Month: October 2022

Iodide is one of the largest monatomic anions. It is assigned a radius of around 206 picometers. 1120-90-7, formula is C5H4IN, Name is 3-Iodopyridine.For comparison, the lighter halides are considerably smaller: bromide (196 pm), chloride (181 pm), and fluoride (133 pm). In part because of its size, iodide forms relatively weak bonds with most elements. Category: iodides-buliding-blocks.

Uzelac, Marina;Mastropierro, Pasquale;de Tullio, Marco;Borilovic, Ivana;Tarres, Marius;Kennedy, Alan R.;Aromi, Guillem;Hevia, Eva research published 《 Tandem Mn-I Exchange and Homocoupling Processes Mediated by a Synergistically Operative Lithium Manganate》, the research content is summarized as follows. Pairing lithium and manganese(II) to form lithium manganate [Li₂Mn(CH₂SiMe₃)₄] enables the efficient direct Mn-I exchange of aryliodides, affording transient (aryl)lithium manganate intermediates which in turn undergo spontaneous C-C homocoupling at room temperature to furnish sym. (bis)aryls in good yields under mild reaction conditions. The combination of EPR with X-ray crystallog. studies has revealed the mixed Li/Mn constitution of the organometallic intermediates involved in these reactions, including the homocoupling step which had previously been thought to occur via a single-metal Mn aryl species. These studies show Li and Mn working together in a synergistic manner to facilitate both the Mn-I exchange and the C-C bond-forming steps. Both steps are carefully synchronized, with the concomitant generation of the alkyliodide ICH₂SiMe₃ during the Mn-I exchange being essential to the aryl homocoupling process, wherein it serves as an in situ generated oxidant.

Category: iodides-buliding-blocks, 3-Iodopyridine is a heteroaryl halide. It undergoes microwave-assisted coupling with heterocyclic compounds (pyrazole, imidazole, pyrrole and indole) to afford the corresponding N-3-pyridinyl-substituted heterocyclic compounds.

3-Iodopyridine is a useful research chemical used as a reactant in the copper-catalyzed coupling of alkylamines and aryl iodides.

3-Iodopyridine is an isomeric compound that can be synthesized by cross-coupling reactions. This compound has been shown to have nicotinic acetylcholine receptor binding properties and may be useful in the treatment of Alzheimer’s disease. 3-Iodopyridine is a primary amino acid that can be used for the synthesis of amines, which are nitrogen nucleophiles. It has been crystallized with halides and its x-ray structures have been determined. The nmr spectra of 3-iodopyridine show that it contains phosphorus and nitrogen atoms. 3-Iodopyridine is also able to take up nitrate ions from solution, which may be due to its uptake properties., 1120-90-7.

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

In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. 5029-67-4, formula is C5H4IN, Name is 2-Iodopyridine.Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. Quality Control of 5029-67-4.

Urruzuno, Inaki;Andrade-Sampedro, Paula;Correa, Arkaitz research published 《 Late-stage C-H acylation of tyrosine-containing oligopeptides with alcohols》, the research content is summarized as follows. The selective tagging of amino acids within a peptide framework while using atom-economical C-H counterparts poses an unmet challenge within peptide chem. Herein, we report a novel Pd-catalyzed late-stage C-H acylation of a collection of Tyr-containing peptides with alcs. This water-compatible labeling technique is distinguished by its reliable scalability and features the use of ethanol as a renewable feedstock for the assembly of a variety of peptidomimetics.

Quality Control of 5029-67-4, 2-Iodopyridine can be synthesized from 2-chloropyridine or 2-bromopyridine via treatment with iodotrimethylsilane.
2-Iodopyridine, also known as 2-Iodopyridine, is a useful research compound. Its molecular formula is C5H4IN and its molecular weight is 205 g/mol. The purity is usually 95%.
2-Iodopyridine is a halogenated building block. It is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors
2-Iodopyridine is a white crystalline solid that is soluble in water, alcohol, and ether. The molecule contains a methyl group and two iodine atoms. 2-Iodopyridine has several industrial uses. It acts as a precursor to various pharmaceuticals and agrochemicals. The compound also exhibits insulin resistance properties, which may be related to its ability to bind to the insulin receptor and inhibit insulin signaling. 2-Iodopyridine can also be used for treating cancer because it binds to the DNA of cancer cells, preventing replication and leading to cell death.
2-Iodopyridine is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors., 5029-67-4.

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

Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. 626-01-7, formula is C6H6IN, Name is 3-Iodoaniline. 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. Safety of 3-Iodoaniline.

Toth, Balazs L.;Salyi, Gergo;Domjan, Attila;Egyed, Orsolya;Benyei, Attila;Gonda, Zsombor;Novak, Zoltan research published 《 Z-Selective Fluoroalkenylation of (Hetero)Aromatic Systems by Iodonium Reagents in Palladium-Catalyzed Directed C-H Activation》, the research content is summarized as follows. Herein, a stereoselective procedure for direct fluorovinylation of aromatic and heteroaromatic scaffolds is reported. This methodol. development has been realized by palladium-catalyzed ortho C-H activation reaction of a variety of aniline derivatives featuring the regioselectivity via directing groups such as secondary of tertiary amides, ureas or ketones. The application of non-sym. aryl(fluoroalkenyl)iodonium salts as fluoroalkenylating agents allowed mild reaction conditions in general for this transformation. The scope and limitations have been thoroughly investigated and the feasibility has been demonstrated by more than 50 examples.

Safety of 3-Iodoaniline, 3-Iodoaniline is a useful research compound. Its molecular formula is C6H6IN and its molecular weight is 219.02 g/mol. The purity is usually 95%.

3-Iodoaniline is a fatty acid that is used in analytical methods to measure the concentration of human serum in blood. It can be used to estimate the population growth rate, with a half-life of about 13 hours. 3-Iodoaniline reacts with hydrogen bond and proton to form a reaction solution, which can be catalyzed by palladium-catalyzed coupling and suzuki coupling reactions. The activation energies for these reactions are typically in the range of 4-8 kcal/mol. The chemical ionization technique is a type of mass spectrometry that is used to determine kinetic data for this compound. Hydrochloric acid can be added as an acid catalyst to increase the rate of reaction and generate more accurate kinetic data., 626-01-7.

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

Iodide is one of the largest monatomic anions. It is assigned a radius of around 206 picometers. 144-48-9, formula is C2H4INO, Name is 2-Iodoacetamide.For comparison, the lighter halides are considerably smaller: bromide (196 pm), chloride (181 pm), and fluoride (133 pm). In part because of its size, iodide forms relatively weak bonds with most elements. HPLC of Formula: 144-48-9.

Tombling, Benjamin J.;Lammi, Carmen;Lawrence, Nicole;Gilding, Edward K.;Grazioso, Giovanni;Craik, David J.;Wang, Conan K. research published 《 Bioactive Cyclization Optimizes the Affinity of a Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Peptide Inhibitor》, the research content is summarized as follows. Peptides are regarded as promising next-generation therapeutics. However, an anal. of over 1000 bioactive peptide candidates suggests that many have underdeveloped affinities and could benefit from cyclization using a bridging linker sequence. Until now, the primary focus has been on the use of inert peptide linkers. Here, we show that affinity can be significantly improved by enriching the linker with functional amino acids. We engineered a peptide inhibitor of PCSK9, a target for clin. management of hypercholesterolemia, to demonstrate this concept. Cyclization linker optimization from library screening produced a cyclic peptide with ~100-fold improved activity over the parent peptide and efficiently restored low-d. lipoprotein (LDL) receptor levels and cleared extracellular LDL. The linker forms favorable interactions with PCSK9 as evidenced by thermodn., structure-activity relationship (SAR), NMR, and mol. dynamics (MD) studies. This PCSK9 inhibitor is one of many peptides that could benefit from bioactive cyclization, a strategy that is amenable to broad application in pharmaceutical design.

HPLC of Formula: 144-48-9, 2-Iodoacetamide is a synthetic retinoid that binds to the DNA of cells, altering transcription. It also has been found to be effective in treating bowel disease and has been shown to have dna binding activity. The compound was synthesized by attaching iodine molecules to acetamide. 2-Iodoacetamide targets the protein thiols on the surface of cells, which are responsible for oxidation and damage due to reactive oxygen species (ROS). This compound is metabolized by alcohol dehydrogenase and can be used as a biological sample or natural compound is a compound used as an electrophile for covalent modification of nucleophilic residues on proteins (cysteine, methionine, histidine). When modifying the active-site residues of cysteine proteases, α-Iodoacetamide acts as an irreversible inhibitor of these enzymes.

2-Iodoacetamide used in peptide mapping because it covalently binds with thiols in cysteine residues, thereby preventing disulfide bond formation. By virtue of reaction with cysteine, it is an irreversible inhibitor of enzymes with cysteine at the active site. Also reacts with histidine residues though much more slowly, and this activity is responsible for inhibition of ribonuclease.
An alkylating sulfhydryl reagent. Its actions are similar to those of iodoacetate., 144-48-9.

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

Iodide is one of the largest monatomic anions. It is assigned a radius of around 206 picometers. 1120-90-7, formula is C5H4IN, Name is 3-Iodopyridine.For comparison, the lighter halides are considerably smaller: bromide (196 pm), chloride (181 pm), and fluoride (133 pm). In part because of its size, iodide forms relatively weak bonds with most elements. Recommanded Product: 3-Iodopyridine.

Timmer, Brian J. J.;Kravchenko, Oleksandr;Liu, Tianqi;Zhang, Biaobiao;Sun, Licheng research published 《 Off-Set Interactions of Ruthenium-bda Type Catalysts for Promoting Water-Splitting Performance》, the research content is summarized as follows. O-O bond formation with Ru(bda)L2-type catalysts is well-known to proceed through a bimol. reaction pathway, limiting the potential application of these catalysts at low concentrations Herein, we achieved high efficiencies with mononuclear catalysts, with TOFs of 460±32 s-1 at high catalyst loading and 31±3 s-1 at only 1 μM catalyst concentration, by simple structural considerations on the axial ligands. Kinetic and DFT studies show that introduction of an off-set in the interaction between the two catalytic units reduces the kinetic barrier of the second-order O-O bond formation, maintaining high catalytic activity even at low catalyst concentrations The results herein furthermore suggest that π-π interactions may only play a minor role in the observed catalytic activity, and that asymmetry can also rationalize high activity observed for Ru(bda)(isoq)2 type catalysts and offer inspiration to overcome the limitations of 2nd order catalysis.

1120-90-7, 3-Iodopyridine is a heteroaryl halide. It undergoes microwave-assisted coupling with heterocyclic compounds (pyrazole, imidazole, pyrrole and indole) to afford the corresponding N-3-pyridinyl-substituted heterocyclic compounds.

3-Iodopyridine is a useful research chemical used as a reactant in the copper-catalyzed coupling of alkylamines and aryl iodides.

3-Iodopyridine is an isomeric compound that can be synthesized by cross-coupling reactions. This compound has been shown to have nicotinic acetylcholine receptor binding properties and may be useful in the treatment of Alzheimer’s disease. 3-Iodopyridine is a primary amino acid that can be used for the synthesis of amines, which are nitrogen nucleophiles. It has been crystallized with halides and its x-ray structures have been determined. The nmr spectra of 3-iodopyridine show that it contains phosphorus and nitrogen atoms. 3-Iodopyridine is also able to take up nitrate ions from solution, which may be due to its uptake properties., Recommanded Product: 3-Iodopyridine

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

Organic iodides are organic compounds containing a carbon-iodine (C-I) bond. 626-01-7, formula is C6H6IN, Name is 3-Iodoaniline.The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Reference of 626-01-7.

Timelthaler, Daniel;Schoefberger, Wolfgang;Topf, Christoph research published 《 Selective and Additive-Free Hydrogenation of Nitroarenes Mediated by a DMSO-Tagged Molecular Cobalt Corrole Catalyst》, the research content is summarized as follows. We report on the first cobalt corrole that effectively mediates the homogeneous hydrogenation of structurally diverse nitroarenes to afford the corresponding amines. The given catalyst is easily assembled prior to use from 4-tert-butylbenzaldehyde and pyrrole followed by metalation of the resulting corrole macrocycle with cobalt(II) acetate. The thus-prepared complex is self-contained in that the hydrogenation protocol is free from the requirement for adding any auxiliary reagent to elicit the catalytic activity of the applied metal complex. Moreover, a containment system is not required for the assembly of the hydrogenation reaction set-up as both the autoclave and the reaction vessels are readily charged under a regular laboratory atm.

626-01-7, 3-Iodoaniline is a useful research compound. Its molecular formula is C6H6IN and its molecular weight is 219.02 g/mol. The purity is usually 95%.

3-Iodoaniline is a fatty acid that is used in analytical methods to measure the concentration of human serum in blood. It can be used to estimate the population growth rate, with a half-life of about 13 hours. 3-Iodoaniline reacts with hydrogen bond and proton to form a reaction solution, which can be catalyzed by palladium-catalyzed coupling and suzuki coupling reactions. The activation energies for these reactions are typically in the range of 4-8 kcal/mol. The chemical ionization technique is a type of mass spectrometry that is used to determine kinetic data for this compound. Hydrochloric acid can be added as an acid catalyst to increase the rate of reaction and generate more accurate kinetic data., Reference of 626-01-7

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

In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. 1120-90-7, formula is C5H4IN, Name is 3-Iodopyridine.Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. SDS of cas: 1120-90-7.

Taylor, Steven J.;Abeywardane, Asitha;Liang, Shuang;Xiong, Zhaoming;Proudfoot, John R.;Farmer, Bennett Sandy;Gao, Donghong A.;Heim-Riether, Alexander;Smith-Keenan, Lana Louise;Muegge, Ingo;Yu, Yang;Zhang, Qiang;Souza, Donald;Panzenbeck, Mark;Goldberg, Daniel;Hill-Drzewi, Melissa;Margarit, Mariana;Collins, Brandon;Li, John Xiang;Zuvela-Jelaska, Ljiljana;Li, Jun;Farrow, Neil A. research published 《 Indole Inhibitors of MMP-13 for Arthritic Disorders》, the research content is summarized as follows. Here, we described the design, by fragment merging and multiparameter optimization, of selective MMP-13 inhibitors that display an appropriate balance of potency and physicochem. properties to qualify as tool compounds suitable for in vivo testing. Optimization of potency was guided by structure-based insights, specifically to replace an ester moiety and introduce polar directional hydrogen bonding interactions in the core of the mol. By introducing polar enthalpic interactions in this series of inhibitors, the overall beneficial physicochem. properties were maintained. These physicochem. properties translated to excellent drug-like properties beyond potency. In a murine model of rheumatoid arthritis, treatment of mice with selective inhibitors of MMP-13 resulted in a statistically significant reduction in the mean arthritic score vs. control when dosed over a 14 day period.

SDS of cas: 1120-90-7, 3-Iodopyridine is a heteroaryl halide. It undergoes microwave-assisted coupling with heterocyclic compounds (pyrazole, imidazole, pyrrole and indole) to afford the corresponding N-3-pyridinyl-substituted heterocyclic compounds.

3-Iodopyridine is a useful research chemical used as a reactant in the copper-catalyzed coupling of alkylamines and aryl iodides.

3-Iodopyridine is an isomeric compound that can be synthesized by cross-coupling reactions. This compound has been shown to have nicotinic acetylcholine receptor binding properties and may be useful in the treatment of Alzheimer’s disease. 3-Iodopyridine is a primary amino acid that can be used for the synthesis of amines, which are nitrogen nucleophiles. It has been crystallized with halides and its x-ray structures have been determined. The nmr spectra of 3-iodopyridine show that it contains phosphorus and nitrogen atoms. 3-Iodopyridine is also able to take up nitrate ions from solution, which may be due to its uptake properties., 1120-90-7.

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

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), 144-48-9, formula is C2H4INO, Name is 2-Iodoacetamide. Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction. Quality Control of 144-48-9.

Tavares, Lethicia Souza;Ralph, Maria Taciana;Batista, Jacqueline Ellen Camelo;Sales, Ana Clarissa;Ferreira, Laisla Carolina Andrade;Usman, Usman Abdulhadi;da Silva, Valdemiro Amaro Junior;Ramos, Marcio Viana;Lima-Filho, Jose Vitor research published 《 Perspectives for the use of latex peptidases from Calotropis procera for control of inflammation derived from Salmonella infections》, the research content is summarized as follows. Anti-inflammatory properties have been attributed to latex proteins of the medicinal plant Calotropis procera. A mixture of cysteine peptidases (LPp2) from C. procera latex was investigated for control of inflammatory mediators and inflammation in a mouse model of Salmonella infection. LPp2 peptidase activity was confirmed by the BANA assay. Cytotoxicity assays were conducted with immortalized macrophages. Peritoneal macrophages (pMO) from Swiss mice were stimulated with lipopolysaccharide (LPS) in 96-well plates and then cultured with nontoxic concentrations of LPp2. Swiss mice i.v. received LPp2 (10 mg/kg) and then were challenged i.p. with virulent Salmonella enterica Ser. Typhimurium. LPp2 was not toxic at dosages lower than 62.2μg/mL. LPp2 treatments of pMO stimulated with LPS impaired mRNA expression of pro-inflammatory cytokines IL-1β, TNF-α IL-6 and IL-10. LPp2 increased the intracellular bacterial killing in infected pMO. Mice given LPp2 had a lower number of leukocytes in the peritoneal cavity in comparison to control groups 6 h after infection. The bacterial burden and histol. damage were widespread in target organs of mice receiving LPp2. We conclude that LPp2 contains peptidases with strong anti-inflammatory properties, which may render mice more susceptible to early disseminated infection caused by Salmonella.

144-48-9, 2-Iodoacetamide is a synthetic retinoid that binds to the DNA of cells, altering transcription. It also has been found to be effective in treating bowel disease and has been shown to have dna binding activity. The compound was synthesized by attaching iodine molecules to acetamide. 2-Iodoacetamide targets the protein thiols on the surface of cells, which are responsible for oxidation and damage due to reactive oxygen species (ROS). This compound is metabolized by alcohol dehydrogenase and can be used as a biological sample or natural compound is a compound used as an electrophile for covalent modification of nucleophilic residues on proteins (cysteine, methionine, histidine). When modifying the active-site residues of cysteine proteases, α-Iodoacetamide acts as an irreversible inhibitor of these enzymes.

2-Iodoacetamide used in peptide mapping because it covalently binds with thiols in cysteine residues, thereby preventing disulfide bond formation. By virtue of reaction with cysteine, it is an irreversible inhibitor of enzymes with cysteine at the active site. Also reacts with histidine residues though much more slowly, and this activity is responsible for inhibition of ribonuclease.
An alkylating sulfhydryl reagent. Its actions are similar to those of iodoacetate., Quality Control of 144-48-9

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

Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. 5029-67-4, formula is C5H4IN, Name is 2-Iodopyridine. 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. Safety of 2-Iodopyridine.

Tao, Xueqin;Long, Ran;Wu, Di;Hu, Yangguang;Qiu, Ganhua;Qi, Zeming;Li, Benxia;Jiang, Ruibin;Xiong, Yujie research published 《 Anchoring Positively Charged Pd Single Atoms in Ordered Porous Ceria to Boost Catalytic Activity and Stability in Suzuki Coupling Reactions》, the research content is summarized as follows. Single-atom (SA) catalysis bridging homogeneous and heterogeneous catalysis offers new opportunities for organic synthesis, but developing SA catalysts with high activity and stability is still a great challenge. A heterogeneous catalyst of Pd SAs anchored in 3D ordered macroporous ceria (Pd-SAs/3DOM-CeO₂) was developed through a facile template-assisted pyrolysis method. The high sp. surface area of 3DOM CeO₂ facilitates the heavily anchoring of Pd SAs, while the introduction of Pd atoms induces the generation of surface oxygen vacancies and prevents the grain growth of CeO₂ support. The Pd-SAs/3DOM-CeO₂ catalyst exhibits excellent activity toward Suzuki coupling reactions for a broad scope of substrates under ambient conditions, and the Pd SAs was stabilized in CeO₂ in long-term catalytic cycles without leaching or aggregating. Theor. calculations indicate that the CeO₂ supported Pd SAs can remarkably reduced the energy barriers of both transmetalation and reductive elimination steps for Suzuki coupling reactions. The strong metal-support interaction contributed to modulating the electronic state and maintaining the stability of Pd SA sites. The work demonstrated an effective strategy to design and synthesize stable single-atom catalysts as well as sheds new light on the origin for enhanced catalysis based on the strong metal-support interactions.

5029-67-4, 2-Iodopyridine can be synthesized from 2-chloropyridine or 2-bromopyridine via treatment with iodotrimethylsilane.
2-Iodopyridine, also known as 2-Iodopyridine, is a useful research compound. Its molecular formula is C5H4IN and its molecular weight is 205 g/mol. The purity is usually 95%.
2-Iodopyridine is a halogenated building block. It is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors
2-Iodopyridine is a white crystalline solid that is soluble in water, alcohol, and ether. The molecule contains a methyl group and two iodine atoms. 2-Iodopyridine has several industrial uses. It acts as a precursor to various pharmaceuticals and agrochemicals. The compound also exhibits insulin resistance properties, which may be related to its ability to bind to the insulin receptor and inhibit insulin signaling. 2-Iodopyridine can also be used for treating cancer because it binds to the DNA of cancer cells, preventing replication and leading to cell death.
2-Iodopyridine is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors., Safety of 2-Iodopyridine

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

Organic iodides are organic compounds containing a carbon-iodine (C-I) bond. 5029-67-4, formula is C5H4IN, Name is 2-Iodopyridine.The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Quality Control of 5029-67-4.

Tani, Tomohiro;Sohma, Yudai;Tsuchimoto, Teruhisa research published 《 Zinc/Indium Bimetallic Lewis Acid Relay Catalysis for Dehydrogenative Silylation/Hydrosilylation Reaction of Terminal Alkynes with Bis(hydrosilane)s》, the research content is summarized as follows. When mixed with two different Lewis acid catalysts of Zn and In, terminal alkynes react with bis(hydrosilane)s to selectively provide 1,1-disilylalkenes from among several possible products, by way of a sequential dehydrogenative silylation/intramol. hydrosilylation reaction. Adding a pyridine base is crucial in this reaction; a switch as a catalyst of the Zn Lewis acid is turned on by forming a Zn-pyridine-base complex. A range of the 1,1-disilylalkenes can be obtained by a combination of aryl and aliphatic terminal alkynes plus aryl-, heteroaryl-, and naphthyl-tethered bis(hydrosilane)s. The 1,1-disilylalkene prepared here is available as a reagent for further transformations by using its C-Si or C:C bond. The former includes Hiyama cross-coupling, Bi-catalyzed ether formation, and iododesilylation; the latter includes double alkylation and epoxidation Mechanistic studies clarified the role of the two Lewis acids: the Zn-pyridine-base complex catalyzes the dehydrogenative silylation as a 1st stage, and, following on this, the In Lewis acid catalyzes the ring-closing hydrosilylation as a 2nd stage, thus leading to the 1,1-disilylalkene.

Quality Control of 5029-67-4, 2-Iodopyridine can be synthesized from 2-chloropyridine or 2-bromopyridine via treatment with iodotrimethylsilane.
2-Iodopyridine, also known as 2-Iodopyridine, is a useful research compound. Its molecular formula is C5H4IN and its molecular weight is 205 g/mol. The purity is usually 95%.
2-Iodopyridine is a halogenated building block. It is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors
2-Iodopyridine is a white crystalline solid that is soluble in water, alcohol, and ether. The molecule contains a methyl group and two iodine atoms. 2-Iodopyridine has several industrial uses. It acts as a precursor to various pharmaceuticals and agrochemicals. The compound also exhibits insulin resistance properties, which may be related to its ability to bind to the insulin receptor and inhibit insulin signaling. 2-Iodopyridine can also be used for treating cancer because it binds to the DNA of cancer cells, preventing replication and leading to cell death.
2-Iodopyridine is a reagent used in the preparation of human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase inhibitors., 5029-67-4.

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