Category: iodides-buliding-blocks

《Pd(II)-Catalyzed Enantioselective γ-C(sp3)-H Functionalizations of Free Cyclopropylmethylamines》 was written by Zhuang, Zhe; Yu, Jin-Quan. Formula: C7H7I And the article was included in Journal of the American Chemical Society in 2020. The article conveys some information:

Herein, the Pd-catalyzed enantioselective C(sp3)-H functionalization of free aliphatic amines (cyclopropylmethylamines) enabled by a chiral bidentate thioether ligand was reported. This ligand’s privileged bidentate coordination mode and thioether motif favor the generation of the requisite mono(amine)-Pd(II) intermediate, thus enabling the enantioselective C-H activation of free amines. The resulting C-Pd(II) species could engage in either Pd(II)/Pd(IV) or Pd(II)/Pd(0) catalytic cycles, enabling access to a diverse range of products I [R1 = n-pentyl, 2,6-di-FC6H3, Bn, etc.; R2 = H, Boc, Bz; Ar = Ph, 4-MeC6H4, 4-pyridyl, etc.], II [R1 = H, Bn; R2 = H, 2,6,-di-FC6H3, 2,6,-di-ClC6H3, 2,6,-di-MeC6H3, (CH2)3C6H5] and III [R1 = H, CH2CH2CH(Me)2; R2 = Boc, 2,6,-di-FC6H3, 2,6,-di-ClC6H3, 2,6,-di-MeC6H3] through (hetero)arylation, carbonylation and olefination reactions. Consequently, this versatile reactivity offered medicinal chemists a general strategy to rapidly prepare and functionalize biol. relevant amines. In the experiment, the researchers used 1-Iodo-4-methylbenzene(cas: 624-31-7Formula: C7H7I)

1-Iodo-4-methylbenzene(cas: 624-31-7) undergoes Suzuki-Miyaura coupling reaction with phenylboronic acid catalyzed by (Ni,Mg)3Si2O5(OH)4 solid-solution nanotubes loaded with palladium.Formula: C7H7I

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

《Highly Emissive Perylene Diimide-Based Metallacages and Their Host-Guest Chemistry for Information Encryption》 was written by Hou, Yali; Zhang, Zeyuan; Lu, Shuai; Yuan, Jun; Zhu, Qiangyu; Chen, Wei-Peng; Ling, Sanliang; Li, Xiaopeng; Zheng, Yan-Zhen; Zhu, Kelong; Zhang, Mingming. Computed Properties of C5H4IN And the article was included in Journal of the American Chemical Society in 2020. The article conveys some information:

Here we report two highly emissive perylene diimide (PDI)-based metallacages and explore their complexation with polycyclic aromatic hydrocarbons, such as pyrene, triphenylene, and perylene. The fluorescence quantum yields of metallacages exceed 90% and their binding constants with perylene can reach as high as 2.41 x 104 M-1 in acetonitrile. These features enable further tuning of the emission of the host-guest complexes to obtain white-light emission based on the complementary orange emission of the metallacages and the blue emission of perylene. Moreover, owing to the huge differences of their quantum yields in solution and in the solid state, the host-guest complexes are successfully employed for information encryption. This study offers a general approach for the construction of emissive metallacages and explores their application for information encryption. In the part of experimental materials, we found many familiar compounds, such as 4-Iodopyridine(cas: 15854-87-2Computed Properties of C5H4IN)

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. Computed Properties of C5H4IN

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

《Bacterially-assisted recovery of cadmium and nickel as their metal sulfide nanoparticles from spent Ni-Cd battery via hydrometallurgical route》 was published in Journal of Environmental Management in 2020. These research results belong to Paul, Siddhartha; Shakya, Arvind Kumar; Ghosh, Pranab Kumar. Synthetic Route of C4H4INO2 The article mentions the following:

A review. Soaring demand for technol. metals (e.g., Cd, Ni) and its ever-depleting primary resources ask for alternative recovery from secondary sources. Ni-Cd battery is one such source that can abridge the gap between demand and supply of such metals. Biogenic recovery, being environmentally benign, is explored for Cd and Ni recovery to manage the menace of spent Ni-Cd battery. Studies with 20, 40 and 60 mg/L Cd2+ initial concentrations in batch mode (in triplicates) at pH 7.0 ± 0.2, 30 ± 0.5°C and 120 rpm were conducted using sulfate-reducing bacteria for 10 days. Anal. of extracellular polymeric substance revealed that protein secretion was enhanced, thereby forming Cd-EPS binding. Biosolids were collected and freeze-dried for morphol. anal. viz. FESEM/EDX, PXRD and TEM, which revealed the formation of CdS nanoparticles (JCPDS card #00-042-1411) in range of 2-6 nm. Similarly, combined effect with 5, 10 and 20 mg/L Ni2+ at 20 mg/L Cd2+ were also investigated. Furthermore, to test the efficacy for real field application, spent Ni-Cd battery was dismantled and its powder was characterized, digested with concentrated HCl at 70°C and was fed in batch mode after cooling, wherein nanoparticles of Ni and Cd sulfides were formed that has potential as semi-conducting material. In addition to this study using 1-Iodopyrrolidine-2,5-dione, there are many other studies that have used 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Synthetic Route 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. Synthetic Route of C4H4INO2

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

《Descriptor ΔGC-O Enables the Quantitative Design of Spontaneously Blinking Rhodamines for Live-Cell Super-Resolution Imaging》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Chi, Weijie; Qiao, Qinglong; Wang, Chao; Zheng, Jiazhu; Zhou, Wei; Xu, Ning; Wu, Xia; Jiang, Xiao; Tan, Davin; Xu, Zhaochao; Liu, Xiaogang. Related Products of 591-18-4 The article mentions the following:

Herein, we reported a simple, fast, and quant. theor. descriptor ΔGC-O that allows accurate predictions of a wide range of spontaneously blinking rhodamines. ΔGC-O denotes the Gibbs free energy differences between the closed and open forms of rhodamines and has a good linear relationship with exptl. pKcycl values. This correlation affords an effective guide for the quant. designs of spontaneously blinking rhodamines and eliminates trial-and-error. We have validated the predictive power of ΔGC-O via the development of two spontaneously blinking rhodamines of different colors and enhanced brightness. We also demonstrated their super-resolution imaging utilities in dynamic live-cell imaging. We expect that ΔGC-O will greatly facilitate the efficient creations of spontaneously blinking fluorophores and aid the advancements of super-resolution bioimaging techniques. In the part of experimental materials, we found many familiar compounds, such as 1-Bromo-3-iodobenzene(cas: 591-18-4Related Products of 591-18-4)

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.Related Products of 591-18-4 Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

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

《Donor-Acceptor Bicyclopropyls as 1,6-Zwitterionic Intermediates: Synthesis and Reactions with 4-Phenyl-1,2,4-triazoline-3,5-dione and Terminal Acetylenes》 was published in Journal of Organic Chemistry in 2020. These research results belong to Potapov, Konstantin V.; Denisov, Dmitry A.; Glushkova, Valeriia V.; Novikov, Roman A.; Tomilov, Yury V.. Recommanded Product: 1774-47-6 The article mentions the following:

The bicyclopropyl system activated by incorporation of donor and acceptor groups in the presence of Lewis acids was used as a synthetic equivalent of 1,6-zwitterions. Opening of both cyclopropane rings in 2′-aryl-1,1′-bicyclopropyl-2,2-dicarboxylates (D-A bicyclopropyl, ABCDs) in the presence of GaI3 + Bu4N+GaI4- results in 5-iodo-5-arylpent-2-enylmalonates as products of HI formal 1,6-addition to the bicyclopropyl system. The use of GaCl3 or GaBr3 as a Lewis acid and terminal aryl or alkyl acetylenes as 1,6-zwitterion interceptors allows the alkyl substituent to be grown to give the corresponding acyclic 7-chloro(bromo)-hepta-2,6-dienylmalonates. The reaction of ABCDs with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) catalyzed by Yb(OTf)3 also results in the opening of both cyclopropane rings. The reaction products are tetrahydropyridazine derivatives – (7,9-dioxo-1,6,8-triazabicyclo[4.3.0]non-3-en-2-ylmethyl)malonates – containing one more PTAD moiety in the malonyl group. After reading the article, we found that the author used Trimethylsulfoxonium iodide(cas: 1774-47-6Recommanded Product: 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. Further, it reacts with alfa,beta-unsaturated esters to get cyclopropyl esters.Recommanded Product: 1774-47-6

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

《Catalytic Access to Functionalized Allylic gem-Difluorides via Fluorinative Meyer-Schuster-Like Rearrangement》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Liao, Lihao; An, Rui; Li, Huimin; Xu, Yang; Wu, Jin-Ji; Zhao, Xiaodan. Reference of 3-Iodophenol The article mentions the following:

An unprecedented approach for efficient synthesis of functionalized allylic gem-difluorides via catalytic fluorinative Meyer-Schuster-like rearrangement is disclosed. This transformation proceeded with readily accessible propargylic fluorides, and low-cost B-F reagents and electrophilic reagents by sulfide catalysis [e.g., I → II (88%) in presence of PhSPh as Lewis basic catalyst, tetrafluoroboric acid di-Et ether complex and NIS]. A series of iodinated, brominated, and trifluoromethylthiolated allylic gem-difluorides that were difficult to access by other methods were facilely produced with a wide range of functional groups. Importantly, the obtained iodinated products could be incorporated into different drugs and natural products, and could be expediently converted into many other valuable gem-difluoroalkyl mols. as well. Mechanistic studies revealed that this reaction went through a regioselective fluorination of alkynes followed by a formal 1,3-fluorine migration under the assistance of the B-F reagents to give the desired products. The results came from multiple reactions, including the reaction of 3-Iodophenol(cas: 626-02-8Reference of 3-Iodophenol)

3-Iodophenol(cas: 626-02-8) belongs to 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.Reference of 3-Iodophenol

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

The author of 《Synthesis, characterization and catalytic activity of ionic liquid mimic halides modified MCM-41 for solvent free synthesis of phenyl glycidyl carbonate》 were Ramalingam, R. Jothi; Appaturi, Jimmy Nelson; Pulingam, Thiruchelvi; Ibrahim S, Noora; Al-Lohedan, Hamad A.. And the article was published in Materials Chemistry and Physics in 2019. Application of 624-73-7 The author mentioned the following in the article:

The different type of halide modified mesoporous silica catalysts were prepared via post-grafting technique using meso-silica derived from rich husk by simple sol-gel method. The physico chem. characterizations of as prepared catalysts were characterized using FT-IR, N2-sorption-desorption study, 13C CP/MAS NMR and SEM techniques. FT-IR and 13C CP/MAS NMR revealed the effective anchorage of imidazole and 1,2-dihaloethane on the MCM-41. SEM anal. images shows the comprise worm-like agglomerated structure which was similar to MCM-41. The catalysts were then used in cycloaddition of carbon dioxide and Ph glycidyl ether under solvent free or less conditions. Among the prepared catalyst, Br-immobilized MCM-41 shows higher catalytic activity (96.7%) under ambient reaction by adopting following conditions such as 100°C, 20 bar initial CO2 pressure, 300 mg catalyst mass and 3 h. The conversion of Ph glycidyl ether using ImI-MCM-41 and ImCl-MCM-41 are 77.3% and 26.4% resp. The catalytic results are confirmed that the synergistic effect owing to the stronger nucleophilicity of bromide- and amine could be promoted the reaction smoothly. The catalyst was recovered and reused for four times without a significant decrease in activity or product selectivity. A possible site for CO2 activation by ImBr-MCM-41 catalyst could be the potential ionic liquid mimic’s halide immobilized MCM-41 like material for efficient conversion of the substrates such as Ph glycidyl ether and Epoxy hexane for cycloaddition reactions have been demonstrated.1,2-Diiodoethane(cas: 624-73-7Application of 624-73-7) was used in this study.

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.Application of 624-73-7

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

The author of 《Chemically and Mechanically Controlled Single-Molecule Switches Using Spiropyrans》 were Walkey, Mark C.; Peiris, Chandramalika R.; Ciampi, Simone; C. Aragones, Albert; Dominguez-Espindola, Ruth B.; Jago, David; Pulbrook, Thea; Skelton, Brian W.; Sobolev, Alexandre N.; Diez Perez, Ismael; Piggott, Matthew J.; Koutsantonis, George A.; Darwish, Nadim. And the article was published in ACS Applied Materials & Interfaces in 2019. Electric Literature of C5H4IN The author mentioned the following in the article:

Developing mol. circuits that can function as the active components in elec. devices is an ongoing challenge in mol. electronics. It demands mech. stability of the single-mol. circuit while simultaneously being responsive to external stimuli mimicking the operation of conventional electronic components. Here, we report single-mol. circuits based on spiropyran derivatives that respond elec. to chem. and mech. stimuli. The merocyanine that results from the protonation/ring-opening of the spiropyran form showed single-mol. diode characteristics, with an average current rectification ratio of 5 at ±1 V, favoring the orientation where the pos. charged end of the mol. is attached to the neg. terminal of the circuit. Mech. pulling of a single spiropyran mol. drives a switch to a more conducting merocyanine state. The mech. switching is enabled by the strong Au-C covalent bonding between the mol. and the electrodes, which allows the tensile force delivered by the STM piezo to break the mol. at its spiropyran C-O bond. In addition to this study using 4-Iodopyridine, there are many other studies that have used 4-Iodopyridine(cas: 15854-87-2Electric Literature of C5H4IN) was used in this study.

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.Electric Literature of C5H4IN

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

In 2019,Journal of Organic Chemistry included an article by Varshnaya, Rohit Kumar; Banerjee, Prabal. Computed Properties of C3H9IOS. The article was titled 《Lewis Acid-Catalyzed [3+3] Annulation of Donor-Acceptor Cyclopropanes and Indonyl Alcohols: One Step Synthesis of Substituted Carbazoles with Promising Photophysical Properties》. The information in the text is summarized as follows:

A highly efficient protocol to access carbazole from donor-acceptor cyclopropane and indonyl alc. via [3+3] annulation in the presence of a Lewis acid has been demonstrated. This method facilitates the post functionalization of the substituted carbazole into a fully conjugated π-system exhibiting intense emission bands in the visible range of the spectrum and also offers a convenient route toward the synthesis of pityriazole derivatives The experimental part of the paper was very detailed, including the reaction process of Trimethylsulfoxonium iodide(cas: 1774-47-6Computed Properties of 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.Computed Properties of C3H9IOS

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

In 2019,Beilstein Journal of Organic Chemistry included an article by Frei, Sibylle; Katolik, Adam K.; Leumann, Christian J.. Formula: C4H4INO2. The article was titled 《Synthesis, biophysical properties, and RNase H activity of 6′-difluoro[4.3.0]bicyclo-DNA》. The information in the text is summarized as follows:

Here we present the synthesis, the biophys. properties, and the RNase H profile of 6′-difluorinated [4.3.0]bicyclo-DNA (6′-diF-bc4,3-DNA). The difluorinated thymidine phosphoramidite building block was synthesized starting from an already known gem-difluorinated tricyclic glycal. This tricyclic siloxydifluorocyclopropane was converted into the [4.3.0]bicyclic nucleoside via cyclopropane ring-opening through the addition of an electrophilic iodine during the nucleosidation step followed by reduction The gem-difluorinated bicyclic nucleoside was then converted into the corresponding phosphoramidite building block which was incorporated into oligonucleotides. Thermal denaturation experiments of these oligonucleotides hybridized to complementary DNA or RNA disclosed a significant destabilization of both duplex types (Tm/mod = -1.6 to -5.5°C). However, in the DNA/RNA hybrid the amount of destabilization could be reduced by multiple insertions of the modified unit. In addition, CD spectroscopy of the oligonucleotides hybridized to RNA showed a similar structure than the natural DNA/RNA duplex. Furthermore, since the structural investigation on the nucleoside level by X-ray crystallog. and ab initio calculations pointed to a furanose conformation in the southern region, a RNase H cleavage assay was conducted. This experiment revealed that the oligonucleotide containing five modified units was able to elicit the RNase H-mediated cleavage of the complementary RNA strand. The experimental part of the paper was very detailed, including the reaction process of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Formula: 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. Formula: C4H4INO2

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