Tag: 200-300

Zhang, Minghao; Deng, Wenbo; Sun, Mingjie; Zhou, Liwei; Deng, Guobo; Liang, Yun; Yang, Yuan published their research in Organic Letters in 2021. The article was titled 《α-Bromoacrylic Acids as C1 Insertion Units for Palladium-Catalyzed Decarboxylative Synthesis of Diverse Dibenzofulvenes》.Safety of 4-Chloro-2-iodoaniline The article contains the following contents:

Herein α-bromoacrylic acids had been employed as C1 insertion units to achieve the palladium-catalyzed [4+1] annulation of 2-iodobiphenyls, which provided an efficient platform for the construction of diverse dibenzofulvenes such as I [R1 = H, Me, Ph, etc.; R2 = H, n-Pr, 3-MeC6H4, etc.; R1R2 = (CH2)4, (CH2)6, (CH2)11, etc.; R3 = H; R4 = H, OMe, CHO, etc.; R5 = H, Me, Cl, CF3; R6 = H; R7 = H, Me, F, CF3, Cl; R8 = H, Me, F, Cl; R3R4 = CH=CH-CH=CH; R4R5 = CH=CH-CH=CH; R5R6 = CH=CH-CH=CH]. This protocol enabled the formation of double C(aryl)-C(vinyl) bonds via a C(vinyl)-Br bond cleavage and decarboxylation. It was particularly noteworthy that the method featured a broad substrate scope, and various interesting frameworks, such as bridged ring, fused (hetero)aromatic ring, and divinylbenzene, could be successfully incorporated into the products. The results came from multiple reactions, including the reaction of 4-Chloro-2-iodoaniline(cas: 63069-48-7Safety of 4-Chloro-2-iodoaniline)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Safety of 4-Chloro-2-iodoaniline

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

Jun, Joomyung V.; Raines, Ronald T. published their research in Organic Letters in 2021. The article was titled 《Two-Step Synthesis of α-Aryl-α-diazoamides as Modular Bioreversible Labels》.COA of Formula: C6H5IO The article contains the following contents:

α-Aryl-α-diazoamides were synthesized in two steps under mild conditions. This expeditious route employs Pd-catalyzed C-H arylation of N-succinimidyl 2-diazoacetate to obtain N-succinimidyl 2-aryl-2-diazoacetates, followed by aminolysis. The ensuing diazo compounds can esterify carboxyl groups in aqueous solution, and the ester products are substrates for an esterase. The broad scope of the synthetic route enables the continued development of diazo compounds in chem. biol. After reading the article, we found that the author used 3-Iodophenol(cas: 626-02-8COA of Formula: C6H5IO)

3-Iodophenol(cas: 626-02-8) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.COA of Formula: C6H5IOIodo 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

Novotny, Jan; Jeremias, Lukas; Nimax, Patrick; Komorovsky, Stanislav; Heinmaa, Ivo; Marek, Radek published their research in Inorganic Chemistry in 2021. The article was titled 《Crystal and Substituent Effects on Paramagnetic NMR Shifts in Transition-Metal Complexes》.Related Products of 516-12-1 The article contains the following contents:

NMR spectroscopy of paramagnetic mols. provides detailed information about their mol. and electron-spin structure. The paramagnetic NMR spectrum is a very rich source of information about the hyperfine interaction between the at. nuclei and the unpaired electron d. The Fermi-contact contribution to ligand hyperfine NMR shifts is particularly informative about the nature of the metal-ligand bonding and the structural arrangements of the ligands coordinated to the metal center. In this account, we provide a detailed exptl. and theor. NMR study of compounds of Cr(III) and Cu(II) coordinated with substituted acetylacetonate (acac) ligands in the solid state. For the first time, we report the exptl. observation of extremely paramagnetically deshielded 13C NMR resonances for these compounds in the range of 900-1200 ppm. We demonstrate an excellent agreement between the exptl. NMR shifts and those calculated using relativistic d.-functional theory. Crystal packing is shown to significantly influence the NMR shifts in the solid state, as demonstrated by theor. calculations of various supramol. clusters. The resonances are assigned to individual atoms in octahedral Cr(acac)3 and square-planar Cu(acac)2 compounds and interpreted by different electron configurations and magnetizations at the central metal atoms resulting in different spin delocalizations and polarizations of the ligand atoms. Further, effects of substituents on the 13C NMR resonance of the ipso carbon atom reaching almost 700 ppm for Cr(acac)3 compounds are interpreted based on the anal. of Fermi-contact hyperfine contributions. The results came from multiple reactions, including the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Related Products of 516-12-1)

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. Related Products of 516-12-1

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

《NiH-catalyzed asymmetric hydroarylation of N-acyl enamines to chiral benzylamines》 was written by He, Yuli; Song, Huayue; Chen, Jian; Zhu, Shaolin. Application of 15164-44-0 And the article was included in Nature Communications in 2021. The article conveys some information:

NiH-catalyzed enantio- and regioselective reductive hydroarylation of N-acyl enamines, allowed for the practical access to a broad range of structurally diverse, enantioenriched benzylamines under mild, operationally simple reaction conditions was reported.4-Iodobenzaldehyde(cas: 15164-44-0Application of 15164-44-0) 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.Application of 15164-44-0

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

《Silver-Catalyzed Cascade Cyclization Reaction of Isocyanides with Sulfoxonium Ylides: Synthesis of 3-Aminofurans and 4-Aminoquinolines》 was written by Liang, Yong-Xin; Yang, Ming; He, Bo-Wen; Zhao, Yu-Long. SDS of cas: 1774-47-6 And the article was included in Organic Letters in 2020. The article conveys some information:

A silver-catalyzed cascade cyclization reaction of isocyanides with sulfoxonium ylides has been developed for the first time. This reaction provides a new and efficient method for the construction of highly functionalized 3-aminofurans and 4-aminoquinolines from readily available starting materials in a single step. In the experiment, the researchers used many compounds, for example, Trimethylsulfoxonium iodide(cas: 1774-47-6SDS of cas: 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.SDS of cas: 1774-47-6

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

《One-Pot Synthesis of γ-Azidobutyronitriles and Their Intramolecular Cycloadditions》 was published in Synthesis in 2020. These research results belong to Ivanov, Konstantin L.; Tukhtaev, Hamidulla B.; Tukhtaeva, Feruza O.; Bezzubov, Stanislav I.; Melnikov, Mikhail Ya.; Budynina, Ekaterina M.. COA of Formula: C3H9IOS The article mentions the following:

Efficient gram-scale, one-pot approached to azidocyanobutyrates and their amidated or decarboxylated derivatives was developed, starting from com. available aldehydes and cyanoacetates. These techniques combine (1) Knoevenagel condensation, (2) Corey-Chaykovsky cyclopropanation and (3) nucleophilic ring opening of donor-acceptor cyclopropanes with the azide ion, as well as (4) Krapcho decarboxylation or (4′) amidation. The synthetic utility of the resulting γ-azidonitriles was demonstrated by their transformation into tetrazoles via intramol. (3+2)-cycloaddition A condition-dependent activation effect of the α-substituent was revealed in that case. Thermally activated azide-nitrile interaction did not differentiate the presence of an α-electron-withdrawing substituent in γ-azidonitriles, whereas the Lewis acid mediated (SnCl4or TiCl4) reaction proceeded much easier for azidocyanobutyrates. This allowed us to develop an efficient procedure for converting azidocyanobutyrates into the corresponding tetrazoles. 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) 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.COA of Formula: C3H9IOS

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

The author of 《A broadband and strong visible-light-absorbing photosensitizer boosts hydrogen evolution》 were Wang, Ping; Guo, Song; Wang, Hong-Juan; Chen, Kai-Kai; Zhang, Nan; Zhang, Zhi-Ming; Lu, Tong-Bu. And the article was published in Nature Communications in 2019. Synthetic Route of C4H4INO2 The author mentioned the following in the article:

Developing broadband and strong visible-light-absorbing photosensitizer is highly desired for dramatically improving the utilization of solar energy and boosting artificial photosynthesis. Herein, we develop a facile strategy to co-sensitize Ir-complex with Coumarins and boron dipyrromethene to explore photosensitizer with a broadband covering ca. 50% visible light region (Ir-4). This type of photosensitizer is firstly introduced into water splitting system, exhibiting significantly enhanced performance with over 21 times higher than that of typical Ir(ppy)2(bpy)+, and the turnover number towards Ir-4 reaches to 115840, representing the most active sensitizer among reported mol. photocatalytic systems. Exptl. and theor. investigations reveal that the Ir-mediation not only achieves a long-lived boron dipyrromethene-localized triplet state, but also makes an efficient excitation energy transfer from Coumarin to boron dipyrromethene to trigger the electron transfer. These findings provide an insight for developing broadband and strong visible-light-absorbing multicomponent arrays on mol. level for efficient artificial photosynthesis. In the part of experimental materials, we found many familiar compounds, such as 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Synthetic Route 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. Synthetic Route of C4H4INO2

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

The author of 《Pd Nanoparticle Fabricated Tetrahydroharman-3-carboxylic Acid Analog Immobilized CoFe2O4 Catalyzed Fast and Expedient C-C Cross and C-S Coupling》 were Tamoradi, Taibeh; Veisi, Hojat; Karmakar, Bikash. And the article was published in ChemistrySelect in 2019. HPLC of Formula: 624-31-7 The author mentioned the following in the article:

A novel Pd nanoparticles anchored tryptophan analog ligand immobilized magnetic CoFe2O4 nanocomposite material was synthesized by post-functionalization approach. The material was thoroughly characterized using several advanced anal. techniques. Thereafter, the catalytic application was carried out in the C-C bond formation reactions via Suzuki and Stille cross coupling. Biphenyl derivatives were prepared in both the reactions with high efficiency and short reaction time. The exploration was further continued in the synthesis of aromatic thioethers by C-S coupling using mol. sulfur and haloarenes. The clean ligand-free protocol, devoid of hazardous chems., excellent yields in short reaction time and the reusability of catalyst for several times were the key factors in the methodol.1-Iodo-4-methylbenzene(cas: 624-31-7HPLC of Formula: 624-31-7) 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.HPLC of Formula: 624-31-7

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

The author of 《Electrodeposition of Ni-Co-Fe mixed sulfide ultrathin nanosheets on Ni nanocones: a low-cost, durable and high performance catalyst for electrochemical water splitting》 were Barati Darband, Ghasem; Aliofkhazraei, Mahmood; Hyun, Suyeon; Sabour Rouhaghdam, Alireza; Shanmugam, Sangaraju. And the article was published in Nanoscale in 2019. Electric Literature of C4H4INO2 The author mentioned the following in the article:

The development of a bi-functional active and stable catalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is an important challenge in overall electrochem. water splitting. In this study, firstly, nickel nanocones (NNCs) were formed using electrochem. deposition, and then Ni-Co-Fe based mixed sulfide ultrathin nanosheets were obtained by directly depositing on the surface of the nanocones using the CV method. With a hierarchical structure of Ni-Fe-Co-S nanosheets, not only was a high active surface area created, but also the electron transfer and mass transfer were enhanced. This structure also led to the faster release of hydrogen bubbles from the surface. An overpotential value of 106 mV was required on the surface of this electrode to generate a c.d. of 10 mA cm-2 in the HER, whereas, for the OER, 207 mV overpotential was needed to generate a c.d. of 10 mA cm-2. Furthermore, this electrode required 1.54 V potential to generate a c.d. of 10 mA cm-2 in the total electrochem. water splitting. The resulting electrode also exhibited reasonable electrocatalytic stability, and after 10 h of electrolysis in the overall water splitting reaction, the voltage change was negligible. This study introduces a simple, efficient, reasonable and cost-effective method of creating an effective catalyst for the overall water splitting process. In the experiment, the researchers used many compounds, for example, 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Electric Literature 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. Electric Literature of C4H4INO2

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

Mcnamee, Ryan E.; Haugland, Marius M.; Nugent, Jeremy; Chan, Rachel; Christensen, Kirsten E.; Anderson, Edward A. published their research in Chemical Science in 2021. The article was titled 《Synthesis of 1,3-disubstituted bicyclo[1.1.0]butanes via directed bridgehead functionalization》.Application In Synthesis of 3-Iodophenol The article contains the following contents:

Bicyclo[1.1.0]butanes (BCBs) are increasingly valued as intermediates in ‘strain release’ chem. for the synthesis of substituted four membered rings and bicyclo[1.1.1]pentanes, with applications including bioconjugation processes. Variation of the BCB bridgehead substituents can be challenging due to the inherent strain of the bicyclic scaffold, often necessitating linear syntheses of specific BCB targets. Here authors report the first palladium catalyzed cross-coupling on pre-formed BCBs which enables a ‘late stage’ diversification of the bridgehead position, and the conversion of the resultant products into a range of useful small ring building blocks. In addition to this study using 3-Iodophenol, there are many other studies that have used 3-Iodophenol(cas: 626-02-8Application In Synthesis 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. Application In Synthesis of 3-Iodophenol 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