Tag: 200-300

In 2022,Kumar, Rajesh; Sayala, Kapil Dev; Tang, Houliang; Tsarevsky, Nicolay V. published an article in Polymer International. The title of the article was 《Hypervalent iodine-based initiators and efficient chain transfer agents for the synthesis of branched polymers from crosslinkers》.Quality Control of 2-Iodobenzoic acid The author mentioned the following in the article:

The synthesis of hyperbranched polymers with alkyl chloride-type chain ends was accomplished by the copolymerization of Me methacrylate and a crosslinker, ethylene glycol dimethacrylate, in the presence of 1-chloro-1,2-benziodoxol-3(1H)-one (BIO-Cl), which served as both a radical initiator and an efficient chain transfer agent. The polymerizations were carried out under thermal (80°C) and photochem. (irradiation with visible light) conditions. As a result of the transfer of Cl atoms from BIO-Cl to the propagating radicals, gelation was delayed to high monomer conversions and, until that point, soluble branched polymers were formed. Even pure crosslinker could be polymerized to moderate conversions (>15%, depending on the amount of added BIO-Cl), yielding branched polymers prior to formation of networks. The effect of the concentrations of crosslinker and hypervalent iodine(III) compound on the outcome of the (co)polymerizations as well as the kinetic features of Cl transfer and decomposition of BIO-Cl were studied in detail. 2022 Society of Industrial Chem. The experimental process involved the reaction of 2-Iodobenzoic acid(cas: 88-67-5Quality Control of 2-Iodobenzoic acid)

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.Quality Control of 2-Iodobenzoic acidHalogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution.

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

In 2022,Gugkaeva, Zalina T.; Mardiyan, Zorayr Z.; Smolyakov, Alexander F.; Poghosyan, Artavazd S.; Saghyan, Ashot S.; Maleev, Victor I.; Larionov, Vladimir A. published an article in Organic Letters. The title of the article was 《Sequential Heck Cross-Coupling and Hydrothiolation Reactions Taking Place in the Ligand Sphere of a Chiral Dehydroalanine Ni(II) Complex: Asymmetric Route to β-Aryl Substituted Cysteines》.HPLC of Formula: 90-14-2 The author mentioned the following in the article:

A practically useful protocol for the asym. synthesis of artificial β-aryl-substituted cysteine derivatives was developed through sequential Pd(II)-catalyzed Heck cross-coupling with aryl iodides and hydrothiolation reaction with various alkyl thiols in the presence of triethylamine taking place in the ligand sphere of a robust and bench-stable chiral dehydroalanine Ni(II) complex. The subsequent acidic decomposition of the single diastereomeric Ni(II) complexes led to the target enantiopure cysteine derivatives The experimental part of the paper was very detailed, including the reaction process of 1-Iodonaphthalene(cas: 90-14-2HPLC of Formula: 90-14-2)

1-Iodonaphthalene(cas: 90-14-2) 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.HPLC of Formula: 90-14-2

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

In 2022,Zeng, Minfeng; Yang, Shuai; Chen, Yuli; Xu, Mengdie; Zhao, Jing; Zhang, Taojun; Sun, Kailang; Yang, Zhen; Zhang, Peng; Cao, Xingzhong; Wang, Baoyi published an article in Applied Clay Science. The title of the article was 《Porous chitosan-derived activated N-doped carbon-supported Pd nanoparticles encaged in Al, Fe pillared montmorillonite as novel heterogeneous catalysts》.Electric Literature of C6H4BrI The author mentioned the following in the article:

Novel pillared montmorillonite encaging porous chitosan derived activated N-doped carbon-supported Pd nanoparticles catalyst (Pd@Al, Fe-Mt/N-C) was synthesized by ion-exchange of the chitosan/Pd precursors into the layered-nanospaces of Al, Fe-pillared montmorillonite and subsequent confinement carbonization. N2 adsorption-desorption study indicated that the resulting nanocomposites have rich mesoporous structures. Effective encagement and in-situ reduction of Pd species led to a decrease in surface area and N2 adsorption, resp. TEM images of the prepared showed that most of the Pd species with a size of 1-3 nm were well dispersed in the interlayer spaces of the pillared montmorillonite. The catalysts showed high catalytic efficiency for the Sonogashira reactions of aryl iodides or bromides with terminal aryl alkynes, and can be recycled 20 runs with no significant loss of activities. The unique encagement of the porous carbon-supported metal catalysts in the layered nanospaces of pillared montmorillonite was further elucidated by the positron annihilation spectroscopy anal. and other structural characterization methods. This layered-nanospace confinement strategy achieves a perfect combination of the advantages of activated carbon and montmorillonite as metal nanoparticle carrier. In addition to this study using 1-Bromo-3-iodobenzene, there are many other studies that have used 1-Bromo-3-iodobenzene(cas: 591-18-4Electric Literature of C6H4BrI) was used in this study.

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.Electric Literature of C6H4BrI Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

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

Zubar, Viktoriia; Brzozowska, Aleksandra; Sklyaruk, Jan; Rueping, Magnus published an article in 2022. The article was titled 《Dehydrogenative and Redox-Neutral N-Heterocyclization of Aminoalcohols Catalyzed by Manganese Pincer Complexes》, and you may find the article in Organometallics.Recommanded Product: 4-Chloro-2-iodoaniline The information in the text is summarized as follows:

A new Mn catalyzed heterocyclization of aminoalcs. was accomplished. A wide range of heterocycles were synthesized including, 1,2,3,4-tetrahydroquinolines, dihydroquinolinones and 2,3,4,5-tetrahydro-1H-benzo[b]azepines. The reaction was performed under mild reaction conditions using air and moisture stable Mn catalysts. The desired heterocycles were obtained in good to excellent yields.4-Chloro-2-iodoaniline(cas: 63069-48-7Recommanded Product: 4-Chloro-2-iodoaniline) was used in this study.

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Recommanded Product: 4-Chloro-2-iodoaniline

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

Faltracco, Matteo; Damian, Matteo; Ruijter, Eelco published an article in 2021. The article was titled 《Synthesis of Carbazoles and Dihydrocarbazoles by a Divergent Cascade Reaction of Donor-Acceptor Cyclopropanes》, and you may find the article in Organic Letters.Recommanded Product: Trimethylsulfoxonium iodide The information in the text is summarized as follows:

An alkylation/olefination cascade of indolecarboxaldehydes and phosphonate-functionalized donor-acceptor cyclopropanes affords functionalized dihydrocarbazoles and cyclohepta[cd]indoles in formal [3 + 3] and [4 + 3]-cycloadditions A minor modification to the reaction conditions also allowed access to the fully aromatic heterocyclic scaffolds by thermal loss of an electron-rich aryl moiety.Trimethylsulfoxonium iodide(cas: 1774-47-6Recommanded Product: Trimethylsulfoxonium iodide) was used in this study.

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.Recommanded Product: Trimethylsulfoxonium iodide

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

Wong, Alice R.; Fastuca, Nicholas J.; Mak, Victor W.; Kerkovius, Jeffrey K.; Stevenson, Susan M.; Reisman, Sarah E. published their research in ACS Central Science in 2021. The article was titled 《Total Syntheses of the C19 Diterpenoid Alkaloids (-)-Talatisamine, (-)-Liljestrandisine, and (-)-Liljestrandinine by a Fragment Coupling Approach》.SDS of cas: 624-73-7 The article contains the following contents:

The C19 diterpenoid alkaloids (C19 DTAs) are a large family of natural products, many of which modulate the activity of ion channels in vivo and are therefore of interest for the study of neurol. and cardiovascular diseases. The complex architectures of these mols. continue to challenge the state-of-the-art in chem. synthesis, particularly with respect to efficient assembly of their polcyclic ring systems. Here, the authors report the total syntheses of (-)-talatisamine (I), (-)-liljestrandisine (II), and (-)-liljestrandinine (III), three aconitine-type C19 DTAs, using a fragment coupling strategy. Key to this approach is a 1,2-addition/semipinacol rearrangement sequence which efficiently joins two complex fragments and sets an all-carbon quaternary center. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diiodoethane(cas: 624-73-7SDS of cas: 624-73-7)

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.SDS of cas: 624-73-7

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

Tripathy, Alisha Rani; Yedase, Girish Suresh; Yatham, Veera Reddy published their research in RSC Advances in 2021. The article was titled 《Cerium photocatalyzed radical Smiles rearrangement of 2-aryloxybenzoic acids》.Application of 626-02-8 The article contains the following contents:

A cerium photocatalyzed aryl migration from an aryl ether to a carboxylic acid group through radical-Smiles rearrangement was reported. This operationally simple protocol utilized inexpensive CeCl3 as a photocatalyst and converted a variety of 2-aryloxybenzoic acids into aryl-2-hydroxybenzoates in good yields. The experimental process involved the reaction of 3-Iodophenol(cas: 626-02-8Application of 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.Application of 626-02-8Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution.

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

《In situ decorated Pd NPs on chitosan-encapsulated Fe3O4/SiO2-NH2 as magnetic catalyst in Suzuki-Miyaura coupling and 4-nitrophenol reduction》 was written by Veisi, Hojat; Ozturk, Turan; Karmakar, Bikash; Tamoradi, Taiebeh; Hemmati, Saba. Quality Control of 1-Iodo-4-methylbenzene And the article was included in Carbohydrate Polymers in 2020. The article conveys some information:

Chitosan is a linear polysaccharide and non-toxic bioactive polymer with a wide variety of applications due to its functional properties such as ease of modification, and biodegradability. In this study, a green protocol for in situ fabrication of ultrafine Pd nanoparticles on chitosan-encapsulated Fe3O4/SiO2-NH2 nanoparticles, without the use of any toxic reducing agents, is described. The catalytic activity of Fe3O4/SiO2-NH2@CS/Pd nanocomposite was investigated through Suzuki-Miyaura coupling to synthesize biaryl derivatives, and reduction of 4-nitrophenol to 4-aminophenol. The core-shell nanoparticle modified with chitosan highly stabilizes the exterior Pd NPs. Leaching test was performed to assure heterogeneity of the catalyst. The magnetically retrievable catalyst was recycled up to eight times in both reactions without significant loss in its activity. In addition to this study using 1-Iodo-4-methylbenzene, there are many other studies that have used 1-Iodo-4-methylbenzene(cas: 624-31-7Quality Control of 1-Iodo-4-methylbenzene) was used in this study.

1-Iodo-4-methylbenzene(cas: 624-31-7) is used in wide range of medicals industrial applications as well as in pharmaceutical intermediates, polarizing films for Liquid Crystal Display (LCD) chemicals.Quality Control of 1-Iodo-4-methylbenzene

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

《Methoxy-Functionalized Triarylamine-Based Hole-Transporting Polymers for Highly Efficient and Stable Perovskite Solar Cells》 was written by Kim, Youngwoong; Kim, Geunjin; Jeon, Nam Joong; Lim, Chulhee; Seo, Jangwon; Kim, Bumjoon J.. Product Details of 589-87-7 And the article was included in ACS Energy Letters in 2020. The article conveys some information:

The hole-transporting layer is an essential component in a perovskite solar cell (PSC) and plays a key role in controlling both power conversion efficiency (PCE) and stability. Here, a new hole-transporting material (HTM), methoxy group-containing poly(triarylamine) (PTAA) (CH3O-PTAA) is reported for efficient PSCs with improved thermal stability. As compared to commonly used PTAA (CH3-PTAA), CH3O-PTAA exhibits enhanced doping ability and stability under thermal stress. With CH3O-PTAA, (FAPbI3)0.85(MAPbBr3)0.15-based PSCs show high PCEs > 20%, comparable to those of CH3-PTAA devices. More importantly, better long-term thermal stability with only 3% reduction from the initial PCE (6.1% reduction on average) has been achieved for encapsulated PSCs with CH3O-PTAA than that of PSCs with CH3-PTAA under dark storage conditions (ISOS-D-3) of 85° and 85% relative humidity (RH) over 1000 h. Detailed studies have been conducted to reveal the strong correlation between the doping behavior of HTMs and the performance of PSCs, which provide useful guidelines for the design of new HTMs for efficient and stable PSCs. In the experimental materials used by the author, we found 1-Bromo-4-iodobenzene(cas: 589-87-7Product Details of 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..Product Details of 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

《Enhancing near-infrared photoluminescence from single-walled carbon nanotubes by defect-engineering using benzoyl peroxide》 was published in Scientific Reports in 2020. These research results belong to Przypis, Lukasz; Krzywiecki, Maciej; Niidome, Yoshiaki; Aoki, Haruka; Shiraki, Tomohiro; Janas, Dawid. Category: iodides-buliding-blocks The article mentions the following:

Single-walled carbon nanotubes (SWCNTs) have been modified with ester groups using typical organic radical chem. Consequently, traps for mobile excitons have been created, which enhanced the optical properties of the material. The proposed methodol. combines the benefits of mainstream approaches to create luminescent defects in SWCNTs while it simultaneously avoids their limitations. A step change was achieved when the aqueous medium was abandoned. The selection of an appropriate organic solvent enabled much more facile modification of SWCNTs. The presented technique is quick and versatile as it can engage numerous reactants to tune the light emission capabilities of SWCNTs. Importantly, it can also utilize SWCNTs sorted by chirality using conjugated polymers to enhance their light emission capabilities. Such differentiation is conducted in organic solvents, so monochiral SWCNT can be directly functionalized using the demonstrated concept in the same medium without the need to redisperse the material in water. In the part of experimental materials, we found many familiar compounds, such as 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Category: iodides-buliding-blocks)

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. Category: iodides-buliding-blocks

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