Category: 3268-21-1

Photo-induced and electronic properties of soluble rigid-rod polyimides was written by Tomikawa, Masao. And the article was included in Recent Research Developments in Polymer Science in 1998.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

A series of fluoroalkyl-substituted pyromellitic dianhydrides were synthesized from 1,2,4,5-tetramethyl-benzene (durene). Soluble rigid-rod polyimides were obtained from the dianhydrides and 4,4′-Diamino-2,2′-bis(trifluoromethyl)biphenyl (PFMB) in phenolic solvents in the presence of isoquinoline catalyst. The polyimides are soluble in N-methyl-2-pyrrolidone (NMP), N,N-dimethylacetamide (DMAc), m-cresol, and other polar solvents, in spite of their rigid-rod structure. UV irradiation induced color changes of the polyimide solutions A new absorption band appeared in the 700 nm region and an ESR signal emerged upon UV-irradiation which are attributed to the anion radical of the diimide moiety in the polyimide, as deduced from the hyperfine structure of the ESR signal. The same radical was detected by electrochem. confirming that the radical was generated by photoinduced charge transfer reaction. The UV-irradiation also causes a decrease in the solution viscosity and this change is reversible. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. 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 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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

A Domino Approach of Heck Coupling for the Synthesis of 灏?Trifluoromethylstyrenes was written by Prakash, G. K. Surya;Krishnan, Hema S.;Jog, Parag V.;Iyer, Anjali P.;Olah, George A.. And the article was included in Organic Letters in 2012.HPLC of Formula: 3268-21-1 This article mentions the following:

A domino approach of Heck coupling was used to synthesize 灏?trifluoromethylstyrene derivatives from iodoarenes and 1-iodo-3,3,3-trifluoropropane in moderate to good yields. This method avoids the use of low-boiling, gaseous reagents such as 3,3,3-trifluoropropene, and additives and phosphines in the catalytic system. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1HPLC of Formula: 3268-21-1).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. The C閳ユ彂 bond is the weakest of the carbon閳ユ従alogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I. This periodic order also follows the atomic radius of halogens and the length of the carbon-halogen bond.HPLC of Formula: 3268-21-1

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

Four-Component Supramolecular Nanorotors was written by Samanta, Soumen K.;Schmittel, Michael. And the article was included in Journal of the American Chemical Society in 2013.Formula: C10H12I2 This article mentions the following:

A family of supramol. four-component nanorotors was quant. self-assembled from two different Zn(II) porphyrins: one representing the stator and the other the rotator with DABCO as an interconnecting axle and Cu(I) ions. Rotational spinning in ROT-1′ occurs at 97,000 s^-1 at 25鎺?but is virtually stopped at -75鎺? The activation vs. binding data suggest that spinning is an intrasupramol. process occurring to >99.9% without dissociation Addition and removal of two further equiv of Cu⁺ reversibly switches the mode of the stochastic rotation between pure 180鎺?and mixed 90鎺?180鎺?steps and reversibly regulates the speed between 97,000 and 閳?0,000 s^-1. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Formula: C10H12I2).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. The C閳ユ彂 bond is the weakest of the carbon閳ユ従alogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I.Formula: C10H12I2

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

Solid-state organic reactions proceeding by pulverization: oxidation and halogenation with iodosobenzene and inorganic solid-supports was written by Sohmiya, Hajime;Kimura, Takahide;Fujita, Mitsue;Ando, Takashi. And the article was included in Tetrahedron in 1998.Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

Pulverization-activation method was employed to accelerate solid-state organic reactions. Crushing and grinding of solid mixtures of hydrogen halide-treated silica gels, iodosobenzene, and organic substrates in the absence of a solvent brought about smooth and rapid reactions to give halogenated and/or oxidized products in good yields. Various sulfides were smoothly converted to sulfonyl chlorides in one step in excellent yields. The surface of silica gel activated by pulverization serves as a reaction field on which reagent mols. can effectively encounter with each other. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. 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. The C閳ユ彂 bond is the weakest of the carbon閳ユ従alogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I.Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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

From an Eight-Component Self-Sorting Algorithm to a Trisheterometallic Scalene Triangle was written by Mahata, Kingsuk;Saha, Manik Lal;Schmittel, Michael. And the article was included in Journal of the American Chemical Society in 2010.Related Products of 3268-21-1 This article mentions the following:

Using motifs from 3-fold completive self-sorting in an eight-component library, the authors report on the design and fabrication of a fully dynamic trisheterometallic scalene triangle, a demanding supramol. structure that complements the so far known triangular structures. The trisheterometallic scalene triangle complexes have the compositions [CuZn(7)(8)(9)](OTf)₂(PF₆) and [CuHg(7)(8)(9)](ClO₄)₂(PF₆) (7 = (5-(4-(2,9-bis(2,6-dimethoxyphenyl)-1,10-phenanthrolin-3-ylethynyl)phenyl)-10,15,20-trimesitylporphyrinato)zinc, 8 = 4′-(4-(1,10-phenanthrolin-3-ylethynyl)phenyl)-2,2′:6′,2”-terpyridine, 9 = 2-(4-bromo-2,3,5,6-tetramethylphenyl)-9-mesityl-3-((4-(pyridin-4-ylethynyl)-2,3,5,6-tetramethylphenyl)ethynyl)-1,10-phenanthroline). In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Related Products of 3268-21-1).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. Polyiodoorganic compounds are sometimes employed as X-ray contrast agents, in fluoroscopy, a type of medical imaging. This application exploits the X-ray absorbing ability of the heavy iodine nucleus.Related Products of 3268-21-1

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

Oxidative displacement of halogen from alkyl halides by phenyliodine(III) dicarboxylates was written by Gallos, John;Varvoglis, Anastasios. And the article was included in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) in 1983.Reference of 3268-21-1 This article mentions the following:

The reaction of alkyl iodides with aryliodine(III) dicarboxylates gave mainly esters derived through substitution of iodine by an acyloxy group, together with, in some cases, α-iodoalkyl esters. E.g., reaction of PhI(O₂CCF₃)₂ with Me₂CHI in EtOH-free CHCl₃ in the dark at room temperature for 2-8 h gave F₃CCO₂CHMe₂, quant. Reactive bromides and chlorides reacted similarly. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Reference of 3268-21-1).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. Polyiodoorganic compounds are sometimes employed as X-ray contrast agents, in fluoroscopy, a type of medical imaging. This application exploits the X-ray absorbing ability of the heavy iodine nucleus.Reference of 3268-21-1

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

Simple method for the synthesis of iodomethylbenzenes was written by Merkushev, E. B.;Sedov, A. M.;Simakhina, N. D.. And the article was included in Zhurnal Organicheskoi Khimii in 1978.Recommanded Product: 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

P-xylene, mesitylene, durene and C₆Me₅H were treated with iodine, HNO₃ and H₂SO₄ in HOAc to give 87% 2,5-Me₂C₆H₃I and 85% 2,5-Me₂C₆H₂I₂-1,4, 88% 2,4,6-Me₃C₆H₂I, 80% 2,4,6-Me₃C₆HI₂-1,3 and 63% 1,3,5-Me₃C₆I₃, 100% 2,3,5,6-Me₄C₆HI and 88% 1,4-I₂C₆Me₄, and 87% C₆Me₅I, resp., depending on the temperature and amount of HNO₃ and H₂SO₄ used. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Recommanded Product: 1,4-Diiodo-2,3,5,6-tetramethylbenzene).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Iodide-containing intermediates are common in organic synthesis, because of the easy formation and cleavage of the C–I bond. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Recommanded Product: 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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

Triarylboron-based fluorescent conjugated microporous polymers was written by Liu, Xiaoming;Zhang, Yuwei;Li, He;A, Sigen;Xia, Hong;Mu, Ying. And the article was included in RSC Advances in 2013.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

Novel triarylboron-based conjugated microporous polymers (BCMPs) were successfully synthesized and characterized, which are insoluble in common organic solvents and water, and can keep stable up to 310 °C under a nitrogen atm. According to the nitrogen physisorption isotherms, the Brunauer-Emmett-Teller sp. surface area values for these porous materials vary between 815 and 911 m² g^-1. Two polymer frameworks display good carbon dioxide uptake capacity at 273 K and 1 bar. These materials might find applications in organic electronics and sensing technologies. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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

Selective and effective iodination of alkyl-substituted benzenes with elemental iodine activated by selectfluor F-TEDA-BF₄ was written by Stavber, Stojan;Kralj, Petra;Zupan, Marko. And the article was included in Synlett in 2002.Reference of 3268-21-1 This article mentions the following:

Selective direct introduction of an I atom into alkyl-substituted benzene derivatives was effectively achieved by reaction of target mols. with elemental I₂ in the presence of 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (Selectfluor F-TEDA-BF₄). The number of I atoms introduced could be modulated by the molar ratio between substrate, I₂ and F-TEDA-BF₄. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Reference of 3268-21-1).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics. Organoiodine lubricants can be used with titanium, stainless steels, and other metals which tend to seize up with conventional lubricants: organoiodine lubricants can be used in turbines and spacecraft, and as a cutting oil in machining.Reference of 3268-21-1

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

1,3-Diiodo-5,5-dimethylhydantoin: an efficient reagent for iodination of aromatic compounds was written by Chaikovskii, V. K.;Filimonov, V. D.;Funk, A. A.;Skorokhodov, V. I.;Ogorodnikov, V. D.. And the article was included in Russian Journal of Organic Chemistry in 2007.Name: 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

1,3-Diiodo-5,5-dimethylhydantoin (I) in organic solvents successfully iodinates alkylbenzenes, aromatic amines, and Ph ethers. The reactivity of electrophilic iodine is controlled by the acidity of the medium. Superelectrophilic iodine, generated upon dissolution of I in sulfuric acid, readily reacts with electron-deficient arenes at 0 to 20° with formation of the corresponding iodo derivatives in good yields. The structure of electrophilic iodine species generated from I in sulfuric acid is discussed. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Name: 1,4-Diiodo-2,3,5,6-tetramethylbenzene).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides are organic compounds containing a carbon-iodine (C-I) bond. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Organoiodine lubricants can be used with titanium, stainless steels, and other metals which tend to seize up with conventional lubricants: organoiodine lubricants can be used in turbines and spacecraft, and as a cutting oil in machining.Name: 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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