Category: iodides-buliding-blocks

Abd El-Aal, R. M. published the artcileSynthesis and physicochemical studies of some new quinolinoxazine pentamethine cyanine dyes, Quality Control of 606-55-3, the publication is Arabian Journal of Chemistry (2017), 10(1), 82-90, database is CAplus.

Polymethine cyanine dyes belong to a well-known class of organic compounds, which have been used in photog. and as information storage in laser technol. A series of novel cyanine dyes were synthesized through the formylation of quinolinium[b,c]1,4-oxazine-chloride salt 1. Reaction of compound 2-chloro-3-formyl-quinolinium[b,c]1,4-oxazine-chloride salt 2 with different molar ratios of 2(4)-Me substituted heterocyclic in basic catalysis afforded the corresponding 2-chloroquinolinium[b,c]1,4-oxazine-chloride salt-3[2(4)]-dimethine (3a-c), quinolinium[b,c]-1,4-oxazinechloride salt-2,3[2(4)]-pentamethine (4a-c) and quinolino[b,c]1,4-oxazine-6yl[2(4)]-monomethine-/2,3[2(4)]-pentamethine cyanine dyes (5a-c) resp. The structure of the dyes was characterized by elemental anal., visible absorption, fluorescence emission, IR, ¹H-NMR and mass spectroscopy. A comparison of the visible absorption maxima between compounds 3b, 4b and 5b showed that asym. mono-pentamethine cyanine dye 5b reveals a bathochromic shift than both dimethine 3b and pentamethine cyanine dyes 4b. The absorption spectra of dyes were investigated in organic solvents. The results indicated that the excitation for their color is a simple charge-transfer from oxygen atom of oxazine nucleus and/or nitrogen atom of pyridine (quinoline) nucleus to N-quaternary salts in di-, penta- and mono-/pentamethine cyanine dyes resp. These dyes showed pos. solvatochromism with increased solvent polarity.

Arabian Journal of Chemistry 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, Quality Control of 606-55-3.

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

Jouanno, Laurie-Anne published the artcileExpeditious Microwave-Assisted Synthesis of 5-Alkoxyoxazoles from α-Triflyloxy Esters and Nitriles, Safety of Ethyl 2-Iodopropionate, the publication is Journal of Organic Chemistry (2012), 77(19), 8549-8555, database is CAplus and MEDLINE.

A rapid and general access to diversely substituted 5-alkoxyoxazoles from easily accessible α-triflyloxy/hydroxy esters and nitriles with good yields (41-76%) is reported. The versatility of the cyclization is shown for a range of substrates with high selectivity toward triflates over tosylates and proved to be compatible with sensitive functional groups. As an illustration of this transformation, the first synthesis of the recently isolated hydroxypyridine Me multijuguinate (I) was achieved in four steps through a hetero Diels-Alder reaction of the 5-alkoxyoxazole II and acrylic acid, followed by a protodecarboxylation reaction.

Journal of Organic Chemistry published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Safety of Ethyl 2-Iodopropionate.

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

Patnaik, Lalit N. published the artcileSolvent effects on the absorption spectra of merocyanine dyes, HPLC of Formula: 606-55-3, the publication is Journal of Solution Chemistry (1994), 23(12), 1317-30, database is CAplus.

Solvent effects on the lowest-energy electronic transitions of 2 merocyanines derived from quinoline were studied using 9 different solvent parameters reported in the literature. Relative merits and deficiencies of different parameters were assessed. From the correlation results, attempts were made to propose a solute-solvent interaction mechanism. For an assorted set of 19 solvents, as well as for a set of 9 hydroxylic solvents, excellent results are obtained with correlation equation involving E_T(30) and Hilderbrand’s solubility parameter δ_H.

Journal of Solution Chemistry 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, HPLC of Formula: 606-55-3.

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

Andrade, Carolina H. published the artcileFragment-based and classical quantitative structure-activity relationships for a series of hydrazides as antituberculosis agents, Recommanded Product: 4-Iodobenzohydrazide, the publication is Molecular Diversity (2008), 12(1), 47-59, database is CAplus and MEDLINE.

Worldwide, tuberculosis (TB) is the leading cause of death among curable infectious diseases. Multidrug-resistant Mycobacterium tuberculosis is an emerging problem of great importance to public health, and there is an urgent need for new anti-TB drugs. In the present work, classical 2D quant. structure-activity relationships (QSAR) and hologram QSAR (HQSAR) studies were performed on a training set of 91 isoniazid derivatives Significant statistical models (classical QSAR, q ² = 0.68 and r ² = 0.72; HQSAR, q ² = 0.63 and r ² = 0.86) were obtained, indicating their consistency for untested compounds The models were then used to evaluate an external test set containing 24 compounds which were not included in the training set, and the predicted values were in good agreement with the exptl. results (HQSAR,; classical QSAR).

Molecular Diversity published new progress about 39115-95-2. 39115-95-2 belongs to iodides-buliding-blocks, auxiliary class Iodide,Hydrazine,Amine,Benzene,Hydrazide,Amide, name is 4-Iodobenzohydrazide, and the molecular formula is C7H7IN2O, Recommanded Product: 4-Iodobenzohydrazide.

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

Andrade, Carolina Horta published the artcileThree-dimensional quantitative structure-activity relationships for a large series of potent antitubercular agents, Name: 4-Iodobenzohydrazide, the publication is Letters in Drug Design & Discovery (2008), 5(6), 377-387, database is CAplus.

Comparative mol. field anal. (CoMFA) studies were conducted on a series of 100 isoniazid derivatives as anti-tuberculosis agents using two receptor-independent structural data set alignment strategies: (1) rigid-body fit, and (2) pharmacophore-based. Significant cross-validated correlation coefficients were obtained (CoMFA(1), q² = 0,75 and CoMFA(2), q² = 0.74), indicating the potential of the models for untested compounds The models were then used to predict the inhibitory potency of 20 test set compounds that were not included in the training set, and the predicted values were in good agreement with the exptl. results.

Letters in Drug Design & Discovery published new progress about 39115-95-2. 39115-95-2 belongs to iodides-buliding-blocks, auxiliary class Iodide,Hydrazine,Amine,Benzene,Hydrazide,Amide, name is 4-Iodobenzohydrazide, and the molecular formula is C7H7IN2O, Name: 4-Iodobenzohydrazide.

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

Markov, Roman V. published the artcileObservation of optical nonlinearity size enhancement in one-dimensional molecular aggregates, Name: 1-Ethyl-2-methylquinolin-1-ium iodide, the publication is Proceedings of SPIE-The International Society for Optical Engineering (2002), 265-269, database is CAplus.

Thin films of mol. aggregates of pseudoisocyanine were obtained. Delocalization length of exciton wave function was measured with an assumption that an absorption line width is defined by disorder induced mixing of the lowest states of the 1-exciton band. Predicted effect of size enhancement of the nonlinear optical properties for mol. aggregates was observed The assumption used to determine the delocalization length coincides with the observed optical nonlinearity size enhancement.

Proceedings of SPIE-The International Society for Optical Engineering 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, Name: 1-Ethyl-2-methylquinolin-1-ium iodide.

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

Wang, Changsheng published the artcileMolecular Wires Comprising π-Extended Ethynyl- and Butadiynyl-2,5-Diphenyl-1,3,4-Oxadiazole Derivatives: Synthesis, Redox, Structural, and Optoelectronic Properties, Recommanded Product: 4-Iodobenzohydrazide, the publication is Journal of the American Chemical Society (2006), 128(11), 3789-3799, database is CAplus and MEDLINE.

2,5-Diphenyl-1,3,4-oxadiazole (OXD) derivatives with terminal ethynyl- I (R = Me₃C, 2-ethylhexyloxy) and butadiynyl- II[R = Me₃C (III), dodecyloxy(IV)] substituents were synthesized in high yields. 2-Methyl-3,5-hexadiyn-2-ol was not exploited previously in the synthesis of terminal butadiynes. Crystals of II are remarkably stable to long-term storage under ambient conditions. The x-ray crystal structure of III reveals that the butadiyne moieties are spatially isolated by the aromatic moieties, which explains the high stability. Two series of derived π-conjugated mols., Donor-(CC)_n-OXD (n = 1, 2) and OXD-(CC)_n-Donor-(CC)_n-OXD (n = 1) [Donor = tetrathiafulvalene (TTF), bithiophene, 9-(4,5-dimethyl-1,3-dithiol-2-ylidene)fluorene, and triphenylamine], were synthesized using Sonogashira reactions and characterized by x-ray crystallog., cyclic voltammetry, and optical absorption/emission spectroscopy. The electron-withdrawing effect of the OXD units is manifested by a pos. shift of the donor oxidation waves in these systems: the butadiynylene spacer (n = 2) further shifts the first oxidation waves by 40-80 mV compared to analogs n = 1. The absorption spectra of TTF-OXD hybrids V and VI are blue-shifted by 80 nm compared to a bithienyl-bridged derivative and are similar to the butadiynyl-OXD building-block III, demonstrating that conjugation is disrupted by a neutral TTF unit. Solutions of the TTF-OXD and 9-(4,5-dimethyl-1,3-dithiol-2-ylidene)fluorene-OXD hybrids, V–VII are only very weakly fluorescent due to quenching from the electron-donor moieties. But the triphenylamine-OXD hybrids analogs are fluorescent; the PLQY’s of the butadiynylene derivatives are lower than those of the ethynylene-bridged analogs.

Journal of the American Chemical Society published new progress about 39115-95-2. 39115-95-2 belongs to iodides-buliding-blocks, auxiliary class Iodide,Hydrazine,Amine,Benzene,Hydrazide,Amide, name is 4-Iodobenzohydrazide, and the molecular formula is C17H18N3NaO3S, Recommanded Product: 4-Iodobenzohydrazide.

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

Sychev, O. F. published the artcileQuantum chemical calculation of charge transfer and quadrupole interaction constants in complexes, Computed Properties of 6443-90-9, the publication is Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya (1975), 39(12), 2675-83, database is CAplus.

The electronic structure of SbCl5.L, SnCl4.L2 (L = MeCN and ClCN), and ICl.Py complexes was calculated by using the CNDO/2 method. From the AO population, the quadrupole interaction constants, charge transfer, and charge distribution were estimated A considerable increase in the electron d. on the Cl atoms of the acceptor mols. was observed in all cases. The charge of the central atom of the acceptor was almost constant in the SbCl3.L and ICl.Py complexes but increased in SnCl4.L2. This was explained by an inaccuracy in the Sn calculation parameters. The calculated and exptl. results of the quadrupole interaction constants were in good agreement. The interaction between I and N (and Cl) atoms in the ICl.py complexes is predominantly caused by the σ orbitals.

Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H7NO, Computed Properties of 6443-90-9.

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

Stoffelbach, Francois published the artcileHow the interplay of different control mechanisms affects the initiator efficiency factor in controlled radical polymerization: An investigation using organometallic Mo^III-based catalysts, Product Details of C5H9IO2, the publication is Journal of Organometallic Chemistry (2007), 692(15), 3133-3143, database is CAplus.

Compound CpMoI₂(iPr₂dad) (iPr₂dad = iPrN=CH-CH=NiPr), obtained by halide exchange from CpMoCl₂(iPr₂dad) and NaI, has been isolated and characterized by EPR spectroscopy, cyclic voltammetry, and X-ray crystallog. Its action as a catalyst in atom transfer radical polymerization (ATRP) and as a spin trap in organometallic radical polymerization (OMRP) of styrene and Me acrylate (MA) monomers has been investigated and compared with that of the dichloro analog. Compound CpMoCl₂(iPr₂dad) catalyzes the ATRP of styrene and MA with low efficiency factors f (as low as 0.37 for MA and Et 2-chloropropionate as initiator), while it irreversibly traps the corresponding growing radical chains under OMRP conditions. On the other hand, compound CpMoI₂(iPr₂dad) has a greater ATRP catalytic activity than the dichloro analog and yields f = 1 for MA and Et 2-iodopropionate as initiator. Under OMRP conditions, it does not irreversibly trap the growing radical chains. This comparison serves to illustrate the general principle that low initiator efficiency factors, sometimes observed in ATRP, may result from the interplay of the ATRP and OMRP mechanisms, when the latter ones involves an irreversible radical trapping process.

Journal of Organometallic Chemistry published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C13H18N2, Product Details of C5H9IO2.

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

Yagi, Yoshiharu published the artcileNew polyhalide complex ions, Recommanded Product: Pyridine Iodochloride complex, the publication is Inorganic and Nuclear Chemistry Letters (1965), 1(1), 21-4, database is CAplus.

Polyhalide complexes of the type A.HICl₂.ICl (A = organic base) were prepared by dissolving a A.HICl₂ complex in 1,2-dichloroethane, adding a 4-5 fold excess of ICl, and diluting the resulting solution with CCl₄. The compounds prepared and their m.ps. are: 2,2′-bp.HICl₂.ICl (65-7°) (bp = bipyridine); 4,4′-Me₃-2,2′-bp.HICl₂.ICl (57-9°); 2,2′-bq.HICl₂.ICl (139-40°) (bq = biquinoline); 1,10-phen.HICl₂.ICl (96.5-7.5°) (phen = phenanthroline); 2,9-Me₂-1,10-phen.HICl₂.ICl (97-8°); 4,7-Me_2-1,10-phen.HICl₂.ICl (114-15°); py.HICl₂.ICl (85-6°); 2,6-lu.HICl₂.ICl (lu = lutidine); and Me₄N.ICl₂.ICl. The last 2 were red-orange oils which, on cooling, solidified to glasses; the others precipitated as orange microcrystalline powders. All are quite stable at room temperature They decomposed slowly by atm. moisture. They are soluble in many organic solvents (except CCl₄), dissociating to A.HICl₂ and ICl. They lose a mole of ICl on heating to ∼100°. Ir data seems to indicate the I₂Cl₃^– ion.

Inorganic and Nuclear Chemistry Letters published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C26H26N4O7, Recommanded Product: Pyridine Iodochloride complex.

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