Author: Jessica.F

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

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

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

Zhang, Sikun; Liu, Xu; Li, Guoping; Yu, Shi; Yan, Ni; He, Gang published their research in Dyes and Pigments in 2021. The article was titled 《Novel dithienoazaborine viologen derivatives with two different π-conjugated extensions for electrochromic application》.HPLC of Formula: 15854-87-2 The article contains the following contents:

Two kinds of dithienoazaborine viologen derivatives (3a and 3b) with different π-conjugated extensions were synthesized via late-stage functionalization of dithienoazaborine precursor (BNDT). In sharp contrast to 3a (conjugation I), 3b (conjugation II) showed red-shifted absorption (∼468 nm), narrower optical bandgap (2.65 eV), and aggregation-induced emission (AIE) property. Meanwhile, 3b-based electrochromic device (ECD) showed longer switching times (21.6 s for coloration and 34.9 s for bleaching), higher color contrast ratios (21.3%), higher coloration efficiency (13.29 cm2/C), as well as better stability compared with 3a-based ECD. In addition, an electronic information (E-information) tag and a flexible ECD were assembled using 3b, further manifesting its potential applications in display areas. The research not only expands the structural types of viologen derivatives but also compares the effects of different conjugation on the properties of viologen derivatives for the first time, which may provide a feasible way to design new electrochromic materials. In the experimental materials used by the author, we found 4-Iodopyridine(cas: 15854-87-2HPLC of Formula: 15854-87-2)

4-Iodopyridine(cas: 15854-87-2) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. HPLC of Formula: 15854-87-2

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

Zhang, Tianze; Yu, Min; Huang, Hanmin published an article in 2021. The article was titled 《Fe-catalyzed Fukuyama-type indole synthesis triggered by hydrogen atom transfer》, and you may find the article in Chemical Science.Formula: C6H5ClIN The information in the text is summarized as follows:

An efficient Fe-catalyzed intramol. isonitrile-olefin coupling reaction delivering 3-substituted indoles, in which isonitrile was firstly applied as the hydrogen atom acceptor in the radical generation step by MHAT were reported. The protocol features low catalyst loading, mild reaction conditions and excellent functional group tolerance. After reading the article, we found that the author used 4-Chloro-2-iodoaniline(cas: 63069-48-7Formula: C6H5ClIN)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Formula: C6H5ClIN

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

Marchese, Austin D.; Adrianov, Timur; Kollen, Martin F.; Mirabi, Bijan; Lautens, Mark published an article in 2021. The article was titled 《Synthesis of Carbocyclic Compounds via a Nickel-Catalyzed Carboiodination Reaction》, and you may find the article in ACS Catalysis.Computed Properties of C7H5IO2 The information in the text is summarized as follows:

A scalable nickel-catalyzed carboiodination reaction generating 6-membered carbocycles I [R1 = H, 7-Me, 5-F, etc.; R2 = Me, n-Pr, Bn; R3 = CO2Me, CO2Et, CO2t-Bu, CO2Ph; R4 = CO2Me, CO2Et, CO2t-Bu, CO2Ph] was reported. NiI2 and P(OEt)3 as the ligand and reducing agent, provided decorated iodomethyl-tetrahydronaphthalenes I in up to 94% yield. The impact of varying electronic and steric parameters on the reaction were reported and a nonlinear Hammett plot was obtained, supporting a change in rate-determining step from oxidative addition to reductive elimination. Exptl. and DFT studies suggested the malonate group might stabilize a nickel oxidative-addition complex. A variety of heteroatom-containing nucleophiles and medicinally relevant heterocycles were easily incorporated into the products via simple SN2 chem. In addition to this study using 2-Iodobenzoic acid, there are many other studies that have used 2-Iodobenzoic acid(cas: 88-67-5Computed Properties of C7H5IO2) was used in this study.

2-Iodobenzoic acid(cas: 88-67-5) 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. Computed Properties of C7H5IO2 Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.

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

In 2022,He, Yuli; Ma, Jiawei; Song, Huayue; Zhang, Yao; Liang, Yong; Wang, You; Zhu, Shaolin published an article in Nature Communications. The title of the article was 《Regio- and enantioselective remote hydroarylation using a ligand-relay strategy》.Synthetic Route of C7H5IO The author mentioned the following in the article:

The design of a single complicated chiral ligand to well-promote each step of an asym. cascade reaction is sometimes a formidable challenge in transition metal catalysis. In this work, a highly regio- and enantioselective Ni-catalyzed migratory hydroarylation relay process has been achieved with the combination of two simple ligands, one which accomplishes chain-walking and the other causing asym. arylation. This formal asym. C(sp3)-H arylation provides direct access to a wide range of structurally diverse chiral 1,1-diarylalkanes, a structural unit found in a number of bioactive mols. The value of this strategy was further demonstrated by the Ni-catalyzed migratory asym. 1,3-arylboration. In the experiment, the researchers used 4-Iodobenzaldehyde(cas: 15164-44-0Synthetic Route of C7H5IO)

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.Synthetic Route of C7H5IO

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

In 2022,Wang, Chang-Sheng; Tan, Ploypailin Siew Ling; Ding, Wei; Ito, Shingo; Yoshikai, Naohiko published an article in Organic Letters. The title of the article was 《Regio- and Stereoselective Synthesis of Enol Carboxylate, Phosphate, and Sulfonate Esters via Iodo(III)functionalization of Alkynes》.Recommanded Product: 88-67-5 The author mentioned the following in the article:

Synthesis of β-Iodo(III)enol carboxylates, I (R1 = Et, Me, Bu, t-Bu; R2 = Et, Ph, thiophen-2-yl, etc.; R3 = 4-oxopentanoyl, benzoyl, 2,2-dimethylpropyl, etc.) phosphates, I (R3 = diethoxyphosphoroso, diphenoxyphosphoroso, dimethoxyphosphoroso, diphenylphosphoroso) and tosylates I (R3 = Ts) can be efficiently performed through regio- and stereoselective iodo(III)functionalization of alkynes R1CCR2. The combination of 1,2-benziodoxole, 1-chloro-1,3-dihydro-3,3-bis(trifluoromethyl)- and silver salt has proven to generate a versatile cationic iodine(III) electrophile to activate alkynes and engage various carboxylic acids R4COOH (R4 = Me, Ph, 2-phenylethenyl, etc.), tri-Et phosphate and p-toluenesulfonic acid as nucleophiles. The β-iodo(III)enol esters serve as starting materials for the synthesis of multisubstituted alkenes I through sequential cross-coupling of the C-I(III) and C-O bonds. In the experimental materials used by the author, we found 2-Iodobenzoic acid(cas: 88-67-5Recommanded Product: 88-67-5)

2-Iodobenzoic acid(cas: 88-67-5) 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. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine.Recommanded Product: 88-67-5

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

In 2022,Rakshit, Amitava; Dhara, Hirendra Nath; Sahoo, Ashish Kumar; Alam, Tipu; Patel, Bhisma K. published an article in Organic Letters. The title of the article was 《Pd(II)-Catalyzed Synthesis of Furo[2,3-b]pyridines from β-Ketodinitriles and Alkynes via Cyclization and N-H/C Annulation》.Application of 625-99-0 The author mentioned the following in the article:

A Pd(II)-catalyzed synthesis of furopyridines, e.g., I has been developed from β-ketodinitriles, e.g., 2-(1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl)propanedinitrile and alkynes, e.g., diphenylacetylene via an unusual N-H/C annulation. The participation of both the nitrile groups and the concurrent construction of furan and pyridine rings through the formation of C-C, C=C, C-O, C-N, and C=N bonds are the important features. The synthetic applicability is further demonstrated through a series of postsynthetic alterations. The results came from multiple reactions, including the reaction of 1-Chloro-3-iodobenzene(cas: 625-99-0Application of 625-99-0)

1-Chloro-3-iodobenzene(cas: 625-99-0) 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. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Application of 625-99-0

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

In 2022,Yu, Shilin; Ward, Jas S. published an article in Dalton Transactions. The title of the article was 《Ligand exchange among iodine(I) complexes》.Application In Synthesis of 4-Iodopyridine The author mentioned the following in the article:

A detailed investigation of ligand exchange between iodine(I) ions in [N···I···N]+ halogen-bonded complexes is presented. Ligand exchange reactions were conducted to successfully confirm whether iodine(I) complex formation, via the classical [N···Ag···N]+ to [N···I···N]+ cation exchange reaction from their analogous Ag+ complexes, could be determined solely by using 1H NMR spectroscopy. In instances where the formation of the iodine(I) complex was unclear or in low yield by the traditional cation exchange reaction, a ligand exchange reaction was used to form the desired iodine(I) complexes in a quant. manner. Mixing two homoleptic [N···I···N]+ iodine(I) complexes in 1:1 ratio was found to undergo a statistical ligand exchange, with 1H NMR studies showing that the preferred formation of the relative heteroleptic [N1···I···N2]+ complexes increases with greater differences in the Lewis basicities of two XB acceptors of the complexes involved. The experimental part of the paper was very detailed, including the reaction process of 4-Iodopyridine(cas: 15854-87-2Application In Synthesis of 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.Application In Synthesis of 4-Iodopyridine

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