Author: Jessica.F

The author of 《Nickel-Catalyzed Regioselective Hydroalkylation and Hydroarylation of Alkenyl Boronic Esters》 were Bera, Srikrishna; Hu, Xile. And the article was published in Angewandte Chemie, International Edition in 2019. Recommanded Product: tert-Butyl 4-iodopiperidine-1-carboxylate The author mentioned the following in the article:

Metal hydride catalyzed hydrocarbonation reactions of alkenes are an efficient approach to construct new C-C bonds from readily available alkenes. However, the regioselectivity of hydrocarbonation remains challenging to be controlled. In Ni hydride (NiH) catalyzed hydrocarbonation, linear selectivity is most often obtained because of the relative stability of the linear Ni-alkyl intermediate over its branched counterpart. Herein, the boronic pinacol ester (Bpin) group directs a Ni-catalyzed hydrocarbonation to occur at its adjacent C center, resulting in formal branch selectivity. Both alkyl and aryl halides can be used as electrophiles in this hydrocarbonation, providing access to a wide range of secondary alkyl Bpin derivatives, which are valuable building blocks in synthetic chem. The utility of the method is demonstrated by the late-stage functionalization of natural products and drug mols., the synthesis of an anticancer agent, and iterative syntheses. In the experiment, the researchers used many compounds, for example, tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3Recommanded Product: tert-Butyl 4-iodopiperidine-1-carboxylate)

tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3) 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.Recommanded Product: tert-Butyl 4-iodopiperidine-1-carboxylate

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

《Aminoalkyl radicals as halogen-atom transfer agents for activation of alkyl and aryl halides》 was published in Science (Washington, DC, United States) in 2020. These research results belong to Constantin, Timothee; Zanini, Margherita; Regni, Alessio; Sheikh, Nadeem S.; Julia, Fabio; Leonori, Daniele. SDS of cas: 589-87-7 The article mentions the following:

Organic halides are important building blocks in synthesis, but their use in (photo)redox chem. is limited by their low reduction potentials. Halogen-atom transfer remains the most reliable approach to exploit these substrates in radical processes despite its requirement for hazardous reagents and initiators such as tributyltin hydride. In this study, we demonstrate that α-aminoalkyl radicals, easily accessible from simple amines, promote the homolytic activation of carbon-halogen bonds with a reactivity profile mirroring that of classical tin radicals. This strategy conveniently engages alkyl and aryl halides in a wide range of redox transformations to construct sp3-sp3, sp3-sp2, and sp2-sp2 carbon-carbon bonds under mild conditions with high chemoselectivity. The experimental part of the paper was very detailed, including the reaction process of 1-Bromo-4-iodobenzene(cas: 589-87-7SDS of cas: 589-87-7)

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

《A Macrocycle Based on a Heptagon-Containing Hexa-peri-hexabenzocoronene》 was written by Jimenez, Vicente G.; David, Arthur H. G.; Cuerva, Juan M.; Blanco, Victor; Campana, Araceli G.. Category: iodides-buliding-blocks And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

A cyclophane is reported incorporating two units of a heptagon-containing extended polycyclic aromatic hydrocarbon (PAH) analog of the hexa-peri-hexabenzocoronene (HBC) moiety (hept-HBC). This cyclophane represents a new class of macrocyclic structures that incorporate for the first time seven-membered rings within extended PAH frameworks. The saddle curvature of the hept-HBC macrocycle units induced by the presence of the nonhexagonal ring along with the flexible alkyl linkers generate a cavity with shape complementarity and appropriate size to enable π interactions with fullerenes. Therefore, the cyclophane forms host-guest complexes with C60 and C70 with estimated binding constants of Ka=420±2 M-1 and Ka=(6.49±0.23)x103 M-1, resp. As a result, the macrocycle can selectively bind C70 in the presence of an excess of a mixture of C60 and C70.1-Bromo-4-iodobenzene(cas: 589-87-7Category: iodides-buliding-blocks) was used in this study.

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

Rezayee, Nomaan M.; Enemaerke, Valdemar J.; Linde, Sif T.; Lamhauge, Johannes N.; Reyes-Rodriguez, Gabriel J.; Joergensen, Karl Anker; Lu, Chenxi; Houk, K. N. published their research in Journal of the American Chemical Society in 2021. The article was titled 《An Asymmetric SN2 Dynamic Kinetic Resolution》.Category: iodides-buliding-blocks The article contains the following contents:

The SN2 reaction exhibits the classic Walden inversion, indicative of the stereospecific backside attack of the nucleophile on the stereogenic center. Observation of the inversion of the stereocenter provides evidence for an SN2-type displacement. However, this maxim is contingent on substitution proceeding on a discrete stereocenter. Here we report an SN2 reaction that leads to enantioenrichment of product despite starting from a racemic mixture of starting material. The enantioconvergent reaction proceeds through a dynamic Walden cycle, involving an equilibrating mixture of enantiomers, initiated by a chiral aminocatalyst and terminated by a stereoselective SN2 reaction at a tertiary carbon to provide a quaternary carbon stereocenter. A combination of computational, kinetic, and empirical studies elucidates the multifaceted role of the chiral organocatalyst to provide a model example of the Curtin-Hammett principle. These examples challenge the notion of enantioenriched products exclusively arising from predefined stereocenters when operating through an SN2 mechanism. Based on these principles, examples are included to highlight the generality of the mechanism. We anticipate the asym. SN2 dynamic kinetic resolution to be used for a variety of future reactions. The experimental part of the paper was very detailed, including the reaction process of Trimethylsulfoxonium iodide(cas: 1774-47-6Category: iodides-buliding-blocks)

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.Category: iodides-buliding-blocks

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

In 2022,Salardon, Noemi; Otarola, Guillermo; Manas, Clara; Merino, Estibaliz; Batanero, Belen published an article in Journal of Environmental Chemical Engineering. The title of the article was 《Electrochemically driven one-pot oxidative conversion of arylhydrazines into aromatic iodides》.SDS of cas: 90-14-2 The author mentioned the following in the article:

The efficient metal-free electrosynthesis of aryl iodides ArI [Ar = Ph, 4-OMeC6H4, 1-naphthyl, etc.] was here reported starting from aryl hydrazines. Surprisingly this dinitrated arylhydrazine minimized, under the applied exptl. conditions, any anodic multilayered film formation. This sustainable iodide-mediated oxidative dehydrazination enabled coupling reaction of electrogenerated iodine with aryl radicals from electron-deficient arylhydrazines employing electricity as the driving force and an inexpensive halogen source. A mechanistic proposal explaining the formation of aryl iodides was presented and discussed. In the part of experimental materials, we found many familiar compounds, such as 1-Iodonaphthalene(cas: 90-14-2SDS of cas: 90-14-2)

1-Iodonaphthalene(cas: 90-14-2) 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.SDS of cas: 90-14-2

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

Category: iodides-buliding-blocksIn 2021 ,《Room-temperature phosphorescence of a water-soluble supramolecular organic framework》 was published in Chemical Communications (Cambridge, United Kingdom). The article was written by Xu, Chen; Lin, Xiaohan; Wu, Wenjun; Ma, Xiang. The article contains the following contents:

A flexible porous water-soluble supramol. organic framework was developed, which could efficiently exhibit phosphorescence both in an aqueous phase and in a film state at room-temperature In the experiment, the researchers used 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

《A New Structural Motif for an Enantiomerically Pure Metallosupramolecular Pd4L8 Aggregate by Anion Templating》 was published in Angewandte Chemie, International Edition in 2014. These research results belong to Klein, Christoph; Guetz, Christoph; Bogner, Maximilian; Topic, Filip; Rissanen, Kari; Luetzen, Arne. Recommanded Product: 189518-78-3 The article mentions the following:

An enantiomerically pure BINOL-based bis(3-pyridyl) ligand 1 assembles into a homochiral [Pd4(1)8] complex upon coordination to tetravalent PdII ions. The formation of this aggregate is templated by two tetrafluoroborate counterions that are encapsulated in two peripheral cavities. The resulting structure is a new structural motif for this kind of metallosupramol. assemblies that arranges the palladium ions in a distorted tetrahedral fashion and forces ligand 1 to adopt two different conformations. Both phenomena are unique and cause an overall three-dimensional structure that has another confined, chiral, and hydrophilic central cavity. The experimental process involved the reaction of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Recommanded Product: 189518-78-3)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) 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. Recommanded Product: 189518-78-3 Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.

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

《Enantiomerically Pure Trinuclear Helicates via Diastereoselective Self-Assembly and Characterization of Their Redox Chemistry》 was written by Guetz, Christoph; Hovorka, Rainer; Struch, Niklas; Bunzen, Jens; Meyer-Eppler, Georg; Qu, Zheng-Wang; Grimme, Stefan; Topic, Filip; Rissanen, Kari; Cetina, Mario; Engeser, Marianne; Luetzen, Arne. Computed Properties of C24H20I2O4 And the article was included in Journal of the American Chemical Society on August 20 ,2014. The article conveys some information:

A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2,2′-dihydroxy-1,1′-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand undergoes completely diastereoselective self-assembly into D2-sym. double-stranded trinuclear helicates upon coordination to copper(I) and silver(I) ions and to D3-sym. triple-stranded trinuclear helicates upon coordination to copper(II), zinc(II), and iron(II) ions as demonstrated by mass spectrometry, NMR and CD spectroscopy in combination with quantum chem. calculations and x-ray diffraction anal. According to the calculations, the single diastereomers that are formed during the self-assembly process are strongly preferred compared to the next stable diastereomers. Due to this strong preference, the self-assembly of the helicates from racemic 1 proceeds in a completely narcissistic self-sorting manner with an extraordinary high degree of self-sorting that proves the power and reliability of this approach to achieve high-fidelity diastereoselective self-assembly via chiral self-sorting to get access to stereochem. well-defined nanoscaled objects. Furthermore, mass spectrometric methods including electron capture dissociation MSn experiments could be used to elucidate the redox behavior of the copper helicates. After reading the article, we found that the author used (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Computed Properties of C24H20I2O4)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) 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. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Computed Properties of C24H20I2O4

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

《Gold (I/III)-Catalyzed Trifluoromethylthiolation and Trifluoromethylselenolation of Organohalides》 was written by Mudshinge, Sagar R.; Yang, Yuhao; Xu, Bo; Hammond, Gerald B.; Lu, Zhichao. Product Details of 626-02-8This research focused ontrifluoromethyl thioether preparation; silver trifluoromethanethiolate organohalide trifluoromethylthiolation gold redox catalyst; selenoether trifluoromethyl preparation; tetramethylammonium trifluoromethylselenate organohalide trifluoromethylselenolation gold redox catalyst; Cross-Coupling; Gold Catalysis; Organohalides; Trifluoromethylselenolation; Trifluoromethylthiolation. The article conveys some information:

The first C-SCF3/SeCF3 cross-coupling reactions using gold redox catalysis [(MeDalphos)AuCl], AgSCF3 or Me4NSeCF3, and organohalides ArI (Ar = Ph, 4-bromophenyl, 2,6-dimethoxypyridin-3-yl, ec.), (E/Z)-RCH=CHI (R = C(O)OMe, Ph, naphthalen-1-yl, etc.) and R1CCBr (R1 = Ph, 4-fluorophenyl, 4-nitrophenyl, etc.) as substrates are reported. The new methodol. enables a one-stop shop synthesis of aryl/alkenyl/alkynyl trifluoromethylthio- and selenoethers ArSCF3, (E/Z)-RCH=CHSCF3, R1CCSCF3, and RSeCF3 with a broad substrate scope (>60 examples with up to 97% isolated yield). The method is scalable, and its robustness is evidenced by the late-stage functionalization of various bioactive mols., which makes this reaction an attractive alternative in the synthesis of trifluoromethylthio- and selenoethers for pharmaceutical and agrochem. research and development. In the experiment, the researchers used many compounds, for example, 3-Iodophenol(cas: 626-02-8Product Details of 626-02-8)

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.Product Details of 626-02-8 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.

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

Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthaleneOn March 1, 2021, Chen, Ching-Nung; Cheng, Wei-Min; Wang, Jian-Kai; Chao, Tzu-Hsuan; Cheng, Mu-Jeng; Liu, Rai-Shung published an article in Angewandte Chemie, International Edition. The article was 《Gold-catalyzed [3+2]-annulations of α-aryl diazoketones with the tetrasubstituted alkenes of cyclopentadienes: High stereoselectivity and enantioselectivity》. The article mentions the following:

This work reports gold-catalyzed [3+2]-annulations of α-diazo ketones with highly substituted cyclopentadienes, affording bicyclic 2,3-dihydrofurans with high regio- and stereoselectivity. The reactions highlights the first success of tetrasubstituted alkenes to undergo [3+2]-annulations with α-diazo carbonyls. The enantioselective annulations are also achieved with high enantioselectivity using chiral forms of gold and phosphoric acid. Our mechanistic anal. supports that cyclopentadienes serve as nucleophiles to attack gold carbenes at the more substituted alkenes, yielding gold enolates that complex with chiral phosphoric acid to enhance the enantioselectivity. In addition to this study using (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene, there are many other studies that have used (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene) was used in this study.

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) 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. Quality Control of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene 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