Tag: 200-300

COA of Formula: C6H3ClINO2On October 31, 2007 ,《Applicability aspects of transition metal-catalyzed aromatic amination protocols in medicinal chemistry》 appeared in Advanced Synthesis & Catalysis. The author of the article were Tasler, Stefan; Mies, Jan; Lang, Martin. The article conveys some information:

The application of palladium- and copper-catalyzed reactions for the aromatic amination of pharmacol. relevant scaffolds is investigated. The focus is set on the scope of several protocols for the introduction of amines of broad structural diversity, allowing for the synthesis of numerous derivatives of one biol. hit structure for screening in biol. assay systems. Thus, attaining optimized yields and TONs had not a major priority, most important were practical aspects, that is no further purification and drying of reagents and solvents had to be envisaged, ideally only a few transition metal-based protocols had to be applied for synthesizing structurally diverse compounds in sufficient amounts (several milligrams) for screening without any fine-tuning of conditions and catalytic systems. After reading the article, we found that the author used 1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3COA of Formula: C6H3ClINO2)

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides.COA of Formula: C6H3ClINO2 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.

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

《Molecular Bending: An Important Factor Affecting the Packing of Self-Assembled Monolayers of Triptycene-Based Molecular Rods on a (111) Gold Surface》 was written by Roncevic, Igor; Kaletova, Eva; Varga, Katarina; Cisarova, Ivana; Bastl, Zdenek; Jiang, Jyh-Chiang; Kaleta, Jiri. Formula: C5H4INThis research focused ontriptycene mol rod bending self assembled monolayer gold surface. The article conveys some information:

The present study has identified mol. bending as an important factor that has a profound effect on the self-assembly of originally rod-shaped organic mols. on a (111) gold surface. This was demonstrated on three specifically designed rigid mol. rods carrying archetypal anchoring groups (pyridyl units and thiols) on one terminus. These rods were used to prepare corresponding self-assembled monolayers (SAMs), and a combination of various anal. techniques revealed that originally straight mol. rods that were bent once adsorbed on a metallic surface, acquiring a characteristic “”J-shape””. Extensive d. functional theory calculations, including in silico reconstruction of such SAMs on (111) gold, clearly confirmed exptl. observations. In the experiment, the researchers used many compounds, for example, 4-Iodopyridine(cas: 15854-87-2Formula: C5H4IN)

4-Iodopyridine(cas: 15854-87-2) is a halogenated heterocycle that is a building block for proteomics research. 4-Iodopyridine is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists.Formula: C5H4IN

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

SDS of cas: 589-87-7In 2021 ,《On-Surface Formation of Cyano-Vinylene Linked Chains by Knoevenagel Condensation》 was published in Chemistry – A European Journal. The article was written by Au-Yeung, Kwan Ho; Kuehne, Tim; Becker, Daniel; Richter, Marcus; Ryndyk, Dmitry A.; Cuniberti, Gianaurelio; Heine, Thomas; Feng, Xinliang; Moresco, Francesca. The article contains the following contents:

The rapid development of on-surface synthesis provides a unique approach toward the formation of carbon-based nanostructures with designed properties. Herein, we present the on-surface formation of CN-substituted phenylene vinylene chains on the Au(111) surface, thermally induced by annealing the substrate stepwise at temperatures between 220°C and 240°C. The reaction is investigated by scanning tunneling microscopy and d. functional theory. Supported by the calculated reaction pathway, we assign the observed chain formation to a Knoevenagel condensation between an aldehyde and a methylene nitrile substituent. The experimental part of the paper was very detailed, including the reaction process of 1-Bromo-4-iodobenzene(cas: 589-87-7SDS of cas: 589-87-7)

1-Bromo-4-iodobenzene(cas: 589-87-7) is mainly used as the OLED pharmaceutical intermediate, as reagent for in situ desilylation and coupling of silylated alkynes, as substrate in copper-free Sonogashira coupling in aqueous acetone..SDS of cas: 589-87-7 It is also used in synthesis of β,β,dibromostyrenes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids)

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

Related Products of 1774-47-6In 2021 ,《Lewis acid-catalyzed [3 + 2] annulations of oxindole based spirocyclic donor-acceptor cyclopropanes with ynamides》 was published in Organic & Biomolecular Chemistry. The article was written by Zhang, Dongxin; Cheng, Qihang; Chen, Lvjia; Deng, Huiqing; Cai, Hu; Zhang, Qian-Feng. The article contains the following contents:

The [3 + 2] annulations of oxindole based spirocyclic donor-acceptor cyclopropanes and ynamides catalyzed by copper triflate was developed for the synthesis of biol. important spirocyclopenteneoxindoles. These reactions tolerated a wide scope of substrates and provided the desired products in good to high yields (up to 90%) with up to >40 : 1 diastereoselectivities under mild conditions.Trimethylsulfoxonium iodide(cas: 1774-47-6Related Products of 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.Related Products of 1774-47-6

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

Quality Control of 1-IodonaphthaleneIn 2021 ,《Single-molecule junction formation in break-junction measurements》 was published in Journal of Physical Chemistry Letters. The article was written by Fu, Tianren; Frommer, Kathleen; Nuckolls, Colin; Venkataraman, Latha. The article contains the following contents:

The scanning tunneling microscope-based break-junction (STM-BJ) technique is the most common method used to study the electronic properties of single-mol. junctions. It relies on repeatedly forming and rupturing a Au contact in an environment of the target mols. The probability of junction formation is typically very high (∼70-95%), prompting questions relating to how the nanoscale structure of the Au electrode before the metal point contact ruptures alters junction formation. Here we analyze conductance traces measured with the STM-BJ setup by combining correlation anal. and multiple machine learning tools, including gradient-boosted trees and neural networks. We show that two key features describing the Au-Au contact prior to rupture determine the extent of contact relaxation (snapback) and the probability of junction formation. Importantly, our data strongly indicate that mol. junctions are formed prior to the rupture of the Au-Au contact, explaining the high probability of junction formation observed in room-temperature solution measurements. The results came from multiple reactions, including the reaction of 1-Iodonaphthalene(cas: 90-14-2Quality Control of 1-Iodonaphthalene)

1-Iodonaphthalene(cas: 90-14-2) is one of 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. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Quality Control of 1-Iodonaphthalene

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

Computed Properties of C5H4INIn 2021 ,《One-Pot Synthesis of 11C-Labelled Primary Benzamides via Intermediate [11C]Aroyl Dimethylaminopyridinium Salts》 appeared in Chemistry – A European Journal. The author of the article were Ferrat, Melodie; Dahl, Kenneth; Schou, Magnus. The article conveys some information:

Electrophilic 11C-labeled aroyl dimethylaminopyridinium salts, obtained in situ by carbonylative cross-coupling of aryl halides with [11C]carbon monoxide, were prepared for the first time and shown to be valuable intermediates in the synthesis of primary [11C]benzamides. The methodol. furnished a set of benzamide model compounds, including the two poly (ADP-ribose) polymerase (PARP) inhibitors niraparib and veliparib, in moderate to excellent radiochem. yields. In addition to providing a convenient and practical route to primary [11C]benzamides, the current method paves the way for future application of [11C]aroyl dimethylaminopyridinium halide salts in positron emission tomog. (PET) tracer synthesis. The experimental process involved the reaction of 4-Iodopyridine(cas: 15854-87-2Computed Properties of C5H4IN)

4-Iodopyridine(cas: 15854-87-2) is a halogenated heterocycle that is a building block for proteomics research. 4-Iodopyridine is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists.Computed Properties of C5H4IN

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

Computed Properties of C4H4INO2In 2020 ,《Efficient Polymer Solar Cells Based on New Random Copolymers with Porphyrin-Incorporated Side Chains》 appeared in Macromolecular Chemistry and Physics. The author of the article were Liu, Zhixin; Huang, Zhuohao; Chen, Yuzhuo; Xu, Tao; Yu, Hao; Guo, Xia; Yan, Lei; Zhang, Maojie; Wong, Wai-Yeung; Wang, Xingzhu. The article conveys some information:

Two new wide bandgap block copolymers (PL1 and PL2) with porphyrin-incorporated side chains are designed and used as electron donors for solution-processed bulk heterojunction polymer solar cells. The photophys., electrochem., and photovoltaic properties, charge transport mobility and film morphol. of these 2 block copolymers are studied. Detailed studies reveal that the different alkyl groups and electron-withdrawing substituents on the porphyrin pendant units have significant influence on the polymer solubility, absorption energy level, band gap, and charge separation in the bulk-heterojunction thin films, and thus the overall photovoltaic performances. Organic photovoltaic devices derived from these copolymers and ([6,6]-phenyl-C71-butyric acid Me ester) (PC71BM) acceptor show the best power conversion efficiencies of 5.83% and 7.14%, resp. The inclusion of a certain proportion of side chain porphyrin group as a pendant in the traditional donor-acceptor (D-A) type polymer can broaden the mol. absorption range and become a full-color absorbing mol. The size of the porphyrin pendant also has an obvious effect on the properties of the mol. The results came from multiple reactions, including the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Computed Properties of C4H4INO2)

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. Computed Properties of C4H4INO2

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

Thorat, Vijaykumar H.; Aman, Hasil; Tsai, Yu-Lin; Pallikonda, Gangaram; Chuang, Gary Jing; Hsieh, Jen-Chieh published an article in 2021. The article was titled 《Cobalt-catalyzed coupling reactions of 2-halobenzamides with alkynes: investigation of ligand-controlled dual pathways》, and you may find the article in Organic Chemistry Frontiers.SDS of cas: 88-67-5 The information in the text is summarized as follows:

The Co-catalyzed reactions of 2-halobenzamides and alkynes to form isoquinolones or 2-vinyl benzamides were described here. The formation of the two selective products was fully controlled by adopted ligands. A study of the mechanism demonstrated that these two reactions proceed through different pathways. The radical process and the two-electron transfer activation of the C-X bond were resp. proposed for these two reactions. In the experimental materials used by the author, we found 2-Iodobenzoic acid(cas: 88-67-5SDS of cas: 88-67-5)

2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.SDS of cas: 88-67-5

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

Tague, Andrew J.; Putsathit, Papanin; Riley, Thomas V.; Keller, Paul A.; Pyne, Stephen G. published their research in ACS Medicinal Chemistry Letters in 2021. The article was titled 《Positional Isomers of Biphenyl Antimicrobial Peptidomimetic Amphiphiles》.Quality Control of 3-Iodophenol The article contains the following contents:

Small-mol. antimicrobial peptidomimetic amphiphiles represent a promising class of novel antimicrobials with the potential for widespread therapeutic application. To investigate the role of spatial positioning for key hydrophobic and hydrophilic groups on the antimicrobial efficacy and selectivity, positional isomers of the lead biphenyl antimicrobial peptidomimetic compound 1 were synthesized and subjected to microbial growth inhibition and mammalian toxicity assays. Positional isomer 4 exhibited 4-8x increased efficacy against the pathogenic Gram-neg. bacteria Pseudomonas aeruginosa and Escherichia coli (MIC = 2 μg/mL), while isomers 2, 3, and 7 exhibited a 4x increase in activity against Acinetobacter baumannii (MIC = 4 μg/mL). Changes in mol. shape had a significant impact on Gram-neg. antibacterial efficacy and the resultant spectrum of activity, whereas all structural isomers exhibited significant efficacy (MIC = 0.25-8 μg/mL) against Gram-pos. bacterial pathogens (e.g., methicillin-resistant Staphylococcus aureus, Streptococcus pneumoniae, and Enterococcus faecalis). In the experimental materials used by the author, we found 3-Iodophenol(cas: 626-02-8Quality Control of 3-Iodophenol)

3-Iodophenol(cas: 626-02-8) 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. Quality Control of 3-Iodophenol 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

Lee, Seung Cheol; Son, Jeong-Yu; Kim, Jin Young; Eom, Hyeonsik; Jang, Seong Bin; Lee, Phil Ho published their research in Advanced Synthesis & Catalysis in 2021. The article was titled 《Regioselective and Chemodivergent Synthesis of Azulenolactones and Azulenolactams from Rhodium(III)-Catalyzed Reactions of Azulenecarboxamides with Sulfoxonium Ylides》.Product Details of 1774-47-6 The article contains the following contents:

A regioselective and chemodivergent synthetic approach for azulenolactones I (R1 = H, 8-Me, 8-Ph; R2 = H, Cl, Me; R3 = Ph, 3-MeC6H4, 4-ClC6H4, etc.; R4 = H, Me, Ph, 3-MeOC6H4) and azulenolactams II (R1 = H, 8-Me; R2 = H, Cl, Me; R3 = nBu, Ph, 3-MeC6H4, etc.; R4 = H, Me, Ph, 3-MeOC6H4) as a new scaffold was demonstrated through Rh(III)-catalyzed reaction of N-methoxyazulene-1-carboxamides with sulfoxonium ylides. Sulfoxonium ylides that act as a precursor of secondary carbene was described, leading to the selective formation of azulenolactones and azulenolactams bearing two substituents on a newly introduced double bond. This method demonstrated functionalization of less reactive 2-position of azulene to overcome the natural reactivity. In the experiment, the researchers used many compounds, for example, Trimethylsulfoxonium iodide(cas: 1774-47-6Product Details of 1774-47-6)

Trimethylsulfoxonium iodide(cas: 1774-47-6) is a sulfoxonium salt. It is used to generate dimethyloxosulfonium methylide by reaction with sodium hydride. The latter compound is used as a methylene-transfer reagent, and is used to prepare epoxides.Product Details of 1774-47-6

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