Category: 150-78-7

On April 30, 2020, Du, Tianshu; Quina, Frank H.; Tunega, Daniel; Zhang, Jianyu; Aquino, Adelia J. A. published an article.Recommanded Product: 150-78-7 The title of the article was Theoretical O-CH3 bond dissociation enthalpies of selected aromatic and non-aromatic molecules. And the article contained the following:

Although Me transfer reactions are important in both chem. and biol. systems, there is a need for thermodn. parameters related to Me affinity and O-CH3 bond dissociation enthalpies (BDEs) relevant to a full understanding of the mechanisms of Me transfer reactions. As a prelude to the construction of a database of O-CH3 BDEs, the present work examines the reliability of a series of theor. methods for the prediction of O-CH3 BDEs using a set of 25 compounds that included both aromatic and non-aromatic mols. The BDEs calculated by d. functional theory (DFT) with traditional exchange-correlation functions exhibited much larger errors than those obtained by either the M06-2X or G4 methods. For the non-aromatic compounds, M06-2X/def2-TZVP performed slightly better than G4, but G4 was more accurate for the aromatic mols. As a result, we recommend G4 as the preferred method for the theor. estimation of O-CH3 bond dissociation enthalpies, although M06-2X may be a good alternative for large complex mols. when the use of G4 is impractical. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Recommanded Product: 150-78-7

The Article related to aromatic compound bond cleavage enthalpy, Physical Organic Chemistry: Theoretical Organic Chemical Concepts, Including Quantum and Molecular Mechanical Studies and other aspects.Recommanded Product: 150-78-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Sun, Guangping; Qian, Weirui; Jiao, Jianmin; Han, Tingting; Shi, Yukun; Hu, Xiao-Yu; Wang, Leyong published an article in 2020, the title of the article was A highly efficient artificial light-harvesting system with two-step sequential energy transfer based on supramolecular self-assembly.Name: 1,4-Dimethoxybenzene And the article contains the following content:

A highly efficient artificial light-harvesting system (ALHS) in the aqueous phase with a two-step sequential energy transfer process has been successfully constructed based on the host-guest interaction between a water-soluble pillar[5]arene (WP5) and a bola-type bis(4-phenyl)acrylonitrile derivative (BPT), as well as two different hydrophobic fluorescent dyes (4,7-bis(thien-2-yl)-2,1,3-benzothiadiazole (DBT) and Nile Red (NiR)). The fabricated ALHS shows an ultrahigh antenna effect (47.8 for the first step and 20.1 for the second step) with a high donor/acceptor ratio of 350 : 1. It is noted that the obtained WP5⊃BPT supramol. nanoparticles possess an enhanced aggregation-induced emission (AIE) effect and can function as an ideal donor to realize the first-step of energy transfer from the WP5⊃BPT assembly to DBT. Moreover, inspired by the sequential energy transfer in nature, NiR was carefully selected as the second acceptor to fabricate an efficient two-step sequential light-harvesting system based on the WP5⊃BPT-DBT-NiR assembly, which exhibits a high FRET efficiency of 60.9% and 89.4% for the two-step sequential energy transfer process, resp. Notably, the emission color changed from light blue to bright green and then to bright red during this process, and thus by tuning the molar ratio of DBT and NiR, a bright white light emission can be achieved with a high fluorescence quantum yield of 23.5%, which showed a strong ability for white fluorescence emission and promising applications in visible-light photocatalysis. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Name: 1,4-Dimethoxybenzene

The Article related to photoinduced energy transfer supramol self assembly pillararene nanoparticle, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Name: 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On December 31, 2020, Qiang, Hui; Chen, Tao; Wang, Zhuo; Li, Wenqian; Guo, Yunzhe; Yang, Jie; Jia, Xueshun; Yang, Hui; Hu, Weibo; Wen, Ke published an article.Recommanded Product: 1,4-Dimethoxybenzene The title of the article was Pillar[5]arene based conjugated macrocycle polymers with unique photocatalytic selectivity. And the article contained the following:

The development of heterogeneous catalysts with substrate shape, size or electronic constitution selectivity is a huge challenge in photocatalysis. Reported herein is a host-guest interaction strategy to endow photocatalysts with special selectivity. By adjusting the precursors, conjugated macrocycle polymers (CMPs) with pillar[5]arene struts (CMP-1 and CMP-2) and a corresponding non-pillar[5]arene-contained conjugated organic polymer (COP-1) were prepared and the photocatalytic activities toward sulfide derivatives were investigated. The sulfides showed similar conversions when COP-1 was used as a photocatalyst, but exhibited significant differences when it turned to the CMPs. Remarkably, the conversion yield of S-1 achieved near 18 folds over the one of S-2 when CMP-2 was used as a catalyst. Mechanism studies confirmed that the “host-guest” effect of pillar[5]arene struts in CMPs was the main cause of the difference. The present work establishes CMPs as novel heterogeneous photocatalysts with substrate selectivity, and such a method will inspire the researchers concerning preparation of heterogeneous catalysts with excellent selectivity. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Recommanded Product: 1,4-Dimethoxybenzene

The Article related to photooxidation catalyst sulfide pillararene, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Recommanded Product: 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On July 20, 2022, Kwon, Tae-woo; Song, Bo; Nam, Kwan Woo; Stoddart, J. Fraser published an article.Reference of 1,4-Dimethoxybenzene The title of the article was Mechanochemical Enhancement of the Structural Stability of Pseudorotaxane Intermediates in the Synthesis of Rotaxanes. And the article contained the following:

Mechanochem. syntheses of rotaxanes have attracted considerable attention of late because of the superior reaction rates and higher yields associated with their production compared with analogous reactions carried out in solution Previous investigators, however, have focused on the demonstration of the mechanochem. syntheses of rotaxanes per se, rather than on studying the solid-phase host-guest mol. interplay related to their rapid formation and high yields. In this investigation, the lower yields of rotaxanes prepared in solution were attributed to the limited concentration and a desolvation energy penalty that must be compensated for by host-guest interactions during complexation that precedes the templation leading to rotaxane formation. It follows that, if the desolvation energy can be removed and higher concentrations can be attained, even weak host-guest interactions can drive the complexation of host and guest mols. efficiently. In order to test this hypothesis, two host-guest pairs of permethylated pillar[5]arene/ 1,6-diaminohexane and permethylated pillar[5]arene/ 2,2′-(ethylenedioxy)bis(ethylamine) have been chosen for the simple reason that they exhibit extremely low binding constants (2.7 ± 0.4 M-1 when 1,6-diaminohexane is the guest and <0.1 M-1 when 2,2'-(ethylenedioxy)bis(ethylamine) is the guest in CDCl3; i.e., ostensibly no pseudorotaxane formation is observed). It can be argued that the amount of pseudorotaxanes formed in the solid state is responsive to mech. treatments or otherwise and changes in temperature during stoppering reactions. Compared to the amount of pseudorotaxanes that can be obtained in solution, large quantities of pseudorotaxanes are formed in the solid state because of concentration and desolvation effects. This mechanochem. enhancement of pseudorotaxane formation is referred to as a self-correction in the current investigation. Rotaxanes based on permethylated pillar[5]arene/ 1,6-diaminohexane and permethylated pillar[5]arene/ 2,2'-(ethylenedioxy)bis(ethylamine) have been synthesized in much higher yields compared to those obtained in solution, aided and abetted by self-correction effects during mech. treatments and heating at a mild temperature of 50°C. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Reference of 1,4-Dimethoxybenzene

The Article related to pseudorotaxane preparation structural stability mechanochem enhancement, rotaxane preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Higher-Membered Ring Systems, Including Cyclophanes and Fullerenes and other aspects.Reference of 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On September 30, 2022, Khanthong, Adisorn; Khamphaijun, Korawit; Ruengsuk, Araya; Docker, Andrew; Limpanuparb, Taweetham; Tantirungrotechai, Jonggol; Bunchuay, Thanthapatra published an article.Quality Control of 1,4-Dimethoxybenzene The title of the article was Pillar[4]arene[1]thioarenes: Synthesis and Host-Guest Binding Properties. And the article contained the following:

The synthesis and characterization of a novel class of pillar[4]arene[1]thioarenes I [R = Me, Et] was reported. An oxidation-thionation strategy was used to replace a single dialkoxybenzene panel in the parent pillar[5]arene. Spectroscopic(1H NMR) titration experiments, supported by d. functional theory computational studies, revealed that compound I [R = Me] showed starkly modulated host-guest binding properties for electron-deficient aliphatic guests. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Quality Control of 1,4-Dimethoxybenzene

The Article related to pillararenethioarene preparation binding property dft, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Higher-Membered Ring Systems, Including Cyclophanes and Fullerenes and other aspects.Quality Control of 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Pan, Wenjing; Li, Chenchen; Zhu, Haoyin; Li, Fangfang; Li, Tao; Zhao, Wanxiang published an article in 2021, the title of the article was A mild and practical method for deprotection of aryl methyl/benzyl/allyl ethers with HPPh2 and tBuOK.Recommanded Product: 1,4-Dimethoxybenzene And the article contains the following content:

A general method for the demethylation, debenzylation, and deallylation of aryl ethers ROMe (R = C6H5, 3-FC6H4, 2-naphthyl, etc.), R1OCH2Ph (R1 = C6H5, 5,6,7,8-tetrahydronaphthalen-2-yl, 2-naphthyl, etc.) and R2OCH2CH=CH2 (R2 = C6H5, 2,3-dimethylphenyl, 1-naphthyl, etc.) using HPPh2 and tBuOK is reported. The reaction features mild and metal-free reaction conditions, broad substrate scope, good functional group compatibility, and high chem. selectivity towards aryl ethers over aliphatic structures. Notably, this approach is competent to selectively deprotect the allyl or benzyl group, making it a general and practical method in organic synthesis. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Recommanded Product: 1,4-Dimethoxybenzene

The Article related to phenol preparation, aryl methyl ether demethylation, benzyl ether preparation debenzylation, allyl ether preparation deallylation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Phenols, Thiophenols, and Derivatives Including Phenol and Thiophenol Ethers and Esters and other aspects.Recommanded Product: 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On October 15, 2020, Yang, Qing-Yu; Zhang, You-Ming; Ma, Xiao-Qiang; Dong, Hong-Qiang; Zhang, Yun-Fei; Guan, Wen-Li; Yao, Hong; Wei, Tai-Bao; Lin, Qi published an article.HPLC of Formula: 150-78-7 The title of the article was A pillar[5]arene-based fluorescent sensor for sensitive detection of L-Met through a dual-site collaborative mechanism. And the article contained the following:

L-Methionine (L-Met) is one of the essential amino acids in human health, efficiently detect L-Met is a significant issue. Herein, a concept “dual-site collaborative recognition” had been successfully introduced into the design and achieved high selective and sensitive recognition of L-Met. In order to realize the “dual-site collaborative recognition”, the authors rationally designed and synthesized an ester functionalized pillar[5]arene-based fluorescent sensor (SP5). And it shows blue Aggregation-induced emission (AIE) fluorescence. In the SP5, the pillar[5]arene group act as C-H···π interactions site, and ester group serve as multi hydrogen bonding acceptor. The SP5 exhibited high selectivity and sensitivity (2.84 × 10-8 M) towards L-Met based on the collaboration of electron-rich cavernous pillar[5]arene group and ester group through C-H···π and H-bond interactions, resp. This “dual-site collaborative recognition” mechanism has been studied by 1H NMR, ESI-MS and theor. calculation including frontier orbital (HOMO and LUMO), electrostatic potential (ESP) and the noncovalent interaction (NCI). These theor. calculations not only support the proposed host-guest recognition mechanism, but also provided visualized information on the “dual-site collaborative recognition” mode. Furthermore, the concept “dual-site collaborative recognition” is an effective strategy for easily detecting biol. mols. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).HPLC of Formula: 150-78-7

The Article related to pillararene based fluorescent probe met dual site collaborative mechanism, aiegen, dft calculation, dual-site collaborative recognition, fluorescent sensor, pillar[n]arenes and other aspects.HPLC of Formula: 150-78-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On November 30, 2020, Pang, Yadong; Lee, Joo Won; Kubota, Koji; Ito, Hajime published an article.Product Details of 150-78-7 The title of the article was Solid-State Radical C-H Trifluoromethylation Reactions Using Ball Milling and Piezoelectric Materials. And the article contained the following:

The application of piezoelectricity for the generation of trifluoromethyl (CF3) radicals is reported together with the development of a method for the mechanochem. C-H trifluoromethylation of aromatic compounds As compared to conventional solution-based approaches, this mechanoredox C-H trifluoromethylation enables cleaner and more sustainable access to a wide range of trifluoromethylated N-heterocycles and peptides, which are important structural motifs in modern drug discovery. This study thus represents an important milestone for future applications of mechanoredox systems to medicinal and pharmaceutical science. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Product Details of 150-78-7

The Article related to aromatic trifluoromethylation solid radical ball milling piezoelectricity, c鈭抙 trifluoromethylation, mechanochemistry, radical reactions, solid-state reactions, synthetic methods and other aspects.Product Details of 150-78-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On September 20, 2021, Mao, Xiaowei; Cheng, Ming; Chen, Linfeng; Cheng, Jing; Li, Haibing published an article.Electric Literature of 150-78-7 The title of the article was Host-Guest Chemistry Triggered Differential HeLa Cell Behavior Based on Pillar[5]arene-Modified Graphene Oxide Surfaces. And the article contained the following:

The regulation of surface wettability and cell adhesion behavior in a mild and unperturbed state at the interface remains a challenging task. To address this task, we adopt a strategy, based on bridging the host-guest recognition capacities of pillar[5]arene and good attachment for cell adhesion abilities of graphene oxide, to construct a smart pillar[5]arene triazole-linked naphthalene-modified graphene oxide interface. The hybrid surface exhibited a good stimuli-responsive selectivity toward arginine, as demonstrated by the wettability and cell adhesion behavior. Further studies at mol. levels indicated that the recognition mechanism of arginine was probably due to the formation of a host-guest complex driven by 蟺-蟺 stacking interactions between the cavity of pillar[5]arenes and arginine, which eventually resulted in the change in surface wettability and cellular adhesion behavior. It not only signifies a host-guest interaction strategy for the design of smart devices via the host-guest effect but also inspires the design of high-performance biointerface for affinity-adherent cells without exposing cells to harsh phys. and chem. conditions. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Electric Literature of 150-78-7

The Article related to naphthylmethyl triazolylmethyl pillararene go preparation hela cell adhesion separation, arginine, cell adhesion behavior, graphene oxide, host鈭抔uest chemistry, pillar[5]arenes and other aspects.Electric Literature of 150-78-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Wang, Dinghui; Wang, Jun; Wang, Yan; Yang, Yingwei published an article in 2022, the title of the article was A Fluorescent Linear Conjugated Polymer Constructed from Pillararene and Anthracene.Reference of 1,4-Dimethoxybenzene And the article contains the following content:

Over the past few years, conjugated polymers (CPs) have aroused much attention owing to their rigid conjugated structures, which can perform well in light harvesting and energy transfer and offer great potential in materials chem. In this article, we fabricate a new luminescent linear CP p(P[5](OTf)2-co-9,10-dea) via the Sonogashira coupling of 9,10-diethynylanthracene and trifluoromethanesulfonic anhydride (OTf) modified pillar[5]arene, generating enhanced yellow-green fluorescence emission at around 552 nm. The reaction condition was screened to get a deeper understanding of this polymerization approach, resulting in an excellent yield as high as 92% ultimately. Besides the optical properties, self-assembly behaviors of the CP in low/high concentrations were studied, where interesting adjustable morphologies from tube to sheet were observed In addition, the fluorescence performance and structural architecture can be disturbed by the host-guest reorganization between the host CP and the guest adiponitrile, suggesting great potential of this CP material in the field of sensing and detection. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Reference of 1,4-Dimethoxybenzene

The Article related to pillararene anthracene conjugated polymer morphol optical property, conjugated polymer, host鈥揼uest interaction, light-emitting materials, pillararene, supramolecular chemistry and other aspects.Reference of 1,4-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem