Month: October 2022

The author of 《meso-Bis(ethynyl) Versus meso-Bis(aryl) Calix[4]pyrroles: Dimensionally Well-Modulated Receptors That Can Regulate the Anion Binding Domains》 were Dutta, Ranjan; Samala, Srinivas; Jo, Hongil; Ok, Kang Min; Lee, Chang-Hee. And the article was published in Journal of Organic Chemistry in 2019. COA of Formula: C5H4IN The author mentioned the following in the article:

Meso-Substituted calix[4]pyrroles 2-6 containing a direct meso-ethynyl linker displayed high binding affinities and unique conformational features on halide anion binding. A general conformational bias for the equatorial alignments of the meso-(aryl)ethynyl groups was observed in the host-halide complexes which was attributed to the repulsive anion-alkyne interactions and released steric strain. Such conformational features of host-halide complexes persisted even in the case of calix[4]pyrrole 6 bearing cationic meso components, which displayed the highest binding affinity for chloride anions among known meso-aryl calix[4]pyrroles. Synthetic details, conformational features, and comparative halide anion binding properties of this series of calix[4]pyrroles are described. In the part of experimental materials, we found many familiar compounds, such as 4-Iodopyridine(cas: 15854-87-2COA of Formula: C5H4IN)

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.COA of Formula: C5H4IN

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

The author of 《Metallic salt-catalyzed direct indium insertion into alkyl iodides and their applications in cross-coupling reactions》 were Chen, Bing-Zhi; Wang, Chuang-Xin; Jing, Zhen-Hua; Chu, Xue-Qiang; Loh, Teck-Peng; Shen, Zhi-Liang. And the article was published in Organic Chemistry Frontiers in 2019. Name: 4-Iodobenzaldehyde The author mentioned the following in the article:

An efficient method for the synthesis of alkyl indium reagents by an indium(III) or lead(II) halide-catalyzed direct insertion of indium into alkyl iodides and their applications in palladium-catalyzed cross-coupling reactions with aryl halides is developed. NMR and ESI-MS analyses indicated that rather than the formation of the commonly recognized alkyl indium sesquihalide with the formulation of R3In2X3, the formed alkyl indium reagent in the present protocol should be a mixture of an alkyl indium dihalide (RInX2) and a dialkyl indium halide (R2InX) (both of them presumably exist as dimers). The results came from multiple reactions, including the reaction of 4-Iodobenzaldehyde(cas: 15164-44-0Name: 4-Iodobenzaldehyde)

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.Name: 4-Iodobenzaldehyde

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

The author of 《Efficient Deep-Blue Fluorescent OLEDs with a High Exciton Utilization Efficiency from a Fully Twisted Phenanthroimidazole-Anthracene Emitter》 were Xu, Yuwei; Liang, Xiaoming; Liang, Yiqian; Guo, Xiaomin; Hanif, Muddasir; Zhou, Jiadong; Zhou, Xuehong; Wang, Cong; Yao, Jingwen; Zhao, Ruiyang; Hu, Dehua; Qiao, Xianfeng; Ma, Dongge; Ma, Yuguang. And the article was published in ACS Applied Materials & Interfaces in 2019. Formula: C6H4BrI The author mentioned the following in the article:

A novel, efficient, deep-blue fluorescent emitter mPAC, with a meta-connected donor-acceptor structure containing phenanthroimidazole (PPI) as the donor and phenylcarbazole-substituted anthracene (An-CzP) as the acceptor, was designed and synthesized. The meta-linkage provided a highly twisted mol. conformation, which efficiently interrupts the intramol. π-conjugation, resulting in a deep-blue emission. The optimized nondoped device based on mPAC displayed a deep-blue emission with a narrow full width at half-maximum of 56 nm and Commission Internationale de L’Eclairage coordinates of (0.16, 0.09). The maximum external quantum efficiency (EQEmax) is 6.76%, corresponding to a high exciton utilization efficiency (EUE) of 59.3-88.9%. Exptl. results and theor. anal. indicated that the high EUE is mainly ascribed to the reverse intersystem crossing (RISC) from T2 to S1, a “”hot exciton”” path in which the large T2-T1 energy gap (1.45 eV) and small T2-S1 energy difference (0.18 eV, T2 > S1) hamper the internal crossing from T2 to T1 and facilitate the RISC process. For the hot exciton path, the T2 state can be feasibly arranged to a high energy level, forming a thermal equilibrium with S1, even slightly higher than the deep-blue S1 to realize an exergonic RISC process, which is usually difficult for the thermally activated delayed fluorescence emitters. After reading the article, we found that the author used 1-Bromo-3-iodobenzene(cas: 591-18-4Formula: C6H4BrI)

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.Formula: C6H4BrI

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

The author of 《NIS-mediated oxidative arene C(sp2)-H amidation toward 3,4-dihydro-2(1H)-quinolinone, phenanthridone, and N-fused spirolactam derivatives》 were Wu, Lingang; Hao, Yanan; Liu, Yuxiu; Wang, Qingmin. And the article was published in Organic & Biomolecular Chemistry in 2019. Safety of 1-Iodopyrrolidine-2,5-dione The author mentioned the following in the article:

A new radical-mediated intramol. arene C(sp2)-H amidation of 3-phenylpropanamides or [1,1′-biphenyl]-2-carboxamides was developed to prepare a series of 3,4-dihydro-2(1H)-quinolinone and phenanthridone derivatives in moderate to excellent yields (33-94%). Spirolactams were also obtained using this protocol. The experimental process involved the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Safety of 1-Iodopyrrolidine-2,5-dione)

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. Safety of 1-Iodopyrrolidine-2,5-dione

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

《Palladium-catalyzed three-component carbonylative synthesis of 2-(trifluoromethyl)quinazolin-4(3H)-ones from trifluoroacetimidoyl chlorides and amines》 was published in Organic Chemistry Frontiers in 2020. These research results belong to Chen, Zhengkai; Wang, Le-Cheng; Zhang, Jiajun; Wu, Xiao-Feng. Quality Control of 4-Chloro-2-iodoaniline The article mentions the following:

A palladium-catalyzed three-component carbonylative reaction of trifluoroacetimidoyl chlorides and amines for the synthesis of valuable 2-(trifluoromethyl)quinazolin-4(3H)-ones was developed. Broad substrate scope (41 examples), high efficiency (up to 99% yield) and no manipulation of CO gas constituted the notable features of this reaction. The present strategy was applied to the late-stage modification of natural mols. and to the synthesis of the bioactive alkaloid mol. rutaecarpine. The results came from multiple reactions, including 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. 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.Quality Control of 4-Chloro-2-iodoaniline

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

Mishra, Ashish A.; Bhanage, Bhalchandra M. published their research in New Journal of Chemistry in 2021. The article was titled 《Ru-Tethered (R,R)-TsDPEN with DMAB as an efficient catalytic system for high enantioselective one-pot synthesis of chiral β-aminol via asymmetric transfer hydrogenation》.Electric Literature of C6H5ClIN The article contains the following contents:

This work reflected Ru-tethered-TsDPEN as an active chiral catalyst for one pot selective synthesis of optically active α-substituted alcs. ArCH(OH)CH2NHAr1 [Ar = Ph, 2-FC6H4, 2,3-(MeO)2C6H3, etc.; Ar1 = Ph, 4-MeC6H4, 4-ClC6H4, 4-Cl-2-I-C6H3, etc.; stereo = S] and its derivatives from α-bromo ketones ArCOCH2Br in presence of dimethylamine borane (DMAB) as hydrogen source. Various Ru-chiral catalysts were screened and methodol. proceeded via a (R,R) Ru-tethered TsDPEN catalyst through asym. transfer hydrogenation (ATH) of in-situ formed ketones to corresponding chiral β-aminol product. Thus, Ru-tethered TsDPEN-DMAB catalytic system works efficiently with higher yield and high enantiomeric excess over others for ATH process. Based on a study of ortho, meta and para substituted α-bromo acetophenone derivatives, effective enantioselectivity was observed for ortho substituted β-aminol. The mechanism was optimized depending on product anal. with help of its kinetic AT-IR study. This work also focused on synthesis of various β-amino alc. derivatives where effect of an EWG and EDG on enantio-selectivity was studied.4-Chloro-2-iodoaniline(cas: 63069-48-7Electric Literature of C6H5ClIN) was used in this study.

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.Electric Literature of C6H5ClIN

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

Yang, Zhen; Koenigs, Rene M. published their research in Chemistry – A European Journal in 2021. The article was titled 《Photoinduced Palladium-Catalyzed Dicarbofunctionalization of Terminal Alkynes》.Application In Synthesis of tert-Butyl 4-iodopiperidine-1-carboxylate The article contains the following contents:

Herein, a conceptually distinct approach was developed that allowed for the dicarbofunctionalization of alkynes at room temperature using simple, bench-stable alkyl iodides and a second mol. of alkyne as coupling partner. Specifically, the photochem. activation of palladium complexes enabled this strategic dicarbofunctionalization via addition of alkyl radicals from secondary and tertiary alkyl iodides and formation of an intermediate palladium vinyl complex that could undergo subsequent Sonogashira reaction with a second alkyne mol. This alkylation-alkynylation sequence allowed the one-step synthesis of 1,3-enynes including heteroarenes and biol. active compounds with high efficiency without exogenous photosensitizers or oxidants and now opens up pathways towards cascade reactions via photochem. palladium catalysis. In the experiment, the researchers used many compounds, for example, tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3Application In Synthesis of tert-Butyl 4-iodopiperidine-1-carboxylate)

tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3) 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 In Synthesis of tert-Butyl 4-iodopiperidine-1-carboxylate

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

Karmakar, Swastik; Das, Prasanta; Kundu, Sandip published their research in New Journal of Chemistry in 2021. The article was titled 《Silver-catalyzed tandem 5- and 6-endo-cyclizations via concomitant yne-ol-imine activation: selective entry to 2-aryldihydrofuroquinolines》.Electric Literature of C6H5ClIN The article contains the following contents:

A silver(I) catalyzed domino imination-intramol. biheterocyclization-aromatization cascade has been developed to construct 2-aryl/-heteroaryl dihydrofuroquinolines in moderate to good yield using an aldehydes and unprotected 4-(2-aminophenyl)but-3-yn-1-ols as precursors. Sequential Ag-(I)-induced 5-endo-dig cyclization of the yne-ol part and 6-endo-trig cyclization of a proposed Ag-bound imine, followed by aromatization, furnish the furoquinoline derivatives In the part of experimental materials, we found many familiar compounds, such as 4-Chloro-2-iodoaniline(cas: 63069-48-7Electric Literature of C6H5ClIN)

4-Chloro-2-iodoaniline(cas: 63069-48-7) belongs to anime. Many important products require amines as part of their syntheses. Methylamine is utilized in the production of the analgesic meperidine (trade name Demerol) and the photographic developer Metol (trademark), and dimethylamine is used in the synthesis of the antihistamine diphenhydramine (trade name Benadryl), the solvent dimethylformamide (DMF), and the rocket propellant 1,1-dimethylhydrazine. The synthesis of the insect repellent N,N-diethyl-m-toluamide (DEET) incorporates diethylamine while that of the synthetic fibre Kevlar requires aromatic amines.Electric Literature of C6H5ClIN

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

Matos, Catiucia R. M. O.; Sarmiento, Charlie V.; C. Silva, Henrique; Ferreira, Glaucio B.; Guedes, Guilherme P.; Nunes, Wallace C.; Ronconi, Celia M. published their research in Dalton Transactions in 2021. The article was titled 《Field-induced single-ion magnets exhibiting tri-axial anisotropy in a 1D Co(II) coordination polymer with a rigid ligand 4,4′-(buta-1,3-diyne-1,4-diyl)dibenzoate》.Product Details of 619-58-9 The article contains the following contents:

Herein a 1-dimensional Co(II) coordination polymer [Co(η1-L1)(η2-L1)(py)2(H2O)]n (CoCP) was synthesized using the rigid H2L1 proligand, containing a long spacer bearing two triple bonds. Single-crystal x-ray diffraction showed that Co(II) adopts a distorted octahedral geometry. The state-averaged complete active SCF (SA-CASSCF) calculation showed that the ground state of CoCP is a high spin quartet with a highly multiconfigurational character of its electronic structure. Due to the large intra- and intermol. distances between the spin carriers, the magnetic interactions are negligible and the zero-field splitting (ZFS) effects of Co(II) ions are predominant. This behavior was confirmed by d.c. (d.c.) magnetic measurements and theor. calculations using the broken-symmetry approach. Quantum chem. calculations indicate that CoCP has a neg. axial component possessing mixed tri-axial anisotropy. The d.c. magnetic susceptibility data were fitted with a Griffith-Figgis Hamiltonian and the obtained parameters are in good agreement with those simulated by the ab initio calculation A.c. (a.c.) magnetic measurements showed a field induced slow magnetic relaxation in CoCP, which is attributed to the hyperfine interaction effects. After reading the article, we found that the author used 4-Iodobenzoic acid(cas: 619-58-9Product Details of 619-58-9)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides.Product Details of 619-58-9 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.

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

Yang, Shuai; Chen, Yuli; Huang, Shuaijian; Deng, Lu; Wu, Yuanyuan; Zheng, Xiu; Omonov, Shakhzodjon; Zeng, Minfeng published an article in 2021. The article was titled 《Gelatin-pyrolyzed mesoporous N-doped carbon supported Pd as high-performance catalysts for aqueous Heck reactions》, and you may find the article in Applied Organometallic Chemistry.Related Products of 625-99-0 The information in the text is summarized as follows:

Nitrogen-doped mesoporous carbon-supported Pd (Pd@N-C) catalysts were prepared by pyrolyzing gelatin/templates/PdCl2 hydrogels under N2 atmosphere at 800°C. Using poly (ethylene glycol) block poly (propylene glycol) block poly (ethylene glycol) (P123) as soft template and/or colloidal SiO2 as hard templates can significantly improve the Brunauer-Emmett-Teller (BET) surface area, porous structure, and pore volumes of the resultant Pd@N-C catalysts. Pd nanoparticles sized from 10-20 nm can be well immobilized on the mesoporous carbon matrix by one-pot carbonization (OC) and/or solution impregnation (SI) process. The resultant Pd@N-C catalysts with best phys. properties was found in the case of Pd@N-C-SiO2-OC (1/1), exhibiting high BET surface area of 695.2 m2/g, large pore volume of 1.05 cm3/g, high mesoporous centered at 3.7 and 9.1 nm, rich N content of 7.7%, and high thermal stability with beginning decomposition temperature above 500°C. It showed excellent activities for aqueous Heck coupling reactions of aromatic iodides and Bu acrylates and can be recycled for at least eight times with yield still higher than 80%. This work might facilitate a versatile platform for green and functional utilization of nature-rich biopolymer of gelatin. The experimental process involved the reaction of 1-Chloro-3-iodobenzene(cas: 625-99-0Related Products of 625-99-0)

1-Chloro-3-iodobenzene(cas: 625-99-0) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Related Products of 625-99-0

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