Month: October 2022

In 2021,Chemical Communications (Cambridge, United Kingdom) included an article by Ramakrishna, E.; Tang, Jia-Dong; Tao, Jia-Ju; Fang, Qiang; Zhang, Zibin; Huang, Jianying; Li, Shijun. Application In Synthesis of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene. The article was titled 《Self-assembly of chiral BINOL cages via imine condensation》. The information in the text is summarized as follows:

Condensation of an (S)- or (R)-BINOL-derived dialdehyde I and tris(2-aminoethyl)amine produced chiral [2+3] imine cages, which were further reduced to furnish more stable chiral amine cages and applied in the enantioselective recognition of (1R,2R)- and (1S,2S)-1,2-diaminocyclohexane. In the part of experimental materials, we found many familiar compounds, such as (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Application In Synthesis of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) 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. Application In Synthesis of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.

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

The author of 《The amplified circularly polarized luminescence emission response of chiral 1,1′-binaphthol-based polymers via Zn(II)-coordination fluorescence enhancement》 were Meng, Fandian; Li, Fei; Yang, Lan; Wang, Yuxiang; Quan, Yiwu; Cheng, Yixiang. And the article was published in Journal of Polymer Science, Part A: Polymer Chemistry in 2018. Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene The author mentioned the following in the article:

Two kinds of chiral 1,1′-binaphthol (BINOL)-based polymer enantiomers were designed and synthesized by the polymerization of 5,5′-((2,2′-bis (octyloxy)-[1,1′-binaphthalene]-3,3′-diyl)bis(ethyne-2,1-diyl))bis(2-hydroxybenzaldehyde) (M1) with alkyl diamine (M2) via nucleophilic addition-elimination reaction. The resulting chiral polymers can exhibit mirror image cotton effects either in the absence or in the presence of Zn2+ ion. Almost no fluorescence or circularly polarized luminescence (CPL) emission could be observed for two chiral BINOL-based polymer enantiomers in the absence of Zn2+. Interestingly, the chiral polymers can show strong fluorescence and CPL response signals upon the addition of Zn2+, which can be attributed to Zn2+-coordination fluorescence enhancement effect. This work can develop a new strategy on the design of the novel CPL materials via metal-coordination reaction. © 2018 Wiley Periodicals, Inc.J. Polym. Sci., Part A: Polym.Chem. 2018. In the part of experimental materials, we found many familiar compounds, such as (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) belongs to 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.Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene

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

《Reactivity Trends in the Gas-Phase Addition of Acetylene to the N-Protonated Aryl Radical Cations of Pyridine, Aniline, and Benzonitrile》 was written by Shiels, Oisin J.; Kelly, P. D.; Bright, Cameron C.; Poad, Berwyck L. J.; Blanksby, Stephen J.; da Silva, Gabriel; Trevitt, Adam J.. Reference of 4-Iodopyridine And the article was included in Journal of the American Society for Mass Spectrometry in 2021. The article conveys some information:

A key step in gas-phase polycyclic aromatic hydrocarbon (PAH) formation involves the addition of acetylene (or other alkyne) to σ-type aromatic radicals, with successive additions yielding more complex PAHs. A similar process can happen for N-containing aromatics In cold diffuse environments, such as the interstellar medium, rates of radical addition may be enhanced when the σ-type radical is charged. This paper investigates the gas-phase ion-mol. reactions of acetylene with nine aromatic distonic σ-type radical cations derived from pyridinium (Pyr), anilinium (Anl), and benzonitrilium (Bzn) ions. Three isomers are studied in each case (radical sites at the ortho, meta, and para positions). Using a room temperature ion trap, second-order rate coefficients, product branching ratios, and reaction efficiencies are measured. The rate coefficients increase from para to ortho positions. The second-order rate coefficients can be sorted into three groups: low, between 1 and 3 x 10-12 cm3 mol.-1 s-1 (3Anl and 4Anl); intermediate, between 5 and 15 x 10-12 cm3 mol.-1 s-1 (2Bzn, 3Bzn, and 4Bzn); and high, between 8 and 31 x 10-11 cm3 mol.-1 s-1 (2Anl, 2Pyr, 3Pyr, and 4Pyr); and 2Anl is the only radical cation with a rate coefficient distinctly different from its isomers. Quantum chem. calculations, using M06-2X-D3(0)/6-31++G(2df,p) geometries and DSD-PBEP86-NL/aug-cc-pVQZ energies, are deployed to rationalize reactivity trends based on the stability of prereactive complexes. The G3X-K method guides the assignment of product ions following adduct formation. The rate coefficient trend can be rationalized by a simple model based on the prereactive complex forward barrier height. The results came from multiple reactions, including the reaction of 4-Iodopyridine(cas: 15854-87-2Reference of 4-Iodopyridine)

4-Iodopyridine(cas: 15854-87-2) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Reference of 4-Iodopyridine

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

In 2022,Sajjadi, Mohaddeseh; Nasrollahzadeh, Mahmoud; Ghafuri, Hossein; Baran, Talat; Orooji, Yasin; Baran, Nuray Yilmaz; Shokouhimehr, Mohammadreza published an article in International Journal of Biological Macromolecules. The title of the article was 《Modified chitosan-zeolite supported Pd nanoparticles: A reusable catalyst for the synthesis of 5-substituted-1H-tetrazoles from aryl halides》.HPLC of Formula: 15854-87-2 The author mentioned the following in the article:

A novel heterogeneous catalyst was developed using chitosan-zeolite supported Pd nanoparticles (PdNPs@CS-Zeo) and used in an efficient synthesis of 5-substituted-1H-tetrazoles I [Ar = Ph, 4-pyridyl, 4-MeC6H4, etc.] from aryl halides with high yields for relatively short reaction times with an easy work-up procedure. In this method, highly effective and reusable PdNPs@CS-Zeo catalyst was used in the reaction of various aryl iodides/bromides with K4[Fe(CN)6] as a non-toxic cyanide source to catalyze the [2 + 3] cycloaddition of the corresponding aryl nitriles with NaN3 in the sequential one-pot preparation of 5-substituted-1H-tetrazoles I. The synthesized PdNPs@CS-Zeo nanocatalyst was characterized using XRD, FTIR, TEM, HRTEM, XPS, Raman, TG-DTG, ICP-OES, BET, and EDS mapping. Addnl., the nanocatalyst could be effectively separated by filtration and reused for multiple times without significant decrease of catalytic activity. In the part of experimental materials, we found many familiar compounds, such as 4-Iodopyridine(cas: 15854-87-2HPLC of Formula: 15854-87-2)

4-Iodopyridine(cas: 15854-87-2) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. HPLC of Formula: 15854-87-2

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

The author of 《Gold redox catalysis for cyclization/arylation of allylic oximes: synthesis of isoxazoline derivatives》 were Jimoh, Abiola Azeez; Hosseyni, Seyedmorteza; Ye, Xiaohan; Wojtas, Lukasz; Hu, Yong; Shi, Xiaodong. And the article was published in Chemical Communications (Cambridge, United Kingdom) in 2019. Recommanded Product: 4-Iodobenzaldehyde The author mentioned the following in the article:

Base-assisted diazonium activation has been employed to promote gold(I)/(III) redox catalysis toward allylic oxime cyclization/aryl coupling. Isoxazolines I (R1 = cyclohexyl, Ph, 3-MeC6H4, 2-naphthyl, etc.; R2 = 4-FC6H4, 4-MeO2CC6H4, 3-EtO-4-F3CC6H3, etc.) were prepared in good to excellent yields from allylic oximes II and aryldiazonium salts R2N2+BF4- using this method, whereas the alternative photoactivation method provided only trace amounts of the isoxazoline products. This study further broadens the scope of gold redox chem. The results came from multiple reactions, including the reaction of 4-Iodobenzaldehyde(cas: 15164-44-0Recommanded Product: 4-Iodobenzaldehyde)

4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.Recommanded Product: 4-Iodobenzaldehyde

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

In 2018,Itsukashi, Masako; Nakashima, Nobuaki; Yatsuhashi, Tomoyuki published 《Coulomb explosion of a series of α, ω-diiodoalkanes in intense laser fields》.Journal of Photochemistry and Photobiology, A: Chemistry published the findings.Recommanded Product: 624-73-7 The information in the text is summarized as follows:

The kinetic energy of ions produced by a Coulomb explosion, in which multiply charged mol. cations dissociate, is determined by the charge number, mass, and geometric configuration of the ions upon explosion. Although the importance of the structural deformation and migration of atoms on kinetic energy variations is well known, there has been little investigation into the effect of charge localization before the ions are released. In this study, the angular distributions of iodine and carbon ions ejected from linear alkanes, which have one iodine atom on each side of an alkyl chain having one to six carbon atoms, are measured. The highly charged iodine ions (I4+, I5+) are emitted mostly along the laser polarization direction, whereas the angular distribution of iodine ions becomes isotropic the longer the alkyl chain and the lower the charge number of iodines are. Furthermore, the longer the alkyl chain, the higher the kinetic energy of iodine and carbon ions. The emission of ions is discussed in terms of the selective ionization of aligned mols. based on their MOs. The charge localization during ionization in strong alternating elec. fields followed by two-body Coulomb explosion via a C-I bond cleavage is proposed. The experimental process involved the reaction of 1,2-Diiodoethane(cas: 624-73-7Recommanded Product: 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.Recommanded Product: 624-73-7

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

Formula: C3H9IOSIn 2019 ,《Controlled synthesis of polymethylene-b-poly(ethylene glycol) as well as its crystallization and self-assembly behavior》 appeared in International Journal of Polymer Analysis and Characterization. The author of the article were Zhang, Yan; Zhou, Qihang; Liu, Yujian. The article conveys some information:

Polymethylene-b-poly(ethylene glycol) (PM-b-PEG) with different block length ratio was synthesized by a combination of polyhomologation and coupling reaction. The effect of hydrophilic and hydrophobic block length on the crystallization process and self-assembly behavior of PM-b-PEG was self-assembled were investigated. The results showed that with the increase of methylene units, the crystallization temperature of PM block raised from 54.59 °C to 70.93 °C gradually, while that of the PEG block reduced from 17.54 °C to 15.23 °C. In addition, the amphiphilic PM-b-PEG was self-assembled into star-like micelles in water, and its diameter extended from 98.2 nm to 151.9 nm as the block length of hydrophobic PM increased from 30 to 70. And the micelles also exhibit super stability when the concentration of copolymer precursor is 0.50 ∼ 0.90 mg/mL and the storage temperature lies in the range of 25 ∼ 60 °C. In the part of experimental materials, we found many familiar compounds, such as Trimethylsulfoxonium iodide(cas: 1774-47-6Formula: 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.Formula: C3H9IOS

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

Serpell, Christopher J.; Park, Ah Young; Robinson, Carol V.; Beer, Paul D. published an article in 2021. The article was titled 《Imidazolium-based catenane host for bromide recognition in aqueous media》, and you may find the article in Chemical Communications (Cambridge, United Kingdom).Name: 3-Iodophenol The information in the text is summarized as follows:

The synthesis of a novel catenated system which is dense in cationic hydrogen bonding imidazolium units is described. The interlocked host system displays a preference for binding of bromide over other halides, overcoming basicity and Hofmeister trends, under aqueous conditions. This is the first example of an imidazolium-based catenane acting as an anion host through C-H hydrogen bonding. After reading the article, we found that the author used 3-Iodophenol(cas: 626-02-8Name: 3-Iodophenol)

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.Name: 3-IodophenolHalogenation 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,Golebiewska, Justyna; Bartoszewicz, Agnieszka; Kalek, Marcin; Stawinski, Jacek published an article in Phosphorus, Sulfur and Silicon and the Related Elements. The title of the article was 《Second generation of nucleotide analogs》.Computed Properties of C4H4INO2 The author mentioned the following in the article:

The most common type of modification of a phosphorus center is the replacement of one or two non-bridging atoms of the phosphate group with different heteroatoms (e.g., sulfur, selenium) or groups of atoms (e.g., Me, borane). Such compounds are referred to as the first generation of nucleotide analogs, e.g. I. We were interested in exploring the possibility of further functionalizing of the heteroatoms present in nucleoside phosphorothioates, phosphoroselenoate or boranephosphonates to create a second generation of nucleotide analogs with hopefully new biol. properties. Here we report a preliminary account of our work on introducing addnl. modifications on the sulfur or selenium heteroatom of nucleotide analogs.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Computed Properties of C4H4INO2) was used in this study.

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

In 2022,Firouzeh, Ebrahim; Kazemi, Foad; Gholinejad, Mohammad; Kaboudin, Babak published an article in Journal of Photochemistry and Photobiology, A: Chemistry. The title of the article was 《Visible photosensitized sonogashira-hagihara coupling through in situ prepared palladium catalyst in N,N-dimethylformamide under copper and amine-free additives》.Product Details of 15164-44-0 The author mentioned the following in the article:

In this study, copper and amine-free photosensitized Sonogashira-Hagihara coupling reaction using Pd(OAc)2 and p-nitrobenzophenone in N,N-dimethylformamide(DMF) under blue LED irradiation was reported. Effect of benzophenone, p-methoxybenzophenone and p-nitrobenzophenone as photosensitizers in Sonogashira-Hagihara reaction were studied in which higher yields were achieved using p-nitrobenzophenone. In situ preparation of palladium nanoparticles and the effect of p-nitrobenzophenone were confirmed using UV-Vis and dynamic light scattering (DLS). It was proposed that the DMF affected the formation and stabilization of palladium nanoparticles. Using this catalytic system, aryl iodides and bromides were reacted efficiently with alkynes between 25 and 60°C. In the experimental materials used by the author, we found 4-Iodobenzaldehyde(cas: 15164-44-0Product Details of 15164-44-0)

4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.Product Details of 15164-44-0

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