Tag: 200-300

《Low-Dimensional Hybrid Indium/Antimony Halide Perovskites: Supramolecular Assembly and Electronic Properties》 was written by Nicholas, Aaron D.; Halli, Ryan N.; Garman, Leah C.; Cahill, Christopher L.. HPLC of Formula: 15854-87-2 And the article was included in Journal of Physical Chemistry C in 2020. The article conveys some information:

The phenomenon of quantum confinement in hybrid low-dimensional lead-free perovskite derivatives continues to hinder the development of these materials for electron carrier devices such as next-generation solar cells. Spatial separation of metal-halide octahedra within crystal structures yields materials with greater moisture and photodegradation resistance, but at the expense of desired photophys. properties such as small band gaps. We report the synthesis and characterization of an unexplored isomorphic series of perovskite derivatives consisting of isolated dimeric metal-halide M2X104- (M = In, Sb; X = Cl, Br) anions charge-balanced with halopyridinium cations. Assembly of these species results in a supramol. network via extensive noncovalent interactions and may be described as a pseudo-zero-dimensional arrangement. Despite the low dimensionality, these materials display semiconductive optical band-gap energies owing to the appearance of an intermediate band due to hybridization of metal-halide at. and MOs. Low-temperature luminescence measurements provide evidence of electron delocalization where photoexcited metal/halide electrons are captured by organic cations via energetically accessible π* MOs, separating electron/hole pairs. Natural bonding orbital (NBO) calculations reveal that metal hybridization is more pronounced in compounds containing Sb3+ and can be influenced by noncovalent interactions between anionic and cationic building units.4-Iodopyridine(cas: 15854-87-2HPLC of Formula: 15854-87-2) was used in this study.

4-Iodopyridine(cas: 15854-87-2) is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists. 4-Iodopyridine is a halogenated heterocycle that is a building block for proteomics research.HPLC of Formula: 15854-87-2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Discovery of novel liver X receptor inverse agonists as lipogenesis inhibitors》 was written by Chen, Ziyang; Chen, Hao; Zhang, Zizhen; Ding, Peng; Yan, Xin; Li, Yanwen; Zhang, Songxuan; Gu, Qiong; Zhou, Huihao; Xu, Jun. Category: iodides-buliding-blocks And the article was included in European Journal of Medicinal Chemistry in 2020. The article conveys some information:

Based on the co-crystal structures of LXRβ and its agonists (spiro [pyrrolidine-3,3′-oxindole] derivatives) discovered by us previously, we designed and synthesized a compound library to explore the agonistic activities. The library was screened with luciferase reporter assays, interestingly, it resulted in the discovery of 10 LXR inverse agonists besides 5 LXR agonists. To clarify the mechanism of the actions, we conducted mol. dynamics (MD) simulations on the LXR and inverse agonists complexes, and revealed that H3, H11 and H12 configurations are the key to turn on agonism or inverse agonism status for LXR. Binding tightly with H3, pushing H11 out and destabilizing H12 could form a bigger hydrophobic groove to accommodate NCOR1 to turn on LXR inverse agonism. The inverse agonist 10rr was further studied, and found as a lipogenesis inhibitor through down-regulating LXR target genes SREBP-1c, ACC, FAS and SCD-1, and demonstrated lipid-lowering effects in 3T3-L1 cells, HepG2 cells and mice with Triton WR-1339-induced hyperlipidemia. Therefore, we have proved that LXR inverse agonists can be promising agents for hyperlipidemia treatment. The experimental part of the paper was very detailed, including the reaction process of 1-Chloro-3-iodobenzene(cas: 625-99-0Category: iodides-buliding-blocks)

1-Chloro-3-iodobenzene(cas: 625-99-0) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine.Category: iodides-buliding-blocks

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Ayer, Maxime; Bolli, Rico S.; Chesman, Anthony S. R.; Forsyth, Craig M.; Jeffery, Justine L.; Liepa, Andris J.; Morawska, Karolina M.; Ozga, Theo; Francis, Craig L. published their research in ARKIVOC (Gainesville, FL, United States) in 2021. The article was titled 《Some new 2,8-disubstituted-1,7-dicyano-3,9-diazaperylenes》.Reference of 3-Iodophenol The article contains the following contents:

Concise synthetic protocols for a range of new 2,8-disubstituted-1,7-dicyano-3,9-diazaperylenes, starting from com. available 1,5-diaminoanthraquinone, have been developed, which enable the introduction of various tertiary-amino, substituted-ethynyl, and aryl groups at the C2 and C8 positions, as well as incorporation of aryl-amino groups at the C4 and C10 positions, of the rare 3,9-diazaperylene system. This methodol. should enable tuning of phys. and optoelectronic properties and may find use in the discovery of new materials for organic photovoltaic devices or other organic electronic applications. The experimental process involved the reaction of 3-Iodophenol(cas: 626-02-8Reference of 3-Iodophenol)

3-Iodophenol(cas: 626-02-8) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Reference of 3-IodophenolIodo alkanes participate in a variety of organic synthesis reactions, which include the Simmons–Smith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

El Nemr, Ahmed; Eleryan, Ahmed; Mashaly, Mohammad; Khaled, Azza published their research in Polymer Bulletin (Heidelberg, Germany) in 2021. The article was titled 《Comparative study of synthesis of cellulose propionate from different sources using NIS as a new catalyst》.Name: 1-Iodopyrrolidine-2,5-dione The article contains the following contents:

Propylation of cellulose from different sources with propionic anhydride using N-iodosuccinimide (NIS) under solvent-free condition was tested. It was done in the presence of NIS as a new catalyst for propylation using three different amounts of catalyst under mild reaction conditions. The degree of substitution by propionate was exptl. calculated and confirmed by FTIR and 1H NMR analyses. The propylation yields varied from 71.54 to 88.37% with the degree of substitution (DS) ranged from 1.32 to 2.80 for com. cotton cellulose, 1.76-3.00 for rice husk cellulose, and 1.60-3.0 for wheat straw cellulose. The DS were easily controlled by changing the reaction duration (2-6 h) and the amount of the NIS catalyst (50, 75, and 100 mg for each 1.0 g of cellulose) in 25 mL of propionic anhydride. Prolonging the reaction’s duration has no favorable effect on the propylation process and led to decrease in the cellulose propionate (CP). Also, increasing the amount of NIS catalyst results in decrease the DS and CP yield. NIS was recognized as a novel and more successful catalyst for propylation of the hydroxyl groups of cellulose from different sources in high degree of substitution. In the experimental materials used by the author, we found 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Name: 1-Iodopyrrolidine-2,5-dione)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Name: 1-Iodopyrrolidine-2,5-dione

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Saha, Debarshi; Maajid Taily, Irshad; Banerjee, Prabal published their research in European Journal of Organic Chemistry in 2021. The article was titled 《Electricity Driven 1,3-Oxohydroxylation of Donor-Acceptor Cyclopropanes: a Mild and Straightforward Access to β-Hydroxy Ketones》.Reference of Trimethylsulfoxonium iodide The article contains the following contents:

An unprecedented external oxidant-free electrochem. protocol for 1, 3-oxohydroxylation of donor-acceptor cyclopropanes is disclosed. The strategy encompasses the activation of the labile π-electron cloud of the aryl ring to cleave the strained Csp3-Csp3 bond of cyclopropane to afford the β-hydroxy ketones via insertion of mol. oxygen. More significantly, based on the detailed mechanistic investigations and cyclic voltammetry experiments, a plausible mechanism is proposed. The experimental part of the paper was very detailed, including the reaction process of Trimethylsulfoxonium iodide(cas: 1774-47-6Reference of Trimethylsulfoxonium iodide)

Trimethylsulfoxonium iodide(cas: 1774-47-6) reacts with sodium hydride to prepare dimethyloxosulfonium methylide, which is used as a methylene-transfer reagent in synthetic chemistry. It is used to prepare ylide, which reacts with carbonyl compounds to get epoxides.Reference of Trimethylsulfoxonium iodide

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《meta-Selective C-H Arylation of Fluoroarenes and Simple Arenes》 was written by Liu, Luo-Yan; Qiao, Jennifer X.; Yeung, Kap-Sun; Ewing, William R.; Yu, Jin-Quan. Name: 1-Chloro-3-iodobenzene And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

Fluorine is known to promote ortho-C-H metalation. Based upon this reactivity, we employed an activated norbornene that traps the ortho-palladation intermediate and is then relayed to the meta position, leading to meta-selective C-H arylation of fluoroarenes. Deuterium experiment suggests that this meta-arylation is initiated by ortho C-H activation and the catalytic cycle is terminated by C-2 protonation. A dual-ligand system is crucial for the observed high reactivity and site selectivity. Applying this approach to simple benzene or other arenes also affords arylation products with good yield and site selectivity. In the experiment, the researchers used many compounds, for example, 1-Chloro-3-iodobenzene(cas: 625-99-0Name: 1-Chloro-3-iodobenzene)

1-Chloro-3-iodobenzene(cas: 625-99-0) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Name: 1-Chloro-3-iodobenzene Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Self-assembly of coordination polyhedra with highly entangled faces induced by metal-acetylene interactions》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Domoto, Yuya; Abe, Masahiro; Kikuchi, Takashi; Fujita, Makoto. HPLC of Formula: 591-18-4 The article mentions the following:

The self-assembly of nanostructures is dominated by a limited number of strong coordination elements. Herein, we show that metal-acetylene π-coordination of a tripodal ligand (L) with acetylene spacers gave an M3L2 double-propeller motif (M=CuI or AgI), which dimerized into an M6L4 interlocked cage (M=CuI). Higher (M3L2)n oligomers were also selectively obtained: an M12L8 truncated tetrahedron (M=CuI) and an M18L12 truncated trigonal prism (M=AgI), both of which contain the same double-propeller motif. The higher oligomers exhibit multiply entangled facial structures that are classified as a trefoil knot and a Solomon link. The inner cavities of the structures encapsulate counter anions, revealing a potential new strategy towards the synthesis of functional hollow structures that is powered by mol. entanglements. The experimental process involved the reaction of 1-Bromo-3-iodobenzene(cas: 591-18-4HPLC of Formula: 591-18-4)

1-Bromo-3-iodobenzene(cas: 591-18-4) has been used in the preparation of 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene and 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene.HPLC of Formula: 591-18-4 Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Green and Efficient Liquid-Phase Exfoliation of BiI3 Nanosheets for Catalytic Carbon-Carbon Cross-Coupling Reactions》 was published in ACS Sustainable Chemistry & Engineering in 2020. These research results belong to Wang, Huiyong; Song, Tao; Su, Xin; Li, Zhiyong; Wang, Jianji. Quality Control of 4-Iodobenzoic acid The article mentions the following:

BiI3 nanosheet dispersions were prepared by ultrasound-mediated exfoliation of BiI3 in the green solvents Me salicylate, triacetin, di-Et phthalate, Et benzoate, or in mixtures of the solvents. BiI3 nanosheets were formed in up to 30% yields and as dispersions containing up to 1.56 mg/mL of BiI3; the thickness of the BiI3 nanosheets is 5-10 nm and their lateral dimensions are around 1μm. Solvent-cosolvent interactions in the mixed solvents are a critical factor in the liquid-phase exfoliation. The BiI3 nanosheets were used as a catalyst for the Suzuki coupling of aryl iodides with phenylboronic acid mediated by TMEDA and KOH in THF to yield 4-substituted biphenyls in 75-91% yields. The experimental part of the paper was very detailed, including the reaction process of 4-Iodobenzoic acid(cas: 619-58-9Quality Control of 4-Iodobenzoic acid)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine.Quality Control of 4-Iodobenzoic acid In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Triptycenyl Sulfide: A Practical and Active Catalyst for Electrophilic Aromatic Halogenation Using N-Halosuccinimides》 was published in Journal of the American Chemical Society in 2020. These research results belong to Nishii, Yuji; Ikeda, Mitsuhiro; Hayashi, Yoshihiro; Kawauchi, Susumu; Miura, Masahiro. Recommanded Product: 516-12-1 The article mentions the following:

A Lewis base catalyst Trip-SMe (Trip = triptycenyl) for electrophilic aromatic halogenation using N-halosuccinimides (NXS) is introduced. In the presence of an appropriate activator (as a noncoordinating-anion source), a series of unactivated aromatic compounds were halogenated at ambient temperature using NXS. This catalytic system was applicable to transformations that are currently unachievable except for the use of Br2 or Cl2: e.g., multihalogenation of naphthalene, regioselective bromination of BINOL, etc. Controlled experiments revealed that the triptycenyl substituent exerts a crucial role for the catalytic activity, and kinetic experiments implied the occurrence of a sulfonium salt [Trip-S(Me)Br][SbF6] as an active species. Compared to simple dialkyl sulfides, Trip-SMe exhibited a significant charge-separated ion pair character within the halonium complex whose structural information was obtained by the single-crystal X-ray anal. A preliminary computational study disclosed that the π system of the triptycenyl functionality is a key motif to consolidate the enhancement of electrophilicity. In the experiment, the researchers used 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Recommanded Product: 516-12-1)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Recommanded Product: 516-12-1

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Synthesis and Structure of Tin and Germanium Complexes as Precursors Containing Alkoxyaminoalkoxide Ligands for Thin Film Transistors》 was published in European Journal of Inorganic Chemistry in 2020. These research results belong to Lee, Ga Yeon; Lee, Ji Hun; Han, Seong Ho; Park, Bo Keun; Son, Seung Uk; Kim, Chang Gyoun; Jeon, Dong Ju; Chung, Taek-Mo. HPLC of Formula: 1774-47-6 The article mentions the following:

This paper describes the preparation of four novel Sn and Ge complexes containing alkoxyaminoalkoxide type ligands {L1H = 1-[methoxy(methyl)amino]-2-methylpropan-2-ol; L2H = 1-[methoxy(methyl)amino]-2-methylbutan-2-ol} for potential use as precursors for thin film transistors. All compounds were prepared at room temperature by stirring a solution containing Sn(btsa)2 [btsa = bis(trimethylsilyl)amide] or Ge(btsa)2 with two equivalent of L1H or L2H to form Sn(L1)2 (1), Sn(L2)2 (2), Ge(L1)2 (3) and Ge(L2)2 (4). All of the complexes were characterized by NMR and FTIR spectroscopy as well as elemental and thermogravimetric analyses. When the more sym. and compact ligand L1H was applied, solid products 1 and 3 were generated and their structures were studied using x-ray diffraction. Applying the strategy of ligand design at the mol. level, the sym. ligand was changed to an asym. one, replacing one of the two neighboring Me groups of the amino alc. group with an Et group, and forming liquid complexes 2 and 4 for both metals. In addition to this study using Trimethylsulfoxonium iodide, there are many other studies that have used Trimethylsulfoxonium iodide(cas: 1774-47-6HPLC of Formula: 1774-47-6) was used in this study.

Trimethylsulfoxonium iodide(cas: 1774-47-6) reacts with sodium hydride to prepare dimethyloxosulfonium methylide, which is used as a methylene-transfer reagent in synthetic chemistry. It is used to prepare ylide, which reacts with carbonyl compounds to get epoxides. Further, it reacts with alfa,beta-unsaturated esters to get cyclopropyl esters.HPLC of Formula: 1774-47-6

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com