Month: December 2022

Salvador, Maria A. published the artcileDelocalized cationic azo dyes containing a thiazole moiety, Related Products of iodides-buliding-blocks, the publication is Tetrahedron (2008), 64(2), 299-303, database is CAplus.

Several new delocalized cationic azo dyes incorporating a bathochromic thiazole moiety have been prepared in moderate to good yields. The synthesis involved the Knoevenagel condensation of an intermediate azo compound, bearing a terminal formyl group, with methylenic bases generated in situ from benzazolium and quinolinium salts. All dyes display strong absorption around 700 nm and have shown neg. solvatochromic behavior. The possible application of the dyes as sensitizers for photodynamic therapy was briefly discussed.

Tetrahedron published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C12H14IN, Related Products of iodides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Khlopin, N. Ya. published the artcileThe determination of the number of electrons participating in the reduction of stypticin at a dropping mercury electrode. II, Application In Synthesis of 101-29-1, the publication is Zhurnal Obshchei Khimii (1958), 264-7, database is CAplus.

cf. C.A. 52, 8796f. With the aid of polarographic coulometry, it was found that in the reduction process of stypticin at a small Hg electrode two electrons were active. On the basis of the structure of stypticin, this reaction took place at the expense of the double bond of the heterocyclic ring.

Zhurnal Obshchei Khimii published new progress about 101-29-1. 101-29-1 belongs to iodides-buliding-blocks, auxiliary class Pyridine,Iodide,Carboxylic acid,Ketone, name is 2-(3,5-Diiodo-4-oxopyridin-1(4H)-yl)acetic acid, and the molecular formula is C7H5I2NO3, Application In Synthesis of 101-29-1.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reddy, C. B. Rajashekar published the artcileChemoselective oxidation of benzyl, amino and propargyl alcohols to aldehydes and ketones under mild reaction conditions, Application of (2-Amino-5-iodophenyl)methanol, the publication is ChemistryOpen (2015), 4(2), 107-110, database is CAplus and MEDLINE.

An efficient, aerobic, chemoselective and simplified approach for the oxidation of a broad range of benzyl and propargyl alcs. containing diverse functional groups to their corresponding aldehydes and ketones in excellent yields under mild reaction conditions was reported. Optimal yields were obtained at room temperature using 1 mmol substrate, 10 mol% copper(I) iodide, 10 mol% 4-dimethylaminopyridine (DMAP) and 1 mol% 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) in acetonitrile under an oxygen balloon. The catalytic system can be applied even when sensitive and oxidizable groups such as alkynes, amines and phenols are present and also starting materials and products containing such groups were found to be stable under the developed conditions.

ChemistryOpen published new progress about 53279-83-7. 53279-83-7 belongs to iodides-buliding-blocks, auxiliary class Iodide,Amine,Benzene,Alcohol, name is (2-Amino-5-iodophenyl)methanol, and the molecular formula is C7H8INO, Application of (2-Amino-5-iodophenyl)methanol.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Naidu, Shivaji published the artcileCopper-catalyzed tandem reaction in ionic liquid: an efficient reusable catalyst and solvent media for the synthesis of fused poly heterocyclic compounds, HPLC of Formula: 53279-83-7, the publication is RSC Advances (2016), 6(67), 62742-62746, database is CAplus.

A copper catalyzed tandem reaction for the synthesis of therapeutically important pyrrolo-/pyrido[2,1-b] benzo[d][1,3]oxazin-1-ones I (R = H, 7-F, 8-Cl, 6-Cl, 7,8-(OCH₃)₂, etc.; n = 1,2) from 2-aminobenzyl alcs. such as (2-aminophenyl)methanol, (2-amino-5-methylphenyl)methanol, (2-amino-6-chlorophenyl)methanol, etc. using alkynoic acids CC(CH₂)_nCH₂C(O)OH under ligand and base free conditions in the presence of a green solvent medium [bmim]OTf is reported. The catalyst and solvent were successfully recycled and reused.

RSC Advances published new progress about 53279-83-7. 53279-83-7 belongs to iodides-buliding-blocks, auxiliary class Iodide,Amine,Benzene,Alcohol, name is (2-Amino-5-iodophenyl)methanol, and the molecular formula is C7H8INO, HPLC of Formula: 53279-83-7.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Puguan, John Marc C. published the artcileAchieving transmissive-to-black chromism via engineered dual electro-thermoresponsive single-molecule for full modulation of solar transmittance, Related Products of iodides-buliding-blocks, the publication is Chemical Engineering Journal (Amsterdam, Netherlands) (2022), 437(Part_1), 135157, database is CAplus.

Pursuit of complete and null transmissive optical material in smart windows for full control of the intensity and spectrum of incoming solar light has led to the advancement of transmissive-to-black chromism. While most reported transmissive-to-black devices are elec. stimulated, we report here an alternative approach based on dual stimulation of a new dual responsive mol. By integrating asym. viologen onto a newly engineered poly(2-isopropyl-2-oxazoline)-based mol., one can achieve transmissive-to-black chromism. The synergistic effect of its thermochromic and electrochromic response when stimulated simultaneously shows full absorption of the entire visible solar spectrum resulting to a truly black state that is ideal for building facades requiring absolute privacy. Autonomous chromic switchability function is also possible by independently stimulating the material either elec. or thermally where it displays unique colored state of vibrant magenta and a hazy state, resp. Tunability of the material’s overall performance in terms of optical contrast, switching kinetics, coloration efficiency and cyclic stability based on the lattice water concentration was elucidated in this work. Furthermore, the fabricated device displays self-bleaching property and has a short-term “memory” effect that may broaden its potential for other applications.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about 638-45-9. 638-45-9 belongs to iodides-buliding-blocks, auxiliary class Iodide,Aliphatic hydrocarbon chain, name is 1-Iodohexane, and the molecular formula is C6H13I, Related Products of iodides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

More, Pawan P. published the artcileAll-in-one display device with multicolor states derived from NBU-3 MOF/monoalkylated viologen hybrid ionogel material, Application of 1-Iodohexane, the publication is Dyes and Pigments (2021), 109730, database is CAplus.

Recently, metal-organic frameworks (MOFs) have gained considerable attention for electrochromic (EC) applications owing to their improved electrochem. performance and superior processing ability. As a class of well-recognized organic EC materials, viologens are desirable and they are major active EC components for most of the marketed EC devices due to their structural versatility and property tunability. Over the past two decades, extensive efforts have been made to design and synthesize different types of viologen-based materials with enhanced EC properties. Herein, we report fabrication of MOFs and 1-hexyl-[4,4′-bipyridin]-1-ium bis (trifluoromethane sulfonyl) imide [MHV][TFSI] based all-in-one hybrid ionogel as an electrochromic device (ECD). The fabricated ECD showed reversible multicolor property with stability over 2000 cycles. Initially, the ECD showed light yellow color, and subsequently, it changed to light green, blue, and maroon color accordingly. The fabricated ECD displayed fast coloration time(t_c), and bleaching times(t_b) of 4.35 s and 7.72 s, resp., along with a coloration efficiency of 99.14 cm²/C. The performance enhancement mechanisms are also concisely discussed in the present work. This work introduces the novel way to fabricate MOF based electrochromic ionogel (ECIG) ECDs and paves the way to the advancement of electrochromic ionogel-based display devices.

Dyes and Pigments published new progress about 638-45-9. 638-45-9 belongs to iodides-buliding-blocks, auxiliary class Iodide,Aliphatic hydrocarbon chain, name is 1-Iodohexane, and the molecular formula is C6H13I, Application of 1-Iodohexane.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Kumar, Santosh published the artcileFriedel-Crafts-type Reaction of (Het)Arenes with Aldehydes/Ketones under Acid-Free Conditions using Neutral Ionic Liquid: A Convenient Routes to bis(Indolyl)methanes and Beyond, Recommanded Product: 1-Iodohexane, the publication is Asian Journal of Organic Chemistry (2022), 11(3), e202100749, database is CAplus.

Acid-free approach has been demonstrated for Friedel-Crafts-type reaction of (het)arenes with carbonyls using neutral ionic liquid (NIL). Methodol. is enabled to afford a densely functionalized bis(indolyl)methanes in good to excellent yields. This conditions is also compatible to the synthesis of 3,3-di(indol-3-yl)indolin-2-ones, bis(4-hydroxycoumarines) and triarylmethanes (total 40 examples; up to 98% yields). Gram-scale reactions and recycling study were carried out to demonstrate the practicality of present methodol. DFT studies illustrate the catalytic cycle involving simultaneous activation of C=O and indole C-H bond by NIL followed by C-C bond formation.

Asian Journal of Organic Chemistry published new progress about 638-45-9. 638-45-9 belongs to iodides-buliding-blocks, auxiliary class Iodide,Aliphatic hydrocarbon chain, name is 1-Iodohexane, and the molecular formula is C6H13I, Recommanded Product: 1-Iodohexane.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Pardal, A. C. published the artcileSynthesis and spectroscopic characterization of N-alkyl quaternary ammonium salts, typical precursors of cyanines, Product Details of C12H14IN, the publication is Molecules [online computer file] (2002), 7(3), 320-330, database is CAplus.

Title salts I (R = Et, pentyl, hexyl, decyl; X = S, Se, O, CMe₂, CH:CH) were prepared by quaternization of the heterocycles with RI. I, bearing an activated Me group in the 2-position, are typical precursors of cyanine dyes.

Molecules [online computer file] published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C12H14IN, Product Details of C12H14IN.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Heidbrink, Jenny L. published the artcilePolar Effects Control Hydrogen-Abstraction Reactions of Charged, Substituted Phenyl Radicals, Product Details of C7H3BrF3I, the publication is Journal of Physical Chemistry A (2001), 105(33), 7875-7884, database is CAplus.

The rate of hydrogen atom abstraction from tributyltin hydride, benzeneselenol, thiophenol, and THF was measured in the gas phase for charged Ph radicals with different neutral substituents at the meta- or ortho-position. A charged pyridinium substituent (meta or para) allowed the manipulation of the radicals in the Fourier transform ion cyclotron resonance mass spectrometer that was used to carry out the experiments All the reaction rates were found to be similarly affected by substituents on the radical: meta, H < Br ∼ Cl < CN (most reactive); ortho, H < CF₃ ∼ Cl ∼ F. The exptl. observations parallel the transition-state energies calculated for hydrogen abstraction from methanol. However, the calculated reaction exothermicities do not correlate with the reactivity trends. Instead, a correlation exists between the reactivity and electron affinity of the radicals. We conclude that the electron-withdrawing substituents studied here lower the reaction barrier by increasing the polarity of the transition state, without an associated increase in reaction exothermicity. The increase in the electron affinity (ΔEA) of the radical caused by a given substituent provides a sensitive probe for the substituent’s barrier-lowering effect (in the few cases studied in detail, the barrier is lowered by about 10% of ΔEA_v). Another way to lower the barrier involves lowering the ionization energy of the substrate. Indeed, all the radicals follow the reactivity trend of thiophenol > 4-fluorothiophenol > pentafluorothiophenol. This trend reflects the decreasing ionization energies of the three substrates rather than the decreasing reaction exothermicities or increasing homolytic bond-dissociation energies (4-fluorothiophenol > thiophenol > pentafluorothiophenol). Apparently, the polar control overrides the enthalpic control in this case. The results reported for radicals with different distances between the radical site and the charged group suggest that similar substituent effects are expected for neutral Ph radicals, and that the hydrogen abstraction ability of heteroaromatic radicals is likely to be tunable by pH.

Journal of Physical Chemistry A published new progress about 364-12-5. 364-12-5 belongs to iodides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Bromide,Iodide,Benzene, name is 5-Bromo-2-iodobenzotrifluoride, and the molecular formula is C7H3BrF3I, Product Details of C7H3BrF3I.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Dhote, Pawan S. published the artcileInterrupting the [Au]-Catalyzed Nitroalkyne Cycloisomerization: Trapping the Putative α-Oxo Gold Carbene with Benzo[c]isoxazole, Application In Synthesis of 101420-79-5, the publication is Organic Letters, database is CAplus and MEDLINE.

The [Au]-catalyzed nitroalkyne cycloisomerization of 2-alkynylnitrobenzenes such as 2-O₂NC₆H₄CCEt leading to anthranils has been interrupted by possible trapping of the postulated intermediate α-oxo gold carbene with an external nucleophile such as a benzo[c]isoxazole (anthranil). At the outset, this provides a simple synthesis of highly functionalized 3-acyl-(2-formylphenyl)-2H-indazoles such as I with the sequential C-O, C-N, and N-N bond formations. This provides indirect support for the existence of α-oxo gold carbenes in the [Au]-catalyzed internal redox processes of nitroalkynes.

Organic Letters published new progress about 101420-79-5. 101420-79-5 belongs to iodides-buliding-blocks, auxiliary class Nitrile,Nitro Compound,Iodide,Benzene,Benzene Compounds, name is 4-Iodo-3-nitrobenzonitrile, and the molecular formula is C7H3IN2O2, Application In Synthesis of 101420-79-5.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com