Tag: 200-300

In 2019,Advanced Synthesis & Catalysis included an article by Tu, Zhi; Du, Yi; Cao, Xiaoji; Liu, Yunyun. SDS of cas: 589-87-7. The article was titled 《Tunable Single and Double γ-C-H Arylation of Phenylacetamides Directed by o-Aminophenols》. The information in the text is summarized as follows:

The cheap and easily available o-aminophenols (OAPs) have been identified as practical directing component for the Pd-catalyzed aromatic γ-C-H bond arylation of phenylacetamides. Notably, the selective single and double arylation of the C-H bond(s) in the γ-potion has been independently realized by simply modifying reaction conditions. The catalytic system of Pd(CF3OO)2/K2S2O8/K2CO3 enables the selective single C-H arylation. On the other hand, the catalysis of Pd(OAc)2 in the presence of KIO3/K2CO3 induces the selective arylation of both γ-C-H bonds. 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) has been employed as reagent for in situ desilylation and coupling of silylated alkynes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids), as substrate in copper-free Sonogashira coupling in aqueous acetone in synthesis of β,β,dibromostyrenesSDS of cas: 589-87-7

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

In 2019,Journal of Organic Chemistry included an article by Yu, Fazhi; Mao, Runyu; Yu, Mingcheng; Gu, Xianfeng; Wang, Yonghui. Electric Literature of C7H7I. The article was titled 《Generation of Aryl Radicals from Aryl Halides: Rongalite-Promoted Transition-Metal-Free Arylation》. The information in the text is summarized as follows:

A practical method for the generation of aryl radicals from aryl halides is reported. Rongalite as a precursor of super electron donors was used to initiate a series of electron-catalyzed reactions under mild conditions. These transition-metal-free radical chain reactions enable the efficient formation of C-C, C-S, and C-P bonds through homolytic aromatic substitution or SRN1 reactions. Moreover, the synthesis of antipsychotic drug quetiapine was performed on gram scale through the described method. This protocol demonstrated its potential as a promising arylation method in organic synthesis. The experimental process involved the reaction of 1-Iodo-4-methylbenzene(cas: 624-31-7Electric Literature of C7H7I)

1-Iodo-4-methylbenzene(cas: 624-31-7) undergoes Suzuki-Miyaura coupling reaction with phenylboronic acid catalyzed by (Ni,Mg)3Si2O5(OH)4 solid-solution nanotubes loaded with palladium.Electric Literature of C7H7I

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

In 2018,Lo, Chen-Tsyr; Isawa, Yuta; Nakabayashi, Kazuhiro; Mori, Hideharu published 《Design of ion-conductive core-shell nanoparticles via site-selective quaternization of triazole-triazolium salt block copolymers》.European Polymer Journal published the findings.Formula: C2H4I2 The information in the text is summarized as follows:

Triazolium-based ion-conductive nanoparticles (NPs) with crosslinked cores were synthesized using a self-assembled block copolymer comprising N-vinyl-4-ethyl-1,2,4-triazolium bis(trifluoromethanesulfonyl)imide (NVETri-NTf2) and N-vinyl-1,2,4-triazole (NVTri) and site-selective crosslinking quaternization in a selective solvent. Four different dihalide compounds, namely diiodoethane, diiodooctane, dibromoethane, and dibromooctane, afforded four core-shell NPs NP(C2-I), NP(C8-I), NP(C2-Br), and NP(C8-Br), resp. DLS analyses demonstrated the formation of stable NPs with uniform sizes (mean diameter = 192 nm for NP(C2-I), 196 nm for NP(C8-I), and 195 nm for NP(C2-Br)). Among these, NP(C2-Br) exhibited the highest ionic conductivities. In the presence of 30 wt% ionic liquid, high ionic conductivities of 1.26 × 10-3, 3.31 × 10-4, and 1.36 × 10-4 S/cm were achieved with solid-state NP(C2-Br) at 90, 55, and 25°C, resp., which are due to the enhanced segmental mol. motion and the formation of a preferable ionic-conductive path composed of the hydrophobic ionic-liquid based shell with the added ionic liquid In addition to this study using 1,2-Diiodoethane, there are many other studies that have used 1,2-Diiodoethane(cas: 624-73-7Formula: C2H4I2) was used in this study.

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond. Iodo 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.Formula: C2H4I2

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

Senthilkumar, N.; Dominic Ravichandran, Y.; Rajesh, R. published their research in Tetrahedron Letters on December 10 ,2014. The article was titled 《A concise Pd catalyzed cross coupling reaction along with deprotection for the synthesis of a new series of pyrimidine derivatives》.Related Products of 3993-79-1 The article contains the following contents:

A new series of pyrimidine compounds bearing 2-amino, 4-azepanone, and 5-aryl substituents (e.g. I)w were synthesized for the first time from the com. available 2-amino-4-hydroxypyrimidine. The key step in the reaction is a conceptually new single step palladium-catalyzed cross coupling along with the deprotection of N,N-diisopropylformimidamide using bis(triphenylphosphine)palladium(II) dichloride [PdCl2(PPh3)2]. After reading the article, we found that the author used 2-Amino-5-iodopyrimidin-4(1H)-one(cas: 3993-79-1Related Products of 3993-79-1)

2-Amino-5-iodopyrimidin-4(1H)-one(cas: 3993-79-1) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Related Products of 3993-79-1

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

《Transition-Metal-, Additive-, and Solvent-Free [3+3] Annulation of RCF2-Imidoyl Sulfoxonium Ylides with Cyclopropenones to Give Multifunctionalized CF3-Pyridones》 was written by Wen, Si; Chen, Yanhui; Tian, Qingyu; Zhang, Yuqing; Cheng, Guolin. Product Details of 1774-47-6This research focused ontriaryl trifluoromethylpyridone preparation green chem; imidoyl sulfoxonium ylide cyclopropenone annulation. The article conveys some information:

An efficient and practical strategy was developed to synthesize 1,3,4-triaryl-6-trifluoromethylpyridones from CF3-imidoyl sulfoxonium ylides and cyclopropenones in good to excellent yields. This stepwise [3+3] annulation reaction was carried out under transition-metal-, additive-, and solvent-free conditions, generating 1 equiv of DMSO as byproduct and tolerating a series of functional groups. The experimental part of the paper was very detailed, including the reaction process of Trimethylsulfoxonium iodide(cas: 1774-47-6Product Details of 1774-47-6)

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.Product Details of 1774-47-6

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

Computed Properties of C10H7IIn 2022 ,《Cobalt-catalyzed carbonylative synthesis of free (NH)-tetrahydro-β-carbolinones from tryptamine derivatives》 was published in Organic Chemistry Frontiers. The article was written by Zhu, Yiwen; Guo, Binghu; Gao, Shenkui; Ying, Jun; Wu, Xiao-Feng. The article contains the following contents:

A new cobalt-catalyzed carbonylative synthesis of free (NH)-tetrahydro-βcarbolinones I [R1 = H, 7-Me, 6-MeO, etc.; R2 = H, Me, Bn, etc.] from tryptamine derivatives II was developed. This reaction employs a cobalt(II) salt as the non-noble catalyst with TFBen as the CO source, and a variety of free (NH)-tetrahydro-βcarbolinones I were produced in good yields using a traceless directing group strategy. Furthermore, late-stage modifications of several bioactive mols. (sorbic acid, probenecid and febuxostat) could also be realized. The oxidant, silver salt, could be recycled and reused. In the part of experimental materials, we found many familiar compounds, such as 1-Iodonaphthalene(cas: 90-14-2Computed Properties of C10H7I)

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.Computed Properties of C10H7I

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

COA of Formula: C3H9IOSIn 2020 ,《Imidazol-5-one as an Acceptor in Donor-Acceptor Cyclopropanes: Cycloaddition with Aldehydes》 was published in Organic Letters. The article was written by Mikhaylov, Andrey A.; Kuleshov, Andrei V.; Solyev, Pavel N.; Korlyukov, Alexander A.; Dorovatovskii, Pavel V.; Mineev, Konstantin S.; Baranov, Mikhail S.. The article contains the following contents:

Spiro[imidazol-5-one-4,1′-cyclopropanes] behave as donor-acceptor (D-A) cyclopropanes in a formal cycloaddition reaction with aldehydes. The activation of such type of cyclopropanes is achieved with an equivalent of Bronsted acid. The reaction proceeds in high yields of 51-92% and demonstrates moderate diastereoselectivity at the quaternary stereocenter, which is determined by the electron-donating nature of the aldehyde partner. The ease of separation of stereoisomers allowed the creation of a library of 44 spiroannulated tetrahydrofurans with various substitution patterns. After reading the article, we found that the author used Trimethylsulfoxonium iodide(cas: 1774-47-6COA of Formula: C3H9IOS)

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.COA of Formula: C3H9IOS

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

Recommanded Product: 626-02-8In 2021 ,《Breathing Room: Restoring Free Rotation in a Schiff-Base Macrocycle through Endoperoxide Formation》 appeared in Organic Letters. The author of the article were Chaudhry, Mohammad T.; Ota, Seiya; Lelj, Francesco; MacLachlan, Mark J.. The article conveys some information:

Macrocyclization is a popular method for preparing hosts, but it can have unintended effects, like limiting mol. free rotation to yield mixtures of inseparable isomers. We report a [3 + 3] Schiff-base macrocycle I (1) with anthracene bridges. Restricted rotation about the phenyl-anthracene bonds leads 1 to exist as a mixture of conformations (1Cs and 1C3v). Macrocycle 1 was photooxidized to tris(endoperoxide) adduct 4, alleviating restricted rotation. These results were supported by spectroscopic, structural, and computational analyses. The results came from multiple reactions, including the reaction of 3-Iodophenol(cas: 626-02-8Recommanded Product: 626-02-8)

3-Iodophenol(cas: 626-02-8) 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.Recommanded Product: 626-02-8

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

Computed Properties of C2H4I2In 2022 ,《Optimizing functional layer of cation exchange membrane by three-dimensional cross-linking quaternization for enhancing monovalent selectivity》 appeared in Chinese Chemical Letters. The author of the article were Pan, Jiefeng; Zhao, Lei; Yu, Xiaohong; Dong, Jiajing; Liu, Lingling; Zhao, Xueting; Liu, Lifen. The article conveys some information:

Monovalent cation perm-selective membrane (MCPMs) allow fast and selective transport of monovalent cations, and they are promisingly required for extraction of special ions, such as lithium extraction, acid recovery and sea salt production Herein, we report a novel strategy to design the critical functional layers of MCPMs with both space charge repulsion and cross-linked dense screenability. The in-situ deposition polymerization of pyrrole was carried out on the surface of sulfonated polyphenyl sulfone (SPPSU) substrate membrane followed by crosslinking quaternization of the polypyrrole (PPy) layer with diiodinated functional mols., thus, the membrane obtained more excellent selective permeability and stable transport properties of monovalent cations. It confirms that the designed PPy layers with charged surface and crosslinking structure improved the hydrophilicity, facilitated cation transport and increased ion flux. Meanwhile, for the dense PPy layer, the charged cross-linked structure endowed the functional layer with the synergistic characteristics of Donnan exclusion and pore size sieving for pos. charged ions, which improved the monovalent cation perm-selectivity of the membranes. At a constant c.d. of 5.1 mA/cm2, the optimal membrane exhibited superior perm-selectivity (PNaMg = 2.07) and monovalent cation flux (JNa+ = 2.80 x 10-8 (mol cm-2 s-1)) during electrodialysis. After reading the article, we found that the author used 1,2-Diiodoethane(cas: 624-73-7Computed Properties of C2H4I2)

1,2-Diiodoethane(cas: 624-73-7) 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.Computed Properties of C2H4I2

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

Related Products of 625-99-0In 2020 ,《Palladium catalysed C-H arylation of pyrenes: access to a new class of exfoliating agents for water-based graphene dispersions》 appeared in Chemical Science. The author of the article were Just-Baringo, Xavier; Shin, Yuyoung; Panigrahi, Adyasha; Zarattini, Marco; Nagyte, Vaiva; Zhao, Ling; Kostarelos, Kostas; Casiraghi, Cinzia; Larrosa, Igor. The article conveys some information:

A new and diverse family of pyrene derivatives was synthesized via palladium-catalyzed C-H ortho-arylation of pyrene-1-carboxylic acid. The strategy afforded easy access to a broad scope of 2-substituted and 1,2-disubstituted pyrenes. The C1-substituent was easily transformed into carboxylic acid, iodide, alkynyl, aryl or alkyl functionalities. This approach gives access to arylated pyrene ammonium salts, which outperformed their non-arylated parent compound during aqueous Liquid Phase Exfoliation (LPE) of graphite and compare favorably to state-of-the-art sodium pyrene-1-sulfonate PS1. This allowed the production of concentrated and stable suspensions of graphene flakes in water. The results came from multiple reactions, including the reaction of 1-Chloro-3-iodobenzene(cas: 625-99-0Related Products of 625-99-0)

1-Chloro-3-iodobenzene(cas: 625-99-0) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Related Products of 625-99-0Iodo 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