2-methylbutoxybiphenyl-4-carboxy)phenoxy]alkanes were synthesized, and their thermal and liquid crystalline properties were studied. The chains length of the central polymethylene spacers, x, of the chiral twin compounds was varied from 3 to 12. These compounds were characterized by elemental analyses, IR and NMR spectroscopy, DTA (DSC), and cross-polarized microscopy. All compounds are enantiotropic liquid crystalline, and the values of melting (Tm) and isotropization temperature (T_i) as well as ΔH₄ and ΔS_i decreased in a zigzag fashion, revealing the so-called odd-even effect as x increased. Their mesomorphic properties fell into four categories depending on x. Compounds with x = 3, 4 and 5 formed only a cholesteric phase on heating, while on cooling they went through two transitions of isotropic (I)-to-cholesteric (Ch) and Ch-to-smectic A (S_A) phases before crystallization Compounds with x = 6, 8 and 10 exhibited only a cholesteric phase both on heating and on cooling. Compounds with x = 7 and 9 went through three transitions of crystal (C)-to-S_A, S_A-to-Ch, and Ch-to-I phases on heating while on cooling they went through four transitions of I-to-Ch, Ch-to-S_A, S_A-to-Smectic C (S_C), and S_C-to-C phases in that order. Compounds with x = 11 and 12 went reversibly through four transitions of C-to-S_C, S_C-to-S_A, S_A-to-Ch, and Ch-to-I phases.

Journal 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, SDS of cas: 50670-76-3.

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