516-12-1 Archives - Page 3 of 10 - Iodides-buliding-blocks

Tao, Y.’s team published research in Hydrocarbon Processing in 2019 | CAS: 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. Application of 516-12-1

The author of 《Ultra-deep desulfurization of FCC gasoline: reactive adsorption strategy》 were Tao, Y.. And the article was published in Hydrocarbon Processing in 2019. Application of 516-12-1 The author mentioned the following in the article:

This article describes the reactive adsorption strategy of ultra-deep desulfurization of FCC gasoline. Com. gasoline is mixed by different cuts from processes such as fluid catalytic cracking, reforming, isomerization, and alkylation. Generally, due to the prehydrotreated feedstock for reforming, isomerization and alkylation units, gasoline from these units contains little or no sulfur.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Application of 516-12-1) was used in this study.

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

Wang, Miao’s team published research in Dalton Transactions in 2021 | CAS: 516-12-1

Wang, Miao; Saad, Ali; Li, Xiaoguang; Peng, Tao; Zhang, Qi-Tao; Kumar, Mohan; Zhao, Wei published an article in 2021. The article was titled 《Solid-state synthesis of single-phase nickel monophosphosulfide for the oxygen evolution reaction》, and you may find the article in Dalton Transactions.Electric Literature of C4H4INO2 The information in the text is summarized as follows:

High-performance and cost-effective nonprecious-metal catalysts are essential for the next-generation oxygen evolution reaction (OER). However, the electrocatalysis of the OER during water splitting is often carried out by using noble metal catalysts, such as RuO2 or IrO2 with high-cost and limited stability. Herein, we reported a successful synthesis of a ternary nickel monophosphosulfide (NiPS) compound via a simple solid-state route and further investigated its electrocatalytic performances for water oxidation It is found that the NiPS electrocatalyst exhibits good OER performance in 1.0 M KOH solution, i.e., achieving a c.d. of 20 mA cm-2 at an overpotential of 400 mV and a Tafel slope of 126 mV dec-1, comparable to com. benchmark RuO2. The ternary NiPS electrocatalyst for the OER is superior to its binary counterparts, i.e., Ni2P and NiS. D. functional theory (DFT) calculations combined with ex situ XPS were performed to obtain further insights into the intrinsic catalytic mechanism of NiPS, and their results clearly revealed that the instability of the Ni=O intermediate during the OH* → O* process and the easy oxidation of the (PS)3- anion favoring the formation of hydroxyl-based species (i.e., Ni(OH)2/NiOOH) on the surface of the catalyst, which plays a crucial role in facilitating the OER activity. Furthermore, we creatively extended this method to the fabrication of heteroatom substituted catalysts and a new quaternary CoNiP2S2 compound was successfully synthesized for the first time in the same way. The structural properties and electrocatalytic performance towards the OER for CoNiP2S2 (e.g., 20 mA cm-2 at 376 mV) are also systematically investigated in this work.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Electric Literature of C4H4INO2) was used in this study.

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

Li, Jing’s team published research in Helvetica Chimica Acta in 2021 | CAS: 516-12-1

Li, Jing; Kwon, Eunsang; Lear, Martin J.; Hayashi, Yujiro published an article in 2021. The article was titled 《Halogen Bonding of N-Halosuccinimides with Amines and Effects of Broensted Acids in Quinuclidine-Catalyzed Halocyclizations》, and you may find the article in Helvetica Chimica Acta.HPLC of Formula: 516-12-1 The information in the text is summarized as follows:

An arguable expectation in halogen chem. is that an amine will react oxidatively with an N-halosuccinimide (NXS) to form an N-halogenated species bearing a covalent N-X bond. While likely for NCS under most conditions, we find this expectation simply not true for NIS and largely inaccurate for NBS. Herein, we disclose evidence through systematic NMR and X-ray studies that non-covalent halogen bonded amine complexes of NIS predominate over covalent N-halogenated species, even with primary and secondary amines. For example, during the catalytic electrophilic halocyclization of gem-disubstituted alkenes by cinchona-like amines, the quinuclidine complexes of NIS and NBS display lower reactivity than their parent N-halosuccinamides and require the presence of an appropriate Broensted acid. Specifically, a Broensted acid and quinuclidine jointly catalyze the halo-cycloetherification of γ-alkenyl alcs. with NIS or NBS, while only quinuclidine acts as a catalyst in the halolactonization of γ-alkenoic acids. Although our evidence confirms a transient N-halogenated quaternary ammonium salt as the halonium species, it is important to note that NIS predominantly forms ‘off-cycle’ halogen bonded amine complexes in solution1-Iodopyrrolidine-2,5-dione(cas: 516-12-1HPLC of Formula: 516-12-1) was used in this study.

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

Mahammed, Atif’s team published research in Chemical Science in 2019 | CAS: 516-12-1

The author of 《Phosphorus corrole complexes: from property tuning to applications in photocatalysis and triplet-triplet annihilation upconversion》 were Mahammed, Atif; Chen, Kepeng; Vestfrid, Jenya; Zhao, Jianzhang; Gross, Zeev. And the article was published in Chemical Science in 2019. Reference of 1-Iodopyrrolidine-2,5-dione The author mentioned the following in the article:

Efficient triplet photosensitizers are important for fundamental photochem. studies and applications such as triplet-triplet annihilation upconversion (TTA UC), photoredox catalytic organic reactions and photovoltaics. We now report a series of phosphorus corrole compounds as efficient visible light-harvesting metal-free triplet photosensitizers. While the heavy-atom-free phosphorus corroles show absorption in the visible spectral region (centered at 573 nm) and have a decent triplet state quantum yield (ΦΔ = 49%), iodo-substitution on the corrole core induces red-shifted absorption (589 nm) and improves intersystem crossing significantly (ΦΔ = 67%). Nanosecond transient absorption spectra confirm triplet state formation upon photoexcitation (τT = 312 μs) and the iodinated derivatives also display near IR phosphorescence in fluid solution at room temperature (λem = 796 nm, τp = 412 μs). Both singlet oxygen (1O2) and superoxide radical anions (O2- ·) may be produced with the phosphorus corroles, which are competent photocatalysts for the oxidative coupling of benzylamine (the Aza Henry reaction). Very efficient TTA UC was observed with the phosphorus corroles as triplet photosensitizers and perylene as the triplet acceptor, with upconversion quantum yields of up to ΦUC = 38.9% (a factor of 2 was used in the equation) and a very large anti-Stokes effect of 0.5 eV. In the experimental materials used by the author, we found 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Reference of 1-Iodopyrrolidine-2,5-dione)

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

Gorbe, Monica’s team published research in Dyes and Pigments in 2019 | CAS: 516-12-1

The author of 《Halogen-containing BODIPY derivatives for photodynamic therapy》 were Gorbe, Monica; Costero, Ana M.; Sancenon, Felix; Martinez-Manez, Ramon; Ballesteros-Cillero, Rafael; Ochando, Luis E.; Chulvi, Katherine; Gotor, Raul; Gil, Salvador. And the article was published in Dyes and Pigments in 2019. Related Products of 516-12-1 The author mentioned the following in the article:

Two iodinated (1 and 2) and two brominated (3 and 4) BODIPY-based photosensitizers are prepared and characterized using slightly modified synthetic procedures previously described. 1-4 present intense absorption bands in the 510-540 nm interval and very weak emissions due to the presence of halogen atoms in their structure. Irradiation of aqueous solutions of 1-4 with visible light (wavelength > 475 nm) induce the generation of singlet oxygen with quantum yields of ca. 0.62-0.66 for the photosensitizers containing iodine atoms (1 and 2) and of ca. 0.16-0.21 for the brominated counterparts (3 and 4). In vitro studies carried out with HeLa, SCC-13 and HaCaT cell lines and the four photosensitizers show marked reductions in cell viability with lower IC50 values for the iodinated derivatives (in the 0.82-2.51 range) than those found for the brominated compounds (in the 0.91-8.26 range) suggesting that these compounds could be used in photodynamic therapy protocols. Subcellular localization studies carried out using confocal microscopy show that photosensitizers accumulated in the endoplasmic reticulum.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Related Products of 516-12-1) was used in this study.

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

Karak, Milandip’s team published research in Organic Letters in 2019 | CAS: 516-12-1

Formula: C4H4INO2In 2019 ,《1,2-trans Glycosylation via Neighboring Group Participation of 2-O-Alkoxymethyl Groups: Application to One-Pot Oligosaccharide Synthesis》 was published in Organic Letters. The article was written by Karak, Milandip; Joh, Yohei; Suenaga, Masahiko; Oishi, Tohru; Torikai, Kohei. The article contains the following contents:

The use of 2-O-alkoxymethyl groups as effective stereo-directing substituents for the construction of 1,2-trans glycosidic linkages is reported. The observed stereoselectivity arises from the intramol. formation of a five-membered cyclic architecture between the 2-O-alkoxymethyl substituent and the oxocarbenium ion, which provides the expected facial selectivity. Furthermore, the observed stereocontrol and the extremely high reactivity of 2-O-alkoxymethyl-protected donors allowed development of a one-pot sequential glycosylation strategy that should become a powerful tool for the assembly of oligosaccharides. The results came from multiple reactions, including the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Formula: C4H4INO2)

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

Barati Darband, Ghasem’s team published research in Nanoscale in 2019 | CAS: 516-12-1

The author of 《Electrodeposition of Ni-Co-Fe mixed sulfide ultrathin nanosheets on Ni nanocones: a low-cost, durable and high performance catalyst for electrochemical water splitting》 were Barati Darband, Ghasem; Aliofkhazraei, Mahmood; Hyun, Suyeon; Sabour Rouhaghdam, Alireza; Shanmugam, Sangaraju. And the article was published in Nanoscale in 2019. Electric Literature of C4H4INO2 The author mentioned the following in the article:

The development of a bi-functional active and stable catalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is an important challenge in overall electrochem. water splitting. In this study, firstly, nickel nanocones (NNCs) were formed using electrochem. deposition, and then Ni-Co-Fe based mixed sulfide ultrathin nanosheets were obtained by directly depositing on the surface of the nanocones using the CV method. With a hierarchical structure of Ni-Fe-Co-S nanosheets, not only was a high active surface area created, but also the electron transfer and mass transfer were enhanced. This structure also led to the faster release of hydrogen bubbles from the surface. An overpotential value of 106 mV was required on the surface of this electrode to generate a c.d. of 10 mA cm-2 in the HER, whereas, for the OER, 207 mV overpotential was needed to generate a c.d. of 10 mA cm-2. Furthermore, this electrode required 1.54 V potential to generate a c.d. of 10 mA cm-2 in the total electrochem. water splitting. The resulting electrode also exhibited reasonable electrocatalytic stability, and after 10 h of electrolysis in the overall water splitting reaction, the voltage change was negligible. This study introduces a simple, efficient, reasonable and cost-effective method of creating an effective catalyst for the overall water splitting process. In the experiment, the researchers used many compounds, for example, 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Electric Literature of C4H4INO2)

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

Wang, Ping’s team published research in Nature Communications in 2019 | CAS: 516-12-1

The author of 《A broadband and strong visible-light-absorbing photosensitizer boosts hydrogen evolution》 were Wang, Ping; Guo, Song; Wang, Hong-Juan; Chen, Kai-Kai; Zhang, Nan; Zhang, Zhi-Ming; Lu, Tong-Bu. And the article was published in Nature Communications in 2019. Synthetic Route of C4H4INO2 The author mentioned the following in the article:

Developing broadband and strong visible-light-absorbing photosensitizer is highly desired for dramatically improving the utilization of solar energy and boosting artificial photosynthesis. Herein, we develop a facile strategy to co-sensitize Ir-complex with Coumarins and boron dipyrromethene to explore photosensitizer with a broadband covering ca. 50% visible light region (Ir-4). This type of photosensitizer is firstly introduced into water splitting system, exhibiting significantly enhanced performance with over 21 times higher than that of typical Ir(ppy)2(bpy)+, and the turnover number towards Ir-4 reaches to 115840, representing the most active sensitizer among reported mol. photocatalytic systems. Exptl. and theor. investigations reveal that the Ir-mediation not only achieves a long-lived boron dipyrromethene-localized triplet state, but also makes an efficient excitation energy transfer from Coumarin to boron dipyrromethene to trigger the electron transfer. These findings provide an insight for developing broadband and strong visible-light-absorbing multicomponent arrays on mol. level for efficient artificial photosynthesis. In the part of experimental materials, we found many familiar compounds, such as 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Synthetic Route of C4H4INO2)

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

Novotny, Jan’s team published research in Inorganic Chemistry in 2021 | CAS: 516-12-1

Novotny, Jan; Jeremias, Lukas; Nimax, Patrick; Komorovsky, Stanislav; Heinmaa, Ivo; Marek, Radek published their research in Inorganic Chemistry in 2021. The article was titled 《Crystal and Substituent Effects on Paramagnetic NMR Shifts in Transition-Metal Complexes》.Related Products of 516-12-1 The article contains the following contents:

NMR spectroscopy of paramagnetic mols. provides detailed information about their mol. and electron-spin structure. The paramagnetic NMR spectrum is a very rich source of information about the hyperfine interaction between the at. nuclei and the unpaired electron d. The Fermi-contact contribution to ligand hyperfine NMR shifts is particularly informative about the nature of the metal-ligand bonding and the structural arrangements of the ligands coordinated to the metal center. In this account, we provide a detailed exptl. and theor. NMR study of compounds of Cr(III) and Cu(II) coordinated with substituted acetylacetonate (acac) ligands in the solid state. For the first time, we report the exptl. observation of extremely paramagnetically deshielded 13C NMR resonances for these compounds in the range of 900-1200 ppm. We demonstrate an excellent agreement between the exptl. NMR shifts and those calculated using relativistic d.-functional theory. Crystal packing is shown to significantly influence the NMR shifts in the solid state, as demonstrated by theor. calculations of various supramol. clusters. The resonances are assigned to individual atoms in octahedral Cr(acac)3 and square-planar Cu(acac)2 compounds and interpreted by different electron configurations and magnetizations at the central metal atoms resulting in different spin delocalizations and polarizations of the ligand atoms. Further, effects of substituents on the 13C NMR resonance of the ipso carbon atom reaching almost 700 ppm for Cr(acac)3 compounds are interpreted based on the anal. of Fermi-contact hyperfine contributions. The results came from multiple reactions, including the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Related Products of 516-12-1)

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

Rodrigues, Juliana M.’s team published research in Tetrahedron in 2019 | CAS: 516-12-1

In 2019,Tetrahedron included an article by Rodrigues, Juliana M.; Buisson, Pierre; Pereira, Joana M.; Pinheiro, Ines M.; Fernandez-Marcelo, Tamara; Vasconcelos, M. Helena; Berteina-Raboin, Sabine; Queiroz, Maria-Joao R. P.. Category: iodides-buliding-blocks. The article was titled 《Synthesis of novel 8-(het)aryl-6H-pyrano[4′,3′:4,5]thieno[3,2-b]pyridines by 6-endo-dig cyclization of Sonogashira products and halolactonizations with Cu salts/NXS. Preliminary antitumor evaluation》. The information in the text is summarized as follows:

Novel 8-(het)aryl-6H-pyrano[4′,3′:4,5]thieno[3,2-b]pyridines were prepared in good to high yields by a tandem one-pot procedure of Sonogashira coupling and 6-endo-dig lactonization from 3-bromothieno[3,2-b]pyridine-2-carboxylic acid and (het)arylalkynes. Sonogashira coupling products were also prepared from the corresponding Me ester giving in the same reaction the corresponding 6-endo-dig compounds as minor products. The Sonogashira Ph ester product gave cyclization with electrophiles only in low to moderate yields. Nevertheless, halolactonizations using Cu(I) or (II) salts/N-halosuccinimides (NXS) from either the Ph ester or the carboxylic acid derivatives occurred in good to high yields. The growth inhibition potential of the compounds was evaluated using human tumor cell lines, HCT-15 (colorectal adenocarcinoma) and NCI-H460 (non-small cell lung cancer) and studies of apoptosis induction were performed for the three most promising compounds in HCT-15 cells. Two of them caused almost 40% of cell death by apoptosis when tested at their 1.5 x GI50 concentrations The tricyclic lactone with a F atom in the meta position showed to be the most promising one. The experimental part of the paper was very detailed, including the reaction process of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Category: iodides-buliding-blocks)

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