Month: October 2022

Computed Properties of C5H4INIn 2021 ,《Steric Hindrance in Metal Coordination Drives the Separation of Pyridine Regioisomers Using Rhodium(II)-Based Metal-Organic Polyhedra》 was published in Angewandte Chemie, International Edition. The article was written by Hernandez-Lopez, Laura; Martinez-Esain, Jordi; Carne-Sanchez, Arnau; Grancha, Thais; Faraudo, Jordi; Maspoch, Daniel. The article contains the following contents:

The physicochem. similarity of isomers makes their chem. separation through conventional techniques energy intensive. Herein, we report that, instead of using traditional encapsulation-driven processes, steric hindrance in metal coordination on the outer surface of RhII-based metal-organic polyhedra (Rh-MOPs) can be used to sep. pyridine-based regioisomers via liquid-liquid extraction Through mol. dynamics simulations and wet experiments, we discovered that the capacity of pyridines to coordinatively bind to Rh-MOPs is determined by the positions of the pyridine substituents relative to the pyridine nitrogen and is influenced by steric hindrance. Thus, we exploited the differential solubility of bound and non-bound pyridine regioisomers to engineer liquid-liquid self-sorting systems. As a proof of concept, we separated four different equimol. mixtures of regioisomers, including a mixture of the industrially relevant compounds 2-chloropyridine and 3-chloropyridine, isolating highly pure compounds in all cases. 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) is a halogenated heterocycle that is a building block for proteomics research. 4-Iodopyridine is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists.Computed Properties of C5H4IN

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

《Effect of triptycene unit on the performance of porphyrin-based dye-sensitized solar cells》 was written by Yan, Mao; Wang, Qun-Hui; Zhu, Yi-Zhou; Han, Ming-Liang; Yan, Yi-Qiao; Zheng, Jian-Yu. Related Products of 619-58-9This research focused ontriptycene porphrin dye sensitized solar cell. The article conveys some information:

Triptycene has been first introduced into porphyrin sensitizers (JY74 and JY75) for dye sensitized solar cells. Compared to reference dye YD26, the homoarom. electron delocalization of triptycene makes the designed dyes a broadened absorption. Meanwhile, the rigid shape-persistent character of triptycene endows JY74 and JY75 an improved ability to diminish the charge recombination between electrolyte and semiconductor TiO2. As a result, after structural modification, larger short-circuit current and higher open-circuit voltage are achieved for dyes JY74 and JY75. The power conversion efficiency of JY75 is increased by 26.8 % compared to that of YD26. Consequently, triptycene may be a promising bulky steric hindrance group for decorating photosensitizer to get an attractive photovoltaic performance.4-Iodobenzoic acid(cas: 619-58-9Related Products of 619-58-9) was used in this study.

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Iodo 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.Related Products of 619-58-9

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

《Two-Photon Absorption Enhancement by the Inclusion of a Tropone Ring in Distorted Nanographene Ribbons》 was written by Castro-Fernandez, Silvia; Cruz, Carlos M.; Mariz, Ines F. A.; Marquez, Irene R.; Jimenez, Vicente G.; Palomino-Ruiz, Lucia; Cuerva, Juan M.; Macoas, Ermelinda; Campana, Araceli G.. Category: iodides-buliding-blocksThis research focused ontwo photon absorption tropone ring distorted nanographene ribbon; carbon materials; graphene; helicenes; nanostructures; nonlinear optics. The article conveys some information:

A new family of distorted ribbon-shaped nanographenes was designed, synthesized, and their optical and electrochem. properties were evaluated, pointing out an unprecedented correlation between their structural characteristics and the two-photon absorption (TPA) responses and electrochem. band gaps. Three nanographene ribbons have been prepared: a seven-membered-ring-containing nanographene presenting a tropone moiety at the edge, its full-carbon analog, and a purely hexagonal one. We have found that the TPA cross-sections and the electrochem. band gaps of the seven-membered-ring-containing compounds are higher and lower, resp., than those of the fully hexagonal polycyclic aromatic hydrocarbon (PAH). Interestingly, the inclusion of addnl. curvature has a pos. effect in terms of non-linear optical properties of those ribbons. In the experimental materials used by the author, we found 1-Bromo-4-iodobenzene(cas: 589-87-7Category: iodides-buliding-blocks)

1-Bromo-4-iodobenzene(cas: 589-87-7) is mainly used as the OLED pharmaceutical intermediate, as reagent for in situ desilylation and coupling of silylated alkynes, as substrate in copper-free Sonogashira coupling in aqueous acetone..Category: iodides-buliding-blocks It is also used in synthesis of β,β,dibromostyrenes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids)

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

In 2019,Chemical Communications (Cambridge, United Kingdom) included an article by Joshi, Abhisek; Semwal, Rashmi; Suresh, Eringathodi; Adimurthy, Subbarayappa. Quality Control of 1-Bromo-3-iodobenzene. The article was titled 《Pd-Catalyzed regioselective synthesis of 2,6-disubstituted pyridines through denitrogenation of pyridotriazoles and 3,8-diarylation of imidazo[1,2-a]pyridines》. The information in the text is summarized as follows:

Synthesis of 2,6-disubstituted pyridines I (R = Ph, pyridin-3-yl, 3-methylphenyl, etc.; R1 = H, 4-Cl, 2-acetoxy, pivaloyloxy) from pyridotriazoles II through palladium-catalyzed aerobic oxidative denitrogenative reactions has been described. Denitrogenation of arylated pyridotriazoles II generates metal-carbene intermediates in situ and provides selectively 6-aryl-2-benzoylpyridines I. The same conditions have been extended to regioselective C-3 and C-8 diarylation of several imidazo[1,2-a]pyridines III (R2 = Ph, tert-Bu, 4-chlorophenyl, etc.; R3 = H, 3-Me, 4-F, etc.; R4 = H, 6-Me, 7-Me) and 3-(3-methoxyphenyl)-1-phenylbenzo[a]imidazo[5,1,2-cd]indolizine. In the experiment, the researchers used many compounds, for example, 1-Bromo-3-iodobenzene(cas: 591-18-4Quality Control of 1-Bromo-3-iodobenzene)

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.Quality Control of 1-Bromo-3-iodobenzene Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

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

In 2019,Chemical Communications (Cambridge, United Kingdom) included an article by Liang, Ren-Xiao; Xu, Deng-Yun; Yang, Fu-Ming; Jia, Yi-Xia. Name: 2-Iodobenzoic acid. The article was titled 《A Pd-catalyzed domino Larock annulation/dearomative Heck reaction》. The information in the text is summarized as follows:

A palladium-catalyzed domino Larock annulation/dearomative Heck reaction was developed, which delivered a range of tetracyclic indoline derivatives in moderate to excellent yields through a Larock annulation of N-bromobenzoyl o-iodoanilines with alkynes and a subsequent intramol. dearomative Heck reaction. This protocol provided a straightforward route to structurally diverse indolines from readily available starting materials by forming two new rings and three chem. bonds in a single step. In the experiment, the researchers used many compounds, for example, 2-Iodobenzoic acid(cas: 88-67-5Name: 2-Iodobenzoic acid)

2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Name: 2-Iodobenzoic acid 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

The author of 《meta-Selective C-H Activation of Arenes at Room Temperature Using Visible Light: Dual-Function Ruthenium Catalysis》 were Sagadevan, Arunachalam; Greaney, Michael F.. And the article was published in Angewandte Chemie, International Edition in 2019. HPLC of Formula: 301673-14-3 The author mentioned the following in the article:

Ruthenium-catalyzed meta-C-H activation of arenes at room temperature is reported to proceed under blue-light irradiation A variety of heteroarenes are compatible with this photochem. process, which leads to the corresponding meta C-C coupling products in good to very good yields. Initial mechanistic studies suggest a single-electron transfer process occurs between a photoexcited RuII-cyclometalated complex and alkyl halides, enabling meta-C-H functionalization reaction via carbon-centered radicals.tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3HPLC of Formula: 301673-14-3) was used in this study.

tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3) is one of organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond. Iodo 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.HPLC of Formula: 301673-14-3

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

Electric Literature of C6H5ClINIn 2022 ,《Photocatalytic Markovnikov-type addition and cyclization of terminal alkynes leading to 4-sulfonyl quinoline-2(1H)-ones》 was published in Chemical Communications (Cambridge, United Kingdom). The article was written by Zhai, Yu-Lin; Zhou, Hui; Liu, Qing-Quan; Leng, Bo-Rong; Zhang, Zixian; Li, Jia-Zhuo; Wang, De-Cai; Zhu, Yi-Long. The article contains the following contents:

A new and expedient photocatalytic protocol for the construction of quinolin-2(1H)-ones I [R1 = H, 6-Me, 7-Cl, etc.; R2 = Me, cyclohexyl, Bn, etc.; Ar = Ph, 4-MeC6H4, 2-thienyl, etc.] via Markovnikov-type sulfonylation/6-endo-trig cyclization/selective C(O)-CF3 bond cleavage starting from N-alkyl-N-(2-ethynylphenyl)-2,2,2-trifluoroacetamides and sulfinic acids had been developed. It was as an unprecedented protocol for the preparation of 4-sulfonylquinoline-2(1H)-ones with high efficiency, mild reaction conditions, acceptable yields and a wide range of substrates. 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. 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).Electric Literature of C6H5ClIN

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

Synthetic Route of C6H4BrIIn 2020 ,《A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally Activated Delayed Fluorescence and Delayed Fluorescence by Triplet-Triplet Annihilation》 was published in Journal of the American Chemical Society. The article was written by Suresh, Subeesh Madayanad; Duda, Eimantas; Hall, David; Yao, Zhen; Bagnich, Sergey; Slawin, Alexandra M. Z.; Bassler, Heinz; Beljonne, David; Buck, Manfred; Olivier, Yoann; Kohler, Anna; Zysman-Colman, Eli. The article contains the following contents:

An easy-to-access, near-UV-emitting linearly extended B,N-doped heptacene with high thermal stability is designed and synthesized in good yields. This compound exhibits thermally activated delayed fluorescence (TADF) at ambient temperature from a multiresonant (MR) state and represents a rare example of a non-triangulene-based MR-TADF emitter. At lower temperatures triplet-triplet annihilation dominates. The compound simultaneously possesses narrow, deep-blue emission with CIE coordinates of (0.17, 0.01). While delayed fluorescence results mainly from triplet-triplet annihilation at lower temperatures in THF solution, where aggregates form upon cooling, the TADF mechanism takes over around room temperature in solution when the aggregates dissolve or when the compound is well dispersed in a solid matrix. The potential of our mol. design to trigger TADF in larger acenes is demonstrated through the accurate prediction of ΔEST using correlated wave-function-based calculations On the basis of these calculations, we predicted dramatically different optoelectronic behavior in terms of both ΔEST and the optical energy gap of two constitutional isomers where only the boron and nitrogen positions change. A comprehensive structural, optoelectronic, and theor. investigation is presented. In addition, the ability of the achiral mol. to assemble on a Au(111) surface to a highly ordered layer composed of enantiomorphic domains of racemic entities is demonstrated by scanning tunneling microscopy. After reading the article, we found that the author used 1-Bromo-3-iodobenzene(cas: 591-18-4Synthetic Route of 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.Synthetic Route of C6H4BrI

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

《Transition metal-free and regioselective vinylation of phosphine oxides and H-phosphinates with VBX reagents》 was written by Castoldi, Laura; Rajkiewicz, Adam A.; Olofsson, Berit. Formula: C7H5IO2This research focused onvinylation regioselective phosphine oxide phosphinate vinylbenziodoxolone reagent; alkenyl phosphine oxide phosphinate preparation chemoselective regioselective. The article conveys some information:

A series of phosphine oxides and H-phosphinates were vinylated in the presence of the iodine(III) reagents vinylbenziodoxolones (VBX), providing the corresponding alk-1-enyl phosphine oxides and alk-1-enyl phosphinates in good yields with complete chemo- and regioselectivity. The vinylation proceeds in open flask under mild and transition metal-free conditions. In the experimental materials used by the author, we found 2-Iodobenzoic acid(cas: 88-67-5Formula: C7H5IO2)

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. Formula: 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 2015,Gonzalez-de-Castro, Angela; Xiao, Jianliang published 《Green and Efficient: Iron-Catalyzed Selective Oxidation of Olefins to Carbonyls with O2》.Journal of the American Chemical Society published the findings.Related Products of 624-73-7 The information in the text is summarized as follows:

A mild and operationally simple iron-catalyzed protocol for the selective aerobic oxidation of aromatic olefins to carbonyl compounds is described. Catalyzed by a Fe(III) species bearing a pyridine bisimidazoline ligand at 1 atm of O2, α- and β-substituted styrenes were cleaved to afford benzaldehydes and aromatic ketones generally in high yields with excellent chemoselectivity and very good functional group tolerance, including those containing radical-sensitive groups. With α-halo-substituted styrenes, the oxidation took place with concomitant halide migration to afford α-halo acetophenones. Various observations have been made, pointing to a mechanism in which both mol. oxygen and the olefinic substrate coordinate to the iron center, leading to the formation of a dioxetane intermediate, which collapses to give the carbonyl product. Safety: all oxidation reactions should be carried out with caution due to potential fire and explosion hazards. The experimental process involved the reaction of 1,2-Diiodoethane(cas: 624-73-7Related Products of 624-73-7)

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond. Iodo 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.Related Products of 624-73-7

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