Day: February 23, 2023

Influence of ethylenediamine tetraacetic acid on the hydrodesulfurization activity of nano HZSM-5 supported NiMo catalyst was written by Jin, Feng-Ying;Guo, Xin-Wen;Wang, Xiang-Sheng. And the article was included in Gaodeng Xuexiao Huaxue Xuebao in 2011.Product Details of 1795-01-3 This article mentions the following:

A new type of EDTA-NiMo/nano-HZSM-5 (EDTA = ethylene-diaminetetraacetic acid) catalyst for FCC gasoline hydrodesulfurization was prepared and characterized by XRD, ICP, FTIR, ²⁷Al MAS NMR, TG-DTA, Py-IR, and NH₃-TPD. The catalyst showed higher and more stable hydrodesulfurization (HDS) activity for FCC gasoline than the NiMo/nano-HZM-5 catalyst. The results indicated that there was a strong interaction between EDTA and nano-HZSM-5, which weakened the interaction between the active metal components and support, improved dispersion of active metal components on the support surface. Besides, it was the interaction between EDTA and Ni that promoted the reduction and sulfidation of catalyst. In the experiment, the researchers used many compounds, for example, 3-Ethylthiophene (cas: 1795-01-3Product Details of 1795-01-3).

3-Ethylthiophene (cas: 1795-01-3) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, sertaconazole, and also BTCP.Product Details of 1795-01-3

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Zinc-Mediated Reductive Cyclization of [60]Fullerene with Enones and Subsequent Dehydration under Solvent-Free and Ball-Milling Conditions was written by Liu, Hong-Wei;Xu, Hui;Shao, Gang;Wang, Guan-Wu. And the article was included in Organic Letters in 2019.Computed Properties of C13H10OS This article mentions the following:

The zinc-mediated solvent-free reaction of [60]fullerene with enones and water and the subsequent treatment of a base afford various [60]fullerene-fused cyclopentanols using the ball-milling technique. A plausible reaction mechanism is proposed on the basis of control experiments In addition, the formed [60]fullerene-fused cyclopentanols can be further dehydrated to provide [60]fullerene-fused cyclopentenes. In the experiment, the researchers used many compounds, for example, 3-Phenyl-1-(thiophen-2-yl)prop-2-en-1-one (cas: 3988-77-0Computed Properties of C13H10OS).

3-Phenyl-1-(thiophen-2-yl)prop-2-en-1-one (cas: 3988-77-0) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. It is also used in the manufacturing of dyes such as thioindigo.Computed Properties of C13H10OS

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Nickel-Catalyzed Asymmetric Hydrogenation of Cyclic Alkenyl Sulfones, Benzo[b]thiophene 1,1-Dioxides, with Mechanistic Studies was written by Liu, Gongyi;Tian, Kui;Li, Chenzong;You, Cai;Tan, Xuefeng;Zhang, Heng;Zhang, Xumu;Dong, Xiu-Qin. And the article was included in Organic Letters in 2021.Electric Literature of C8H7BO2S This article mentions the following:

A highly efficient catalytic system based on the cheap transition metal nickel for the asym. hydrogenation of challenging cyclic alkenyl sulfones, 3-substituted benzo[b]thiophene 1,1-dioxides, was first successfully developed. A series of hydrogenation products, chiral 2,3-dihydrobenzo[b]thiophene 1,1-dioxides I [R = H, OMe; R¹ = Et, Ph, 2-MeC₆H₄, etc.] was obtained in high yields (95-99%) with excellent enantioselectivities (90-99% ee). According to the results of nonlinear effect studies, deuterium-labeling experiments, and DFT calculation investigations, a reasonable catalytic mechanism for this nickel-catalyzed asym. hydrogenation was provided, which displayed that the two added hydrogen atoms of the hydrogenation products could be from H₂ through the insertion of Ni-H and subsequent hydrogenolysis. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6Electric Literature of C8H7BO2S).

Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. Due to its aromaticity, thiophenes do not exhibit the same properties as conventional thioethers.Electric Literature of C8H7BO2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Direct Carboxylation of Electron-Rich Heteroarenes Promoted by LiO-tBu with CsF and [18]Crown-6 was written by Shigeno, Masanori;Hanasaka, Kazuya;Sasaki, Keita;Nozawa-Kumada, Kanako;Kondo, Yoshinori. And the article was included in Chemistry – A European Journal in 2019.Computed Properties of C11H10O3S This article mentions the following:

The combination of LiO-tBu, CsF, and [18]crown-6 efficiently promoting the direct C-H carboxylation of electron-rich heteroarenes (benzothiophene, thiophene, benzofuran, and furan derivatives) I (R = Me, CN, Br, MeO, Cl, F; R¹ = H, CH₃, Br) and II (R² = Br, C₆H₅, C(O)C₆H₅, etc.; R³ = H; R²R³ = CH=CH-CH=CH; X = O, S) has been demonstrated. A variety of functional groups, including Me, methoxy, halo, cyano, amide, and keto moieties, is compatible with this system. The reaction proceeds via the formation of a tert-Bu carbonate species. In the experiment, the researchers used many compounds, for example, Methyl 5-methoxybenzo[b]thiophene-2-carboxylate (cas: 19492-99-0Computed Properties of C11H10O3S).

Methyl 5-methoxybenzo[b]thiophene-2-carboxylate (cas: 19492-99-0) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.Computed Properties of C11H10O3S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Determination of five fluorescent whitening agents in foam plastic tableware by high performance liquid chromatography tandem mass spectrometry was written by Du, Zhi-feng;Xian, Yan-ping;Liu, Fu-jian;Huang, Jin-feng;Wu, Yu-luan;Guo, Xin-dong;Wang, Yong-hua;Luo, Dong-hui. And the article was included in Xiandai Shipin Keji in 2013.Safety of 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene This article mentions the following:

A simple and sensitive method has been developed for the simultaneous determination of five fluorescent whitening agents (FWA135, FWA184, FWA367, FWA368 and FWA393) in foam plastic tableware using high performance liquid chromatog. tandem mass spectrometry (HPLC-MS/MS). The samples were extracted with trichloromethane, and the polymer in the extracts were precipitated by adding methanol. The separation of five FWAs was carried out on a Phenomenex kinetex C₁₈ column (2.1 mm × 100 mm, 2.6 μm) by gradient elution with 0.1% formic acid methanol and 0.1% formic acid as mobile phase. Electrospray ionization mass was operated in the pos. mode (ESI⁺) using multiple reaction monitoring (MRM) for the qual. and quant. anal. of five FWAby retention time and ion ratio. The result indicated that the linear correlation coefficients (r > 0.995) of five FWAs were obtained with the linear relationship between 0.5 to 50 μg/L. The limits of detection (ILOD, S/N = 3) were ranged from 0.1 μg/L to 0.5 μg/L, and the limits of qualification of the method (MLOQ, S/N = 10) were varied from 0.4 μg/kg to 2.0 μg/kg. The recoveries of five FWAs from spiked samples at the spiking levels of 2 μg/kg, 8 μg/kg and 200 μg/kg were between 86.4% and 98.4% with RSD (n = 6) less than 3.9% to 8.1%. The method was simple and precise for the determination of five FWAs in foam plastic tableware. In the experiment, the researchers used many compounds, for example, 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5Safety of 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene).

2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5) belongs to benzothiophene derivatives. Benzothiophene is used as starting material for the synthesis of bioactive molecules. The core structure is a part of various pharmaceutical substances and natural products. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Safety of 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Digital Light Processing of Highly Filled Polymer Composites with Interface-Mediated Mechanical Properties was written by Wang, Ye;Delarue, Antoine P.;McAninch, Ian M.;Hansen, Christopher J.;Robinette, E. Jason;Peterson, Amy M.. And the article was included in ACS Applied Polymer Materials in 2022.Recommanded Product: 7128-64-5 This article mentions the following:

Digital light processing (DLP) is a popular method of additive manufacturing of thermosetting polymer composites with high resolution While DLP of composite systems has been demonstrated, only a few studies comment on the role of interfacial interactions on resulting mech. properties. In this work, high volume fraction (50 volume %) glass microsphere-reinforced composites were fabricated via DLP. The effects of surface chem. and interfacial interactions on the mech. and thermal properties of additively manufactured composites were investigated. Interfacial interactions between the urethane acrylate-based resin system and glass microspheres were found to dictate the overall performance of the composites. Greater resin-glass wettability led to simultaneous and anomalous increases in stiffness, toughness, and strength. Interestingly, composites where glass was functionalized to covalently bond with the resin phase only showed moderate improvements in mech. properties as compared to systems with high resin-glass wettability. Finally, complex structures with fine details were printed to demonstrate printability. In the experiment, the researchers used many compounds, for example, 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5Recommanded Product: 7128-64-5).

2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.Recommanded Product: 7128-64-5

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Labeling of unnatural amino acids with technetium-99m and tissue distribution of the labeled products in mice was written by Tamemasa, Osamu;Goto, Rensuke;Takeda, Atsushi. And the article was included in Radioisotopes in 1981.HPLC of Formula: 32595-59-8 This article mentions the following:

^99mTc-labeled unnatural amino acids were prepared by conventional methods and their distribution in mice organs after i.v. injection was determined Most of the labeled amino acids were found in the kidney, whereas only small amounts in the pancreas. ^99mTc-labeled 4-azaleucine and -azaserine showed the highest distribution in the liver (19.3 and 17.1% dose/g wet weight, resp.). A low distribution in the stomach was shown only by a few of the labeled amino acids. In the experiment, the researchers used many compounds, for example, 2-Amino-3-hydroxy-3-(thiophen-2-yl)propanoic acid (cas: 32595-59-8HPLC of Formula: 32595-59-8).

2-Amino-3-hydroxy-3-(thiophen-2-yl)propanoic acid (cas: 32595-59-8) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. It is also used in the manufacturing of dyes such as thioindigo.HPLC of Formula: 32595-59-8

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Ternary Electrolyte Additive Mixtures for Li-Ion Cells that Promote Long Lifetime and Less Reactivity with Charged Electrodes at Elevated Temperatures was written by Ma, Lin;Xia, Jian;Dahn, J. R.. And the article was included in Journal of the Electrochemical Society in 2015.Formula: C2H4O4S This article mentions the following:

Li[Ni_1/3Mn_1/3Co_1/3]O₂ (NMC111)/graphite and Li[Ni_0.42Mn_0.42Co_0.16]O₂ (NMC442)/graphite pouch cells demonstrate superb performance when ternary blends of electrolyte additives are added to the cells. These ternary blends contain one of vinylene carbonate (VC) or prop-1-ene-1,3-sultone (PES) plus a S containing mol. and tris(trimethylsilyl) phosphite (TTSPi). Here, the excellent charge-discharge capacity retention of cells containing these ternary blends of additives is demonstrated at both 45° and 55°C by comparison to cells with only VC or PES additives alone. The impact of a number of S- and phosphorous-containing electrolyte additives on the reactivity of charged electrode materials with electrolyte at elevated temperatures was studied using accelerating rate calorimetry (ARC). The electrolyte additives, methylene methanedisulfonate (MMDS) and TTSPi, dramatically reduce the reactivity between lithiated (charged) graphite and electrolyte. The ternary electrolyte blends of VC + MMDS + TTSPi and PES + MMDS + TTSPi show no reactivity between charged graphite and electrolyte to >200°. By contrast, electrolytes with no additives or with PES alone show significant reactivity with lithiated graphite <200°. NMC/graphite cells with VC + MMDS + TTSPi or PES + MMDS + TTPSi additives will demonstrate long life and excellent safety. In the experiment, the researchers used many compounds, for example, 1,3,2-Dioxathiolane 2,2-dioxide (cas: 1072-53-3Formula: C2H4O4S).

1,3,2-Dioxathiolane 2,2-dioxide (cas: 1072-53-3) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.Formula: C2H4O4S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Complementarity between fluorescence and reflection in photoluminescent cholesteric liquid crystal devices was written by Kim, Jang-Kyum;Joo, Suk-Hwan;Song, Jang-Kun. And the article was included in Optics Express in 2013.SDS of cas: 7128-64-5 This article mentions the following:

The combination of photoluminescence (PL) and cholesteric liquid crystal (CLC) provides interesting complementary features for an optimized display application. Distortion of the Bragg lattice of CLCs decreases selective reflection but increases fluorescence intensity; recovery of a uniform lattice in turn results in increased reflection and decreased fluorescence. This complementary relationship between the fluorescence and the Bragg reflection gives rise to self-compensations for color shifts due to either dynamic slow response of CLC helix or mismatch of oblique incidence of light with respect to the helical axis. These color shifts have long been intrinsic unsolved limitations of conventional CLC devices. Thus, the complementary coupling between the fluorescence and the CLC Bragg reflections plays an important role in improving the color performance and the quality of moving images. In the experiment, the researchers used many compounds, for example, 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5SDS of cas: 7128-64-5).

2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.SDS of cas: 7128-64-5

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Oxidative diversification of amino acids and peptides by small-molecule iron catalysis was written by Osberger, Thomas J.;Rogness, Donald C.;Kohrt, Jeffrey T.;Stepan, Antonia F.;White, M. Christina. And the article was included in Nature (London, United Kingdom) in 2016.Computed Properties of C9H8S This article mentions the following:

Secondary metabolites synthesized by non-ribosomal peptide synthetases display diverse and complex topologies and possess a range of biol. activities. Much of this diversity derives from a synthetic strategy that entails pre- and post-assembly oxidation of both the chiral amino acid building blocks and the assembled peptide scaffolds. The vancomycin biosynthetic pathway is an excellent example of the range of oxidative transformations that can be performed by the iron-containing enzymes involved in its biosynthesis. However, because of the challenges associated with using such oxidative enzymes to carry out chem. transformations in vitro, chem. syntheses guided by these principles have not been fully realized in the laboratory Here we report that two small-mol. iron catalysts are capable of facilitating the targeted C-H oxidative modification of amino acids and peptides with preservation of α-center chirality. Oxidation of proline to 5-hydroxyproline furnishes a versatile intermediate that can be transformed to rigid arylated derivatives or flexible linear carboxylic acids, alcs., olefins and amines in both monomer and peptide settings. The value of this C-H oxidation strategy is demonstrated in its capacity for generating diversity: four ‘chiral pool’ amino acids are transformed to twenty-one chiral unnatural amino acids representing seven distinct functional group arrays; late-stage C-H functionalizations of a single proline-containing tripeptide furnish eight tripeptides, each having different unnatural amino acids. Addnl., a macrocyclic peptide containing a proline turn element is transformed via late-stage C-H oxidation to one containing a linear unnatural amino acid. In the experiment, the researchers used many compounds, for example, 2-Methylbenzo[b]thiophene (cas: 1195-14-8Computed Properties of C9H8S).

2-Methylbenzo[b]thiophene (cas: 1195-14-8) belongs to benzothiophene derivatives. Benzothiophene scaffolds are of great importance due to its increased presence in bioactive molecules. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.Computed Properties of C9H8S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem