Tag: 200-300

In 2015,Graff, Julien; Lastawiecka, Elzbieta; Guenee, Laure; Leroux, Frederic; Alexakis, Alexandre published 《Asymmetric Bromine-Lithium Exchange: Application toward the Synthesis of New Biaryl-Diphosphine Ligands》.Advanced Synthesis & Catalysis published the findings.Application of 624-73-7 The information in the text is summarized as follows:

The desymmetrization of the prochiral tetrabromobiphenyl via asym. bromine-lithium exchange as a key step of synthesis of novel biphenyl-diphosphine ligands is reported. This new approach allows an easy access to twelve new enantiomerically pure atropisomeric ligands in one- to three-step reactions in good to excellent yields. The experimental part of the paper was very detailed, including the reaction process of 1,2-Diiodoethane(cas: 624-73-7Application of 624-73-7)

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs. Oceanic alkyl iodides are believed to be the principal source of atmospheric iodine.Application of 624-73-7

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

Product Details of 697300-79-1On May 6, 2004 ,《5-Substituted Derivatives of 6-Halogeno-3-((2-(S)-azetidinyl)methoxy)pyridine and 6-Halogeno-3-((2-(S)-pyrrolidinyl)methoxy)pyridine with Low Picomolar Affinity for α4β2 Nicotinic Acetylcholine Receptor and Wide Range of Lipophilicity: Potential Probes for Imaging with Positron Emission Tomography》 appeared in Journal of Medicinal Chemistry. The author of the article were Zhang, Yi; Pavlova, Olga A.; Chefer, Svetlana I.; Hall, Andrew W.; Kurian, Varughese; Brown, LaVerne L.; Kimes, Alane S.; Mukhin, Alexey G.; Horti, Andrew G.. The article conveys some information:

Potential positron emission tomog. (PET) ligands with low picomolar affinity at the nicotinic acetylcholine receptor (nAChR) and with lipophilicity (log D) ranging from -1.6 to +1.5 have been synthesized. Most members of the series, which are derivatives of 5-substituted-6-halo-A-85380, exhibited a higher binding affinity at α4β2-nAChRs than epibatidine. An anal., by mol. modeling, revealed an important role of the orientation of the addnl. heterocyclic ring on the binding affinity of the ligands with nAChRs. The existing nicotinic pharmacophore models do not accommodate this finding. Two compounds of the series, 6-[18F]fluoro-5-(3-pyridinyl)-A-85380 (I) and 6-chloro-3-[[2-(S)-azetidinyl]methoxy]-5-[(2-[18F]fluoro-5-pyridinyl)pyridine], were radiolabeled with 18F. Comparison of PET data for [18F]-I and 2-[18F]FA shows the influence of lipophilicity on the binding potential. Recent PET studies with [18F]-I demonstrated that its binding potential values in Rhesus monkey brain were ca. 2.5 times those of 2-[18F]FA. Therefore, [18F]35 and several other members of the series, when radiolabeled, will be suitable for quant. imaging of extrathalamic nAChRs.2-Fluoro-5-iodopyrimidine(cas: 697300-79-1Product Details of 697300-79-1) was used in this study.

2-Fluoro-5-iodopyrimidine(cas: 697300-79-1) 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.Product Details of 697300-79-1

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

《Detailed biodistribution of liposomes prepared with polyborane instead of cholesterol for BNCT: effects of PEGylation》 was written by Takeuchi, Issei; Ishizuka, Yukiko; Uchiro, Hiromi; Makino, Kimiko. Safety of 1,2-DiiodoethaneThis research focused ontumor antitumor boron neutron capture therapy liposome PEGylation. The article conveys some information:

Various drug delivery systems for boron neutron capture therapy (BNCT) have been developed. To selectively destroy cancer cells, the high accumulation and selective delivery of 10B into tumor tissue are required. In this study, a polyborane for BNCT with enhanced hydrophobicity was synthesized from decaborane as a boron carrier, and embedded into bare and PEGylated liposomes. These liposomes having diameters of 40-43 nm were injected into tail vein of tumor-bearing mice to evaluate their biodistribution. Boron concentrations in tumor and tumor/blood ratios of the liposomes were reached over 30 μg/g of tissue and over 5 at 8-24 h, resp. At 12 h after injection, PEGylated liposomes were found in tumor with high boron level (130.0 μg/g of tissue). This result showed that the PEGylated liposomes with a diameter of 40 nm were able to achieve efficient intratumoral 10B amount without replacing the 11B with 10B. In the experiment, the researchers used many compounds, for example, 1,2-Diiodoethane(cas: 624-73-7Safety of 1,2-Diiodoethane)

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.Safety of 1,2-Diiodoethane

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

Application of 63069-48-7In 2021 ,《Photocatalytic three-component annulation enabling stereoselective generation of (Z)-thiochromene 1,1-dioxides》 was published in Organic Chemistry Frontiers. The article was written by Song, Ke-Xian; Qin, Xiao-Yan; Ma, Zi-Xuan; Geng, Fang-Zhou; Hao, Wen-Juan; Tu, Shu-Jiang; Jiang, Bo. The article contains the following contents:

A new photocatalytic three-component annulation of 2-alkynylaryldiazonium tetrafluoroborates with γ-hydroxyl terminal alkynes and sodium metabisulfite is reported using fac-Ir(ppy)3 as the photocatalyst for the first time and used to produce a series of (Z)-thiochromene 1,1-dioxides I (R1 = H, 6-Me, 6-Cl, etc.; R2 = C6H5, 4-MeC6H4, 4-ClC6H4, etc.; R3 = H, 4-Me; R4 = Et, n-Bu, C6H5, etc.) bearing an exocyclic double bond with moderate to good yields in a highly stereoselective manner. A wide variety of easily available substrates with substituent diversity could successfully participate in this photocatalysis with good functional group tolerance. The results came from multiple reactions, including the reaction of 4-Chloro-2-iodoaniline(cas: 63069-48-7Application of 63069-48-7)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. In organic chemistry, amines are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (NH3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines).Application of 63069-48-7

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

Electric Literature of C7H5IOIn 2020 ,《Indium-mediated difunctionalization of iodoalkyl-tethered unactivated alkenes via an intramolecular cyclization and an ensuing palladium-catalyzed cross-coupling reaction with aryl halides》 was published in Organic Chemistry Frontiers. The article was written by Song, Xuan-Di; Li, Xiang-Rui; Wang, Ya-Wen; Chu, Xue-Qiang; Rao, Weidong; Xu, Haiyan; Han, Guo-Zhi; Shen, Zhi-Liang. The article contains the following contents:

An efficient cobalt-catalyzed, indium-mediated difunctionalization of iodoalkyl-tethered unactivated alkenes via a cyclization/cross-coupling sequence was developed. The reactions proceeded effectively with wide functional group tolerance, leading to a wide variety of cyclic compounds, including cyclopentane, furan, pyrrolidine, octahydro-1H-indene, octahydro-benzofuran, hexahydro-4H-furo[2,3-b]pyran, and hexahydro-furo[2,3-b]furan, which are pivotal cores widely found in pharmaceutical and bioactive compounds4-Iodobenzaldehyde(cas: 15164-44-0Electric Literature of C7H5IO) was used in this study.

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.Electric Literature of C7H5IO

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

Synthetic Route of C7H7IIn 2019 ,《Polystyrene-Supported Palladium (Pd@PS)-Catalyzed Carbonylative Annulation of Aryl Iodides Using Oxalic Acid as a Sustainable CO Source for the Synthesis of 2-Aryl Quinazolinones》 appeared in Chemistry – A European Journal. The author of the article were Ram, Shankar; Shaifali; Chauhan, Arvind Singh; Sheetal; Sharma, Ajay Kumar; Das, Pralay. The article conveys some information:

An efficient and convenient strategy for the synthesis of diversely substituted quinazolinones from o-carbamoyl/cyano aniline and aryl iodides using oxalic acid as a CO source under polystyrene supported palladium (Pd@PS) nanoparticles (NPs) catalyzed conditions was developed. The oxalic acid were employed as safe, economic, environmentally benign, sustainable and bench-stable, solid CO surrogate under Double-Layer-Vial (DLV) system for the synthesis of 2-aryl quinazolinones. This methodol. does not require any special high-pressure equipment like autoclaves, microwaves, etc. Moreover, a simple procedure for catalyst preparation, catalyst recyclability, easy handling of reaction, additive and base-free generation of CO, excellent to good yields and vast substrate scope were the addnl. features of developed protocol. The results came from multiple reactions, including the reaction of 1-Iodo-4-methylbenzene(cas: 624-31-7Synthetic Route of C7H7I)

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.Synthetic Route of C7H7I

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

In 2022,Mutra, Mohana Reddy; Wang, Jeh-Jeng published an article in Nature Communications. The title of the article was 《Photoinduced ynamide structural reshuffling and functionalization》.Application In Synthesis of 4-Chloro-2-iodoaniline The author mentioned the following in the article:

In this paper, photoinduced radical trigger regio- and chemoselective ynamide bond fission, structural reshuffling and functionalization of 2-alkynyl-ynamides 4-R-2-(CCR1)C6H3N(Ts)CCR2 (R = H, Me, Et, n-bu, Cl, Br; R1 = Ph, n-Bu, cyclopropyl, etc.; R2 = Ph, 2H-1,3-benzodioxol-5-yl, 2-phenylethyl, etc.) to prepare synthetically inaccessible/challenging chalcogen-substituted indole derivatives I [R3 = tosyl, ethanesulfonyl, cyclopropanesulfonyl, etc.; R4 = I, SeC6H5, Se(CH2)4CH3, etc] with excellent step/atom economy were observed The key breakthroughs of this work include, ynamide bond cleavage, divergent radical precursors, broad scope, easy to handle, larger-scale reactions, and generation of multiple bonds (N-C(sp2), C(sp2)-C(sp2), C(sp2)-SO2R/C-SR, and C-I/C-Se/C-H) in a few minutes without photocatalysts, metals, oxidants, additives. Control experiments and 13C-labeling experiments support the conclusion that sulfone radicals contribute to ynamide structural reshuffling processes via a radical pathway. After reading the article, we found that the author used 4-Chloro-2-iodoaniline(cas: 63069-48-7Application In Synthesis of 4-Chloro-2-iodoaniline)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.Application In Synthesis of 4-Chloro-2-iodoaniline

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

In 2022,Xu, Xiaojia; Ji, Xiaoyu; Chen, Rui; Ye, Fangyuan; Liu, Shuaijun; Zhang, Shuo; Chen, Wei; Wu, Yongzhen; Zhu, Wei-Hong published an article in Advanced Functional Materials. The title of the article was 《Improving Contact and Passivation of Buried Interface for High-Efficiency and Large-Area Inverted Perovskite Solar Cells》.Recommanded Product: 4-Iodopyridine The author mentioned the following in the article:

Inverted-structured perovskite solar cells (PSCs) mostly employ poly-triarylamines (PTAAs) as hole-transporting materials (HTMs), which generally result in low-quality buried interface due to their hydrophobic nature, shallow HOMO levels, and absence of passivation groups. Herein, the authors molecularly engineer the structure of PTAA via removing alkyl groups and incorporating a multifunctional pyridine unit, which not only regulates energy levels and surface wettability, but also passivates interfacial trap-states, thus addressing above-mentioned issues simultaneously. By altering the linking-site on pyridine unit from ortho- (o-PY) to meta- (m-PY) and para-position (p-PY), they observed a gradually improved hydrophilicity and passivation efficacy, mainly owing to increased exposure of the pyridine-nitrogen as well as its lone electron pair, which enhances the contact and interactions with perovskite. The open-circuit voltage and power conversion efficiency (PCE) of inverted-structured PSCs based on these HTMs increased with the same trend. Consequently, the optimal p-PY as HTM enables facile deposition of uniform perovskite films without complicated interlayer optimizations, delivering a remarkably high PCE exceeding 22% (0.09 cm2). Moreover, when enlarging device area tenfold, a comparable PCE of over 20% (1 cm2) can be obtained. These results are among the highest efficiencies for inverted PSCs, demonstrating the high potential of p-PY for future applications. After reading the article, we found that the author used 4-Iodopyridine(cas: 15854-87-2Recommanded Product: 4-Iodopyridine)

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

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

In 2022,Zhang, Enshen; Chen, Chen; Wang, Xueling; Wang, Jian; Shang, Yongjia published an article in Organic Chemistry Frontiers. The title of the article was 《Palladium-catalyzed dearomative 1,4-arylmethylenation of naphthalenes》.Quality Control of 4-Chloro-2-iodoaniline The author mentioned the following in the article:

An efficient palladium-catalyzed construction of E-exocyclic-double-bond-containing spirooxindoles via 1,4-arylmethylenation of naphthalenes has been developed. Aryl aldehyde-derived N-tosylhydrazones were successfully applied as carbene precursors to capture the endocyclic π-allylpalladium intermediate, which was generated via an arylative Heck reaction of the naphthalene-masked conjugated diene, followed by a highly regioselective β-hydride elimination. This reaction features broad functional group tolerance and excellent chemo- and E/Z selectivities. The experimental process involved the reaction of 4-Chloro-2-iodoaniline(cas: 63069-48-7Quality Control of 4-Chloro-2-iodoaniline)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).Quality Control of 4-Chloro-2-iodoaniline

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

In 2022,Koley, Suvajit; Cayton, Kaylee T.; Gonzalez-Montiel, Gisela A.; Yadav, M. Ramu; Orsi, Douglas L.; Intelli, Andrew J.; Cheong, Paul Ha-Yeon; Altman, Ryan A. published an article in Journal of Organic Chemistry. The title of the article was 《Cu(II)-Catalyzed Unsymmetrical Dioxidation of gem-Difluoroalkenes to Generate α,α-Difluorinated-α-phenoxyketones》.Safety of 3-Iodophenol The author mentioned the following in the article:

A Cu-based catalyst system convergently couples gem-difluoroalkenes with phenols under aerobic conditions to deliver α,α-difluorinated-α-phenoxyketones, an unstudied hybrid fluorinated functional group. Composed of α,α-difluorinated ketone and α,α-difluorinated ether moieties, these compounds have rarely been reported as a synthetic intermediate. Computational predictions and later exptl. corroboration suggest that the phenoxy-substituted fluorinated ketone’s sp3-hybridized hydrate form is energetically favored relative to the resp. nonether variant and that perturbation of the electronic character of the ketone can further encourage the formation of the hydrate. The more facile conversion between ketone and hydrate forms suggests that analogs should readily covalently inhibit proteases and other enzymes. Further functionalization of the ketone group enables access to other useful fluorinated functional groups.3-Iodophenol(cas: 626-02-8Safety of 3-Iodophenol) was used in this study.

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. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Safety of 3-Iodophenol

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