Month: October 2022

Greiner, Luca C.; Inuki, Shinsuke; Arichi, Norihito; Oishi, Shinya; Suzuki, Rikito; Iwai, Tomohiro; Sawamura, Masaya; Hashmi, A. Stephen K.; Ohno, Hiroaki published their research in Chemistry – A European Journal in 2021. The article was titled 《Access to Indole-Fused Benzannulated Medium-Sized Rings through a Gold(I)-Catalyzed Cascade Cyclization of Azido-Alkynes》.Category: iodides-buliding-blocks The article contains the following contents:

Because benzannulated and indole-fused medium-sized rings are found in many bioactive compounds, combining these fragments might lead to unexplored areas of biol. relevant and uncovered chem. space. Herein is shown that α-imino gold carbene chem. can play an important role in solving the difficulty in the formation of medium-sized rings. Namely, phenylene-tethered azido-alkynes undergo arylative cyclization through the formation of a gold carbene intermediate to afford benzannulated indole-fused medium-sized tetracycles. The reactions allow a range of different aryl substitution patterns and efficient access to these otherwise difficult-to-obtain medium-sized rings. This study also demonstrates the feasibility of the semihollow-shaped C-dtbm ligand for the construction of a nine-membered ring. In addition to this study using 4-Chloro-2-iodoaniline, there are many other studies that have used 4-Chloro-2-iodoaniline(cas: 63069-48-7Category: iodides-buliding-blocks) was used in this study.

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Category: iodides-buliding-blocks

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

Khandelia, Tamanna; Ghosh, Subhendu; Panigrahi, Pritishree; Shome, Rajib; Ghosh, Siddhartha Sankar; Patel, Bhisma K. published their research in Journal of Organic Chemistry in 2021. The article was titled 《Copper(I)-Mediated Cascade Annulation via Dual C-H/C-H Activation: Access to Benzo[a]carbazolic AEEgens》.SDS of cas: 63069-48-7 The article contains the following contents:

A Cu(I)-mediated cascade cyclization/annulation of unprotected o-alkynylanilines 2-RNH-R1C6H3CCC6H4R2 (R = H, Me; R1 = H, 4-CF3, 4-Me, 5-Cl, etc.; R2 = H, 4-tert-Bu, 3-fluoro, 4-Me, etc.), 2-[2-(thiophen-2-yl)ethynyl]aniline with maleimides I (R3 = H, Et, benzyl, cyclohexyl, etc.) in one pot is developed. The protocol offers sequential formation of one C-N and two C-C bonds to deliver fused benzo[a]carbazoles II (R4 = H, 11-CF3, 11-Me, 10-Cl, etc.; R5 = H, 5-tert-Bu, 6-fluoro, 5-Me, etc.), 5-ethylpyrrolo[3,4-c]thieno[2,3-a]carbazole-4,6(5H,11H)-dione having free NH skeletons. The annulated products display fluorescence emission in the range of 485-502 nm with a large Stokes shift and fluorescence lifetime of ~17 ns. The annulated II (R = R4 = R5 = H, R3 = Et) displays AEE behavior in the ethanol/hexane system and possesses marigold-flower-like morphol. at the aggregated state. Cell viability assays enumerate biocompatible AEEgens, while their high intracellular fluorescence depicts cell imaging applicability. The experimental part of the paper was very detailed, including the reaction process of 4-Chloro-2-iodoaniline(cas: 63069-48-7SDS of cas: 63069-48-7)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.SDS of cas: 63069-48-7

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

Lee, Jian Haur; Lin, Hung-Yi; Chen, Chia-Hsun; Lee, Yi-Ting; Chiu, Tien-Lung; Lee, Jiun-Haw; Chen, Chin-Ti; Adachi, Chihaya published their research in ACS Applied Materials & Interfaces in 2021. The article was titled 《Deep Blue Fluorescent Material with an Extremely High Ratio of Horizontal Orientation to Enhance Light Outcoupling Efficiency (44%) and External Quantum Efficiency in Doped and Non-Doped Organic Light-Emitting Diodes》.SDS of cas: 589-87-7 The article contains the following contents:

A novel bis-4Ph-substituted 9,10-dipehnylanthracene deep blue [1931 CIE (0.15, 0.08)] fluorescent compound, AnB4Ph, has been synthesized and characterized for organic light-emitting diode (OLED) applications. Our exptl. study of AnB4Ph excludes the possibility of triplet-triplet annihilation, hybridized local and charge transfer, or thermally activated delayed fluorescent characteristics of the material. Since the solid-state photoluminescence quantum yield of AnB4Ph was determined to be 48%, assuming a 100% for the charge recombination efficiency, the light outcoupling efficiency (ηout) of an AnB4Ph non-doped OLED achieving an external quantum efficiency (EQE) of 5.3% is at least 44%, which is more than twofold higher than 20% for conventional OLEDs. Both grazing incidence wide-angle X-ray scattering (GIWAXS) and angle-dependent photoluminescence (ADPL) measurements reveal AnB4Ph having a high value of order parameter (SGIWAXS) of 0.61 for a ππ stacking along the normal direction and an orientation order parameter (SADPL) for a horizontal emitting dipole moment of -0.50 or Θ (horizontal-dipole ratios) of 100%, resp. Otherwise, a refractive index (n) measurement provides a n = 1.80 for AnB4Ph thin films. Based on ηout = 1.2 x n-2, the calculated ηout is 37%, which is also in accordance with the results of GIWAXS and ADPL. We have also fabricated the classical fluorescent DPAVBi-doped AnB4Ph OLEDs, which display a true blue [1931 CIE (0.15 and 0.16)] electroluminescence with a high efficiency (EQE = 6.9%), surpassing the conventional ~5% EQE. Based on an ηout of 42% for DPAVBi-doped AnB4Ph OLEDs, our studies suggest that the extremely horizontally aligned AnB4Ph host material exerts the same horizontal alignment on the DPAVBi dopant mols. In addition to this study using 1-Bromo-4-iodobenzene, there are many other studies that have used 1-Bromo-4-iodobenzene(cas: 589-87-7SDS of cas: 589-87-7) was used in this study.

1-Bromo-4-iodobenzene(cas: 589-87-7) has been employed as reagent for in situ desilylation and coupling of silylated alkynes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids), as substrate in copper-free Sonogashira coupling in aqueous acetone in synthesis of β,β,dibromostyrenesSDS of cas: 589-87-7

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

Adenot, Aurelien; Anthore-Dalion, Lucile; Nicolas, Emmanuel; Berthet, Jean-Claude; Thuery, Pierre; Cantat, Thibault published their research in Chemistry – A European Journal in 2021. The article was titled 《A Copper(I)-Catalyzed Sulfonylative Hiyama Cross-Coupling》.Electric Literature of C7H5IO The article contains the following contents:

An air-tolerant Cu-catalyzed sulfonylative Hiyama cross-coupling reaction enabling the formation of diaryl sulfones is described. Starting from aryl silanes, DABSO and aryliodides, the reaction tolerates a large variety of polar functional groups (amines, ketones, esters, aldehydes). Control experiments coupled with DFT calculations shed light on the mechanism, characterized by the formation of a Cu(I)-sulfinate intermediate via fast insertion of a SO2 mol. The results came from multiple reactions, including the reaction of 4-Iodobenzaldehyde(cas: 15164-44-0Electric Literature 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.Electric Literature of C7H5IO

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

Chen, Yi; Chang, Kai-Hsin; Meng, Fan-Yi; Tseng, Sheng-Ming; Chou, Pi-Tai published their research in Angewandte Chemie, International Edition in 2021. The article was titled 《Broadening the Horizon of the Bell-Evans-Polanyi Principle towards Optically Triggered Structure Planarization》.Quality Control of 1-Bromo-4-iodobenzene The article contains the following contents:

Finding a relationship between kinetics and thermodn. may be difficult. However, semi-empirical rules exist to compensate for this shortcoming, among which the Bell-Evans-Polanyi (B-E-P) principle is an example for reactions involving bond breakage and reformation. We expand the B-E-P principle to a new territory by probing photoinduced structure planarization (PISP) of a series of dibenz[b,f]azepine derivatives incorporating bent-to-planar and rotation motion. The latter involves twisting of the partial double bond character, thereby inducing a barrier that is substituent dependent at the para N-Ph position. The transition-state structure and frequency data satisfy and broaden the B-E-P principle to PISP reactions without bond rearrangement. Together with dual emissions during PISP, this makes possible harnessing of the kinetics/thermodn. relationship and hence ratiometric luminescence properties for excited-state structural transformations. In addition to this study using 1-Bromo-4-iodobenzene, there are many other studies that have used 1-Bromo-4-iodobenzene(cas: 589-87-7Quality Control of 1-Bromo-4-iodobenzene) was used in this study.

1-Bromo-4-iodobenzene(cas: 589-87-7) has been employed as reagent for in situ desilylation and coupling of silylated alkynes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids), as substrate in copper-free Sonogashira coupling in aqueous acetone in synthesis of β,β,dibromostyrenesQuality Control of 1-Bromo-4-iodobenzene

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

In 2022,Uppalabat, Thikhamporn; Tapdara, Anyawan; Khaikate, Onnicha; Worakul, Thanapat; Surawatanawong, Panida; Leowanawat, Pawaret; Soorukram, Darunee; Reutrakul, Vichai; Meesin, Jatuporn; Kuhakarn, Chutima published an article in New Journal of Chemistry. The title of the article was 《Synthesis of indolo- and benzothieno[3,2-c]quinolines via POCl3 mediated tandem cyclization of o-alkynylisocyanobenzenes derived from o-alkynyl-N-phenylformamides》.Name: 4-Chloro-2-iodoaniline The author mentioned the following in the article:

A synthesis of indolo[3,2-c]quinolines and benzothieno[3,2-c]quinolines has been developed employing o-alkynyl-N-phenylformamide derivatives as the substrates. The reaction proceeded via a tandem process involving POCl3-assisted intramol. cyclization of the firstly formed o-alkynylisocyanobenzenes, leading to the desired products in moderate to high yields. Furthermore, the reaction is efficient on a gram-scale and the products were structurally modified by amination, Suzuki-Miyaura reaction and Heck cross-coupling. Photophys. properties of several selected indolo[3,2-c]quinolines were studied by UV-Visible and fluorescence spectroscopy and rationalized using time-dependent DFT calculations The experimental process involved the reaction of 4-Chloro-2-iodoaniline(cas: 63069-48-7Name: 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).Name: 4-Chloro-2-iodoaniline

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

In 2022,Fadeev, Alexander A.; Makarov, Anton S.; Ivanova, Olga A.; Uchuskin, Maxim G.; Trushkov, Igor V. published an article in Organic Chemistry Frontiers. The title of the article was 《Extended Corey-Chaykovsky reactions: transformation of 2-hydroxychalcones to benzannulated 2,8-dioxabicyclo[3.2.1]octanes and 2,3-dihydrobenzofurans》.Product Details of 1774-47-6 The author mentioned the following in the article:

The divergent synthesis of benzannulated 2,8-dioxabicyclo[3.2.1]octanes I [R1 = H, 4-NO2, 4-Cl, etc.; R2 = Ph, 4-MeC6H4, 4-FC6H4, etc.] and 2,3-dihydrobenzofurans II [X= H, 4-NO2, 4-Cl, etc.; R1 = Ph, 4-MeC6H4, 4-FC6H4, etc.] using the concept of extended Corey-Chaykovsky reactions was reported. With this concept, 2-hydroxychalcones were treated with the Corey ylide providing highly reactive donor-acceptor cyclopropanes that were introduced in a one pot manner for further transformations. We demonstrated that the nucleophilic three-membered ring opening followed by cyclization under mild reaction conditions afforded the 2,8-dioxabicyclo[3.2.1]octane scaffold. On the other hand, heating the intermediates with a strong Bronsted acid furnished 2-phenacyl-2,3-dihydrobenzofurans. These transformations, resulting in products with crucially different heterocyclic skeletons from the same starting compounds, demonstrate the enormous potential of the extended Corey-Chaykovsky reaction.Trimethylsulfoxonium iodide(cas: 1774-47-6Product Details of 1774-47-6) was used in this study.

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.Product Details of 1774-47-6

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

In 2022,Dethe, Dattatraya H.; Beeralingappa, Nagabhushana C.; Siddiqui, Salman A.; Chavan, Prakash N. published an article in Journal of Organic Chemistry. The title of the article was 《Asymmetric Ru/Cinchonine Dual Catalysis for the One-Pot Synthesis of Optically Active Phthalides from Benzoic Acids and Acrylates》.SDS of cas: 619-58-9 The author mentioned the following in the article:

Herein, asym. Ru/cinchonine dual catalysis that provided straightforward access to enantioselective synthesis of C-3 substituted phthalides, e.g., I via tandem C-H activation/Michael addition was reported. The use of readily accessible and less expensive [RuCl2 (p-cym)]2 and cinchonine catalyst for the one-pot assembly of chiral phthalides greatly overcame the present trend of using highly sophisticated catalysts. The developed method provided access to both enantiomers of a product using pseudo enantiomeric cinchona alkaloids as catalysts streamlining the synthesis of phthalide in both the optically active forms. After reading the article, we found that the author used 4-Iodobenzoic acid(cas: 619-58-9SDS of cas: 619-58-9)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. SDS of cas: 619-58-9 Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.

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

Product Details of 624-73-7In 2019 ,《Reactions of Lithium Acylates α-Carbanions with 1,2-Diiodoethane》 was published in Russian Journal of General Chemistry. The article was written by Zorin, A. V.; Chanysheva, A. R.; Lenkova, A. O.; Zorin, V. V.. The article contains the following contents:

The interaction of lithium acylates α-carbanions (obtained via metalation of acetic, butyric, and isobutyric acids with lithium diisopropylamide) with 1,2-diiodoethane under argon in THF at 20-25°C has proceeded as oxidative cross-coupling of enolate anions to form succinic, 2,3-diethylsuccinic, and 2,2,3,3-tetramethylsuccinic acids with yields 50, 53, and 16%, resp. The products of sequential nucleophilic substitution of iodine atoms with alkyloxycarbonyl species have not been detected. In the experiment, the researchers used many compounds, for example, 1,2-Diiodoethane(cas: 624-73-7Product Details of 624-73-7)

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.Product Details of 624-73-7

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

Recommanded Product: 4-Iodobenzoic acidIn 2019 ,《Sensing Temperature in Vitro and in Cells Using a BODIPY Molecular Probe》 was published in Journal of Physical Chemistry B. The article was written by Ogle, Meredith M.; Smith McWilliams, Ashleigh D.; Ware, Matthew J.; Curley, Steven A.; Corr, Stuart J.; Marti, Angel A.. The article contains the following contents:

Boron dipyrromethene (BODIPY) mol. rotors have shown sensitivity toward viscosity, polarity, and temperature Here, we report a 1,3,5,7-tetramethyl-8-phenyl-BODIPY modified with a polyethylene glycol (PEG) chain, for temperature sensing and live cell imaging. This new PEG-BODIPY dye presents an increase in nonradiative decay as temperature increases, which directly influences its lifetime. This change in lifetime is dependent on changes in both temperature and viscosity at low viscosity values, but is only dependent on temperature at high viscosity values. The dependence of fluorescence lifetime with temperature allows for temperature monitoring in vitro and in cells, with sub degree resolution When in contact with cells, the PEG-BODIPY spontaneously penetrates and stains the cell but not the nucleus. Furthermore, no significant cell toxicity was found even at 100 μM concentration Using fluorescence lifetime imaging microscopy (FLIM), we were able to observe the changes in the lifetime of PEG-BODIPY within the cell at different temperatures The use of FLIM and mol. probes such as PEG-BODIPY can provide important information about cellular temperature and heat dissipation upon medically relevant stimuli, such as radiofrequency ablation and photodynamic therapy. The results came from multiple reactions, including the reaction of 4-Iodobenzoic acid(cas: 619-58-9Recommanded Product: 4-Iodobenzoic acid)

4-Iodobenzoic acid(cas: 619-58-9) 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.Recommanded Product: 4-Iodobenzoic acid

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