Log in

Relevant bibliographies by topics / 1-methylimidazole / Journal articles

To see the other types of publications on this topic, follow the link: 1-methylimidazole.

Journal articles on the topic '1-methylimidazole'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic '1-methylimidazole.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bélanger, S., and A. L. Beauchamp. "(1-Methylimidazole-N3)triphenylboron." Acta Crystallographica Section C Crystal Structure Communications 54, no. 11 (November 15, 1998): IUC9800057. http://dx.doi.org/10.1107/s0108270198099223.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Purygin, Pyotr P., Viktoriya D. Fedotova, Vitaly Yu Alekseev, and Yury P. Zarubin. "Synthesis and study of the reactivity of 1,1'-oxalyl di(2-methylimidazole) in reactions with N-nucleophiles." Butlerov Communications 64, no. 10 (October 31, 2020): 136–45. http://dx.doi.org/10.37952/roi-jbc-01/20-64-10-136.

Full text

Abstract:

This article describes the synthesis of 1,1'-oxalyl di(2-methylimidazole), which was obtained in two stages. At the first stage of the synthesis, 1-trimethylsilyl-2-methylimidazole and oxalyl chloride were obtained. At the second stage of the synthesis, the target product was obtained by reacting 1-trimethylsilyl-2-methylimidazole with oxalyl chloride. The product was a dark crystalline substance, the yield of the final product was 83%. The structure of 1,1'-oxalyl di(2-methylimidazole) was confirmed by IR and 1H NMR spectroscopy. In the IR spectra, characteristic absorption bands were found, confirming the presence of the corresponding functional groups in the structure of the compound, in the 1H NMR spectrum, proton signals with characteristic chemical shifts for the corresponding functional groups were found. The PASS online software predicted the types of biological activity of the compound under study. The most probable possibilities of application in the treatment of urological diseases, diabetes mellitus, staphylococcal, oncological diseases, antiaggregatory action. For the 1,1'-oxalyl di(2-methylimidazole) molecule, 6 conformers were found, which were three pairs of enantioconformers in the Molecular Operating Environment 2009.10 software, for which the electrostatic potential, nucleophilic and electrophilic susceptibility surfaces were calculated in the SCIGRESS Modeling 3.1.4 software. It was shown that the interaction with nucleophilic reagents is most typical for the 1,1'-oxalyl di(2-methylimidazole) molecule. Calculations of the potential energy of the conformers of 1,1'-oxalyl di(2-methylimidazole) molecules have been carried out. Using 1,1'-oxalyl di(2-methylimidazole), the syntheses of acetanilide, benzanilide and diethylformamide were carried out. These syntheses were carried out in order to test the reactivity and the possibility of amide-type bond formation upon activation of the carboxyl group in carboxylic acids. The reactions were carried out in one stage without isolation of the intermediate 2-methylimidazolide of the corresponding carboxylic acid. In this case, the proposed reaction mechanism should be two-stage. Possible structures of reactants, transition states, and reaction products in the interaction of 1,1'-oxalyl di(2-methylimidazole) with carboxylic acids and amines have been calculated by methods of computational chemistry.

APA, Harvard, Vancouver, ISO, and other styles

3

Oberhausen, K. J., W. D. Easley, J. F. Richardson, and R. M. Buchanan. "Structure of {bis[(1-methylimidazol-2-yl)methyl]amine}(1-methylimidazole)copper(II) diperchlorate." Acta Crystallographica Section C Crystal Structure Communications 47, no. 10 (October 15, 1991): 2037–40. http://dx.doi.org/10.1107/s010827019100344x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Guan, Ye, Douglas R. Powell, and George B. Richter-Addo. "Crystal structure of bis(1-methyl-1H-imidazole-κN3)(5,10,15,20-tetraphenylporphyrinato-κ4N)iron(II)–1-methyl-1H-imidazole (1/2)." Acta Crystallographica Section E Crystallographic Communications 71, no. 3 (February 11, 2015): m57—m58. http://dx.doi.org/10.1107/s2056989015002364.

Full text

Abstract:

The title compound, [Fe(C44H28N4)(C4H6N2)2]·2C4H6N2, is a six-coordinate FeII–porphyrinate complex with the metal located on a center of inversion and coordinated by two axial 1-methylimidazole ligands; the complex crystallizes as a 1-methylimidazole disolvate. The 1-methylimidazole group bonded to the FeIIatom [occupancy ratio 0.789 (4):0.211 (4)] and the unbound 1-methylimidazole molecule [0.519 (4):0.481 (4)] were disordered. The average Fe—N(porphyrinate) bond length is 1.998 (3) Å and the axial Fe—N(imidazole) bond length is 1.9970 (12) Å. In the crystal, molecules are linked into a three-molecule aggregate by two weak C—H...N interactions.

APA, Harvard, Vancouver, ISO, and other styles

5

Musie, Ghezai T., Xiaobao Li, and Douglas R. Powell. "Dichlorobis(1-methylimidazole)zinc(II)." Acta Crystallographica Section E Structure Reports Online 60, no. 4 (March 27, 2004): m471—m472. http://dx.doi.org/10.1107/s1600536804006579.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Frye, Brian C., Mark S. Mashuta, Christopher S. Mullins, Craig A. Grapperhaus, and Robert M. Buchanan. "Ethyl 1-methylimidazole-2-carboxylate." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (March 25, 2006): o1548—o1549. http://dx.doi.org/10.1107/s1600536806010038.

Full text

Abstract:

The title compound, C7H10N2O2, crystallizes as a nearly planar molecule. The carboxyethyl group is twisted by 4.43 (14)° relative to the plane that includes the imidazole group. The carbonyl unit of the carboxyethyl group is oriented anti to the N-methyl group of the imidazole.

APA, Harvard, Vancouver, ISO, and other styles

7

Phillips, Brian T., David A. Claremon, and Sandor L. Varga. "Preparation of 5-Substituted 2-Mercapto-1-methylimidazoles. Direct Metalation of 2-Mercapto-1-methylimidazole." Synthesis 1990, no. 09 (1990): 761–63. http://dx.doi.org/10.1055/s-1990-27007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Farah, Salim F., and Robert A. McClelland. "Preparation and reactions of bromo-2-nitro- and bromo-2-aminoimidazoles." Canadian Journal of Chemistry 71, no. 4 (April 1, 1993): 427–32. http://dx.doi.org/10.1139/v93-063.

Full text

Abstract:

Treatment of 1-methyl-2-nitroimidazole with bromine in water resulted in rapid dibromination to give 4,5-dibromo-1-methyl-2-nitroimidazole. In dioxane, the bromination was slower, and could be controlled to give 4-bromo-1-methyl-2-nitroimidazole 5 and 5-bromo-1-methyl-2-nitroimidazole 6 in a 4:1 ratio. In an attempt to displace the bromine, the monobromo compounds were treated with cysteamine hydrochloride. In each case the nitro group was displaced instead, the 4-bromo 5 resulting in 2-[(2-aminoethyl)thio]-4-bromo-1-methylimidazole 9 as sole product, and the 5-bromo 6 giving two products identified as the monosubstituted 2-[(2-aminoethyl)thio]-5-bromo-1-methylimidazole 13 and the disubstituted 2,5-bis[2-(aminoethyl)thio]-1-methylimidazole 12. The latter product forms by further reaction of the former and was the sole material observed at long reaction times. A fraction of 12 may also originate from an initial displacement of bromine giving 5-[(2-aminoethyl)thio]-1-methyl-2-nitroimidazole 14, although this cannot be observed due to a rapid further displacement of its nitro group. The bromonitroimidazoles 5 and 6 were reduced to 4-bromo-2-amino-1-methylimidazole 25 and 5-bromo-2-amino-1-methylimidazole 26 with Zn/HCl. On reflux in water, in the presence or absence of cysteamine hydrochloride, these undergo a protodebromination resulting in the same product, 2-amino-1-methylimidazole 17. In D2O the 4-bromo isomer was demonstrated to react specifically to give 2-amino-4-deuterio-1-methylimidazole 27. Attempted preparation of the bromoaminoimidazoles 25 and 26 by bromination of 2-amino-1-methylimidazole in water resulted in the clean formation of cis and trans 2-amino-4,5-dihydro-4,5-di-hydroxyimidazolium ions 18.

APA, Harvard, Vancouver, ISO, and other styles

9

Shapiro, Gideon, and Martin Marzi. "Synthesis of 2,5-dilithio-1-methylimidazole." Tetrahedron Letters 34, no. 21 (May 1993): 3401–4. http://dx.doi.org/10.1016/s0040-4039(00)79166-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Ballard, C. Eric. "Green Oxidative Homocoupling of 1-Methylimidazole." Journal of Chemical Education 90, no. 10 (August 27, 2013): 1368–72. http://dx.doi.org/10.1021/ed200890f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Zhao, Juan. "Diiodidobis(1-methylimidazole-κN3)cadmium(II)." Acta Crystallographica Section E Structure Reports Online 64, no. 10 (September 24, 2008): m1320. http://dx.doi.org/10.1107/s1600536808030225.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Jiang, Bo, and Li-Sheng Wang. "Solubilities of 1-Hexyl-3-methylimidazole Nitrate and 1-Octyl-3-methylimidazole Nitrate in Selected Solvents." Journal of Chemical & Engineering Data 56, no. 12 (December 8, 2011): 4371–75. http://dx.doi.org/10.1021/je200151j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

PHILLIPS, B. T., D. A. CLAREMON, and S. L. VARGA. "ChemInform Abstract: Preparation of 5-Substituted 2-Mercapto-1-methylimidazoles. Direct Metalation of 2-Mercapto-1-methylimidazole." ChemInform 22, no. 3 (August 23, 2010): no. http://dx.doi.org/10.1002/chin.199103169.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Panosyan, Francis B., and Ian WJ Still. "An efficient route to 5-iodo-1-methylimidazole: synthesis of xestomanzamine A." Canadian Journal of Chemistry 79, no. 7 (July 1, 2001): 1110–14. http://dx.doi.org/10.1139/v01-092.

Full text

Abstract:

An efficient and practical route to C-5 functionalized N-methylated imidazoles is reported. 5-Iodo-1-methylimidazole was synthesized in four steps from imidazole, with complete regiospecificity, in 73% overall yield. The synthesis of xestomanzamine A, a marine natural product isolated in 1995 from an Okinawan sponge of Xestospongia sp., has been achieved using 5-iodo-1-methylimidazole in a modified Grignard reaction with a β-carboline ester moiety, in an overall yield of 59% based upon imidazole and 53% based upon tryptamine.Key words: xestomanzamine A, 5-iodo-1-methylimidazole, methyl β-carboline-1-carboxylate.

APA, Harvard, Vancouver, ISO, and other styles

15

Laus, Gerhard, Klaus Wurs, Volker Kahlenberg, and Herwig Schottenberger. "Bromination of 1-Hydroxyimidazoles. Synthesis and Crystal Structures." Zeitschrift für Naturforschung B 67, no. 4 (April 1, 2012): 354–58. http://dx.doi.org/10.1515/znb-2012-0409.

Full text

Abstract:

Bromination of 1-hydroxyimidazole 3-oxide and 1-hydroxy-2-methylimidazole 3-oxide using bromine in acetic acid gave 2-bromo-1,3-dihydroxyimidazole hydrobromide and 4,5-dibromo-1,3-dihydroxy- 2-methylimidazole hydrobromide, respectively. In contrast, bromination in aqueous mixture (acetic acid, methanol, dimethylformamide, tetrahydrofuran) yielded 2,4,5-tribromo-1-hydroxyimidazole. Crystal structures of four compounds were determined by X-ray diffraction.

APA, Harvard, Vancouver, ISO, and other styles

16

Laus, Gerhard, Alexander Schwärzler, Gino Bentivoglio, Michael Hummel, Volker Kahlenberg, Klaus Wurst, Elka Kristeva, et al. "Synthesis and Crystal Structures of 1-Alkoxy-3-alkylimidazolium Salts Including Ionic Liquids, 1-Alkylimidazole 3-oxides and 1-Alkylimidazole Perhydrates." Zeitschrift für Naturforschung B 63, no. 4 (April 1, 2008): 447–64. http://dx.doi.org/10.1515/znb-2008-0411.

Full text

Abstract:

AbstractFunctionalized quaternary imidazolium salts were prepared with the intention to obtain new ionic liquids (ILs). Thus, more than forty 3-alkoxy-1-alkylimidazolium salts, 3-alkoxy-1-alkyl-2-methylimidazolium salts, 1-methylimidazole 3-oxide and 1,2-dimethylimidazole 3-oxide as well as their salts, 1,3-dihydroxyimidazolium salts and 1,3-dihydroxy-2-methylimidazolium salts were synthesized and characterized by spectroscopy and, to a limited extent, by viscosity and conductivity measurements. Results of fourteen single crystal X-ray structure determinations are reported, among them also the parent compounds 1-hydroxyimidazole 3-oxide and 1-hydroxy-2-methylimidazole 3- oxide. Selective debenzylation of 1-benzyloxy-3-methyl imidazolium salts and mono-demethoxylation of 1,3-dimethoxyimidazolium salts were achieved by hydrogenolysis. In addition, a crystalline semiperhydrate of 1,2-dimethylimidazole was characterized. Furthermore, an addition compound of 1-methylimidazole 3-oxide with tris(2-thienyl)borane and a silver carbene complex derived from 1-benzyloxy-3-methylimidazolium hexafluorophosphate was crystallized and characterized.

APA, Harvard, Vancouver, ISO, and other styles

17

Purygin, Pyotr P., Alina V. Shargalo, Konstantin V. Milyutin, Yury P. Zarubin, and Olga B. Grigoryeva. "Synthesis, structure and reactivity of oxalyl di(4-methylimidazole)." Butlerov Communications 59, no. 7 (July 31, 2019): 122–27. http://dx.doi.org/10.37952/roi-jbc-01/19-59-7-122.

Full text

Abstract:

The article describes a two-step method for the synthesis of oxalyl di(4-methylimidazole) from 4(5)-methylimidazole through 1-trimethyl-4-methylimidazole followed by interaction with oxalyl chloride; the yield of the final product is 89%. The kinetics of hydrolysis, alcoholysis, and aminolysis of oxalyl di(4-methylimidazole) in acetonitrile – water (9 : 1), acetonitrile – methanol (9 : 1), acetonitrile – diethylamine (9 : 1) at 25 °C was studied. To study the thermodynamic features of the reactions to obtain this compound in the Spartan’14 1.1.4 program, a number of thermodynamic characteristics were determined that determine the spontaneous and exothermic nature of the process. The data obtained make it possible to select the optimal conditions for the synthesis of oxalyl di(4-methylimidazole) and to draw a conclusion about its low stability in media containing nucleophiles. Possible conformers were found for the oxalyl di(4-methylimidazole) molecule in the Molecular Operating Environment 2014.0901 program, for which nucleophilic susceptibility surfaces were calculated in the SCIGRESS Modeling 3.1.4 program. It was shown that the most reactive conformers in which carbonyl groups are minimally screened by fragments of 4-methylimidazole. The structure of oxalyl di(4-methylimidazole) was confirmed by IR and 1H NMR spectroscopy. Characteristic absorption bands were found in the IR spectra, confirming the presence of the corresponding functional groups in the structure of the compound, and proton signals with characteristic chemical shifts for the corresponding functional groups were detected in 1H NMR spectra. In the PASS Professional 2007 program, the most probable types of biological activity of the test compound were predicted. The most significant types of biological activity are in relation to urological diseases, antiseborrheic effect, stimulator of renal function, stimulator of leukopoiesis.

APA, Harvard, Vancouver, ISO, and other styles

18

Chen, X. M., X. C. Huang, Z. T. Xu, and X. Y. Huang. "Tetrakis(1-methylimidazole-N3)zinc(II) Diperchlorate." Acta Crystallographica Section C Crystal Structure Communications 52, no. 10 (October 15, 1996): 2482–84. http://dx.doi.org/10.1107/s0108270196007706.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Rybakov, Victor B., Eugene V. Babaev, and Eugene N. Belykh. "2-Amino-5-(4-chlorophenyl)-1-methylimidazole." Acta Crystallographica Section E Structure Reports Online 58, no. 2 (January 11, 2002): o126—o128. http://dx.doi.org/10.1107/s1600536802000284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Verevkin, Sergey P., Dzmitry H. Zaitsau, Vladimir N. Emel’yanenko, Yauheni U. Paulechka, Andrey V. Blokhin, Ala B. Bazyleva, and Gennady J. Kabo. "Thermodynamics of Ionic Liquids Precursors: 1-Methylimidazole." Journal of Physical Chemistry B 115, no. 15 (April 21, 2011): 4404–11. http://dx.doi.org/10.1021/jp201752j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Gayfullina, Rezeda, Sirpa Jääskeläinen, Igor O. Koshevoy, and Pipsa Hirva. "Activation of the Cyano Group at Imidazole via Copper Stimulated Alcoholysis." Inorganics 7, no. 7 (July 9, 2019): 87. http://dx.doi.org/10.3390/inorganics7070087.

Full text

Abstract:

Reactions of 4,5-dicyano-1-methylimidazole with CuX2 (X = Cl, Br) in alcohol solvents (ethanol and methanol) resulted in the formation of Cu(II) carboximidate complexes [CuCl2(5- cyano-4-C(OEt)N-1-methylimidazole)(EtOH)] (1), [Cu2(µ-Cl)2Cl2(5-cyano-4-C(OMe)N-1-methylimidazole)2] (2), [Cu2(µ-Br)2Br2(5-cyano-4-C(OMe)N-1-methylimidazole)2] (3), and [Cu2(µ-Br)2Br2(5-cyano-4-C(OEt)N-1-methylimidazole)2] (4). The structures were determined by the X-ray crystallographic method, and further spectroscopic and computational methods were employed to explain the structural features. The solvent contributed to the alcoholysis reaction of the cyano group, as the result of which the ligand coordinated to the metal center in bidentate mode forming a five-membered chelating ring. In 1, the solvent also acts as an additional ligand, which coordinates to the metal center of a monomeric complex. In compounds 2–4, two halogen ligands link the metal atoms forming dihalo-bridged copper dimers. The infrared absorption characteristics were verified by simulation of the infrared spectra at the density functional theory level. In addition, the electronic absorption characteristics were explained by simulation of the UV–Vis spectra using the TD-DFT method. Molecular modelling at the DFT level was performed to study the effects of halogen type and steric hindrance of the alkoxy groups in forming the copper(II) complexes.

APA, Harvard, Vancouver, ISO, and other styles

22

Ramos Silva, Manuela, Vânia M. Moreira, Cláudia Cardoso, Ana Matos Beja, and Jorge A. R. Salvador. "3-Oxoandrosta-4,6-dien-17β-yl 2-methyl-1H-imidazole-1-carboxylate and 3-oxo-5α-androst-17β-yl 2-methyl-1H-imidazole-1-carboxylate: C—H...π and π–π intermolecular interactions." Acta Crystallographica Section C Crystal Structure Communications 65, no. 3 (February 7, 2009): o88—o91. http://dx.doi.org/10.1107/s0108270109003278.

Full text

Abstract:

The title compounds, C24H30N2O3, (I), and C24H34N2O3, (II), both contain an androstane backbone and a 2-methylimidazole-1-carboxylate moiety at the 17-position. Compound (I) contains two symmetry-independent molecules (denoted 1 and 2), while compound (II) contains just one molecule in the asymmetric unit. The C—C—O—C torsion angle that reflects the twisting of the 2-methylimidazole-1-carboxylate moiety from the mean steroid plane is 143.1 (2)° for molecule 1 of (I), 73.1 (3)° for molecule 2 of (I) and 86.63 (17)° for (II). The significance of this study lies in its observation of significant differences in both molecular conformation and supramolecular aggregation between the molecules of the title compounds. The solid-state conformations compared with those obtained theoretically fromab initiomethods for the isolated molecules show large differences, especially in the orientation of the methylimidazole substituent.

APA, Harvard, Vancouver, ISO, and other styles

23

Langer, Vratislav, Eva Scholtzová, Dalma Gyepesová, Mária Kohútová, and Aladár Valent. "(1-Methylimidazole)(N-salicylidene-rac-glutamato)copper(II)." Acta Crystallographica Section E Structure Reports Online 59, no. 12 (November 29, 2003): m1181—m1183. http://dx.doi.org/10.1107/s1600536803026424.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Yang, S. P., L. S. Long, X. M. Chen, and L. N. Ji. "Dichlorobis(2-hydroxymethyl-1-methylimidazole-N3)zinc(II)." Acta Crystallographica Section C Crystal Structure Communications 55, no. 6 (June 15, 1999): 869–71. http://dx.doi.org/10.1107/s0108270199002309.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Frampton, Christopher S., James I. Murray, and Alan C. Spivey. "Crystal structure of 1-methylimidazole 3-oxide monohydrate." Acta Crystallographica Section E Crystallographic Communications 73, no. 3 (February 14, 2017): 372–74. http://dx.doi.org/10.1107/s2056989017002079.

Full text

Abstract:

1-Methylimidazole 3-N-oxide (NMI-O) crystallizes as a monohydrate, C4H6N2O·H2O, in the monoclinic space groupP21withZ′ = 2 (moleculesAandB). The imidazole rings display a planar geometry (r.m.s. deviations = 0.0008 and 0.0002 Å) and are linked in the crystal structure into infinite zigzag strands of ...NMI-O(A)...OH2...NMI-O(B)...OH2... units by O—H...O hydrogen bonds. These chains propagate along theb-axis direction of the unit cell.

APA, Harvard, Vancouver, ISO, and other styles

26

Brennan, T. D., and W. R. Scheidt. "Structural investigation of (1-methylimidazole)-2,3,7,8,12,13,17,18-octaethylporphinatozinc(II)." Acta Crystallographica Section C Crystal Structure Communications 44, no. 3 (March 15, 1988): 478–82. http://dx.doi.org/10.1107/s0108270187011399.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Murray, James. "Preparation of 1-methylimidazole-N-oxide (NMI-O)." Organic Syntheses 93 (2016): 331–40. http://dx.doi.org/10.15227/orgsyn.093.0331.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Anastas, Paul T., Kunio Kano, and Jean-Pierre Anselme. "4,5-diphenyl-1-methylimidazole: An undergraduate laboratory experiment." Journal of Chemical Education 62, no. 6 (June 1985): 515. http://dx.doi.org/10.1021/ed062p515.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Aparici Plaza, Luis, Katarzyna Baranowska, and Barbara Becker. "Hexakis(1-methylimidazole-κN3)iron(II) dichloride dihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 9 (August 9, 2006): m2077—m2079. http://dx.doi.org/10.1107/s160053680603042x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

SHAPIRO, G., and M. MARZI. "ChemInform Abstract: Synthesis of 2,5-Dilithio-1-methylimidazole." ChemInform 24, no. 44 (August 20, 2010): no. http://dx.doi.org/10.1002/chin.199344171.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Jacob, David�S, Volker Kahlenberg, Klaus Wurst, Leonid�A Solovyov, Israel Felner, Linda Shimon, Hugo�E Gottlieb, and Aharon Gedanken. "Sonochemical Reaction of [Fe(CO)5] with 1-Methylimidazole in An Ionic Liquid: Formation of [(1-Methylimidazole)6FeII](PF6)2." European Journal of Inorganic Chemistry 2005, no. 3 (February 2005): 522–28. http://dx.doi.org/10.1002/ejic.200400711.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Dehvari, Fatemeh, and Alireza Hassanabadi. "One-pot synthesis of 1-Methylimidazol-2-yl N-Aroyldithiocarbamates from 2-Mercapto-1-Methylimidazole, Ammonium Thiocyanate and Aroyl Chlorides." Journal of Chemical Research 39, no. 8 (August 2015): 462–63. http://dx.doi.org/10.3184/174751915x14380898897780.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Firoz Khan, Mohammad, Ridwan Bin Rashid, Shahidul M. Islam, and Mohammad A. Rashid. "Computational Study of Geometry, Solvation Free Energy, Dipole Moment, Polarizability, Hyperpolarizability and Molecular Properties of 2-Methylimidazole." Sultan Qaboos University Journal for Science [SQUJS] 21, no. 2 (December 1, 2016): 89. http://dx.doi.org/10.24200/squjs.vol21iss2pp89-101.

Full text

Abstract:

Ab initio calculations were carried out to study the geometry, solvation free energy, dipole moment, molecular electrostatic potential (MESP), Mulliken and Natural charge distribution, polarizability, hyperpolarizability, Natural Bond Orbital (NBO) energetic and different molecular properties like global reactivity descriptors (chemical hardness, softness, chemical potential, electronegativity, electrophilicity index) of 2-methylimidazole. B3LYP/6-31G(d,p) level of theory was used to optimize the structure both in the gas phase and in solution. The solvation free energy, dipole moment and molecular properties were calculated by applying the Solvation Model on Density (SMD) in four solvent systems, namely water, dimethylsulfoxide (DMSO), n-octanol and chloroform. The computed bond distances, bond angles and dihedral angles of 2-methylimidazole agreed reasonably well with the experimental data except for C(2)-N(1), C(4)-C(5) and N(1)-H(7) bond lengths and N(1)-C(5)-C(4) bond angle. The solvation free energy, dipole moment, polarizability, first order hyperpolarizability, chemical potential, electronegativity and electrophilicity index of 2-methylimidazole increased on going from non-polar to polar solvents. Chemical hardness also increased with increasing polarity of the solvent and the opposite relation was found in the case of softness. These results provide better understanding of the stability and reactivity of 2-methylimidazole in different solvent systems.

APA, Harvard, Vancouver, ISO, and other styles

34

Wang, Haimang, Xuehong Wei, and Jianfeng Li. "Synthesis and characterization of six-coordinate iron(II/III) 5,10,15,20-tetrakis(pentafluorophenyl) porphyrinato complexes with non-hindered imidazole ligands." Journal of Porphyrins and Phthalocyanines 22, no. 09n10 (August 21, 2018): 953–64. http://dx.doi.org/10.1142/s1088424618500530.

Full text

Abstract:

Four bis-imidazole iron(II/III) 5,10,15,20-tetrakis(pentafluorophenyl)porphyrinato (TFPP) complexes, [Fe(TFPP)(1-MeIm)[Formula: see text]], [Fe(TFPP)(1-VinylIm)[Formula: see text]], [Fe(TFPP)(4-MeHIm)[Formula: see text]]Cl and [Fe(TFPP)(1-EtIm)[Formula: see text]]BF[Formula: see text] (1-MeIm [Formula: see text] 1-methylimidazole, 1-VinylIm [Formula: see text] 1-vinylimidazole, 4-MeHIm [Formula: see text] 4-methylimidazole and 1-EtIm [Formula: see text] 1-ethylimidazole) were synthesized and characterized by single-crystal X-ray and UV-vis spectroscopy. A negative correlation is found between the absolute imidazole orientation ([Formula: see text] and the Fe–N[Formula: see text] distance for the [Fe(II)(Porph)(Im)[Formula: see text]] (Im [Formula: see text] 1-MeIm or 4-MeHIm) complexes where the smaller [Formula: see text] angle corresponds to a longer axial distance. Hydrogen bonding, which might affect the orientations of the axial imidazoles is found for Fe(TFPP)(4-MeHIm)[Formula: see text]]Cl (A and B). The autoreduction of [Fe(III)(TFPP)]Cl to [Fe(II)(TFPP)(1-MeIm)[Formula: see text]] with 1-methylimidazole has been monitored by UV-vis spectroscopic titration.

APA, Harvard, Vancouver, ISO, and other styles

35

Papánková, Blažena, Ingrid Svoboda, and Hartmut Fuess. "Bis(acetato-κO)diaquabis(1-methylimidazole-κN3)cobalt(II)." Acta Crystallographica Section E Structure Reports Online 62, no. 8 (July 26, 2006): m1916—m1918. http://dx.doi.org/10.1107/s1600536806028029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Adib, Mehdi, Bagher Mohammadi, Mohammad Mahdavi, Alireza Abbasi, and Mahdi Kesheh. "1-Methylimidazole-Catalyzed Regioselective Synthesis of Highly Substituted Benzenes." Synlett 2007, no. 16 (October 2007): 2497–500. http://dx.doi.org/10.1055/s-2007-986657.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Mamer, Orval A., and Alain Lesimple. "Protonated 1-methylimidazole decomposition by electrospray tandem mass spectrometry." Rapid Communications in Mass Spectrometry 19, no. 12 (2005): 1771–74. http://dx.doi.org/10.1002/rcm.1975.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Huang, Lu, Yi-Ting Chen, Yan-Xia Li, and Li-Shuang Yu. "Application of Chiral Ionic Liquid-Modified Gold Nanoparticles in the Chiral Recognition of Amino Acid Enantiomers." Applied Spectroscopy 70, no. 10 (July 20, 2016): 1649–54. http://dx.doi.org/10.1177/0003702816645353.

Full text

Abstract:

Two chiral ionic liquids (ILs), namely 1-ethyl-3-methylimidazole l-tartrate (EMIML-Tar) and 1-ethyl-3-methylimidazole l-lactate (EMIML-Lac), were used to modify gold nanoparticles (AuNPs) for chiral recognition of amino acid enantiomers. Transmission electron microscopy, infrared spectroscopy, ultraviolet-visible spectroscopy, and capillary electrophoresis were used for the characterization of chiral IL-modified AuNPs. Meanwhile, the performance of l-tartaric acid and l-lactic acid as modifiers was investigated to make a comparison. The chiral recognition mechanism is further discussed.

APA, Harvard, Vancouver, ISO, and other styles

39

Ivanov, A. G., V. D. Sheludyakov, A. М. Abramkin, E. A. Novokovskaya, A. D. Kirilin, and P. A. Storozhenko. "CHLORIDES OF POLYORGANOSILOXANES WITH 1-METHYLDIAZOLYLMETHYLENIC GROUPS. SYNTHESIS AND PROPERTIES." Fine Chemical Technologies 12, no. 4 (August 28, 2017): 50–57. http://dx.doi.org/10.32362/2410-6593-2017-12-4-50-57.

Full text

Abstract:

Chlorides of polyorganosiloxanes with 1-methyldiazolylmethylene groups were synthesized using the reaction of quaternization of poly(chloromethyl)organosiloxanes with 1-methylimidazole. The degree of completeness of this reaction was determined, and the products were characterized by the data of elemental analysis, NMR spectroscopy (1H and 29Si), TGA and DTA. The possibility in principle of obtaining statistical polyorganosiloxanes with the [1-(methyl)imidazolyl]methyl substituent in the frame of the siloxane macromolecule by quaternization of the corresponding chloromethyl-substituted organosilicon polymers with 1-methylimidazole is shown. By the method of TGA and DTA, it was found that the destruction of the obtained ionic liquids occurs when heating them in air above 265 °C. The possibility of fixing the formation of an imidazolium salt by the appearance of a chemical shift in the region ~10 ppm in the 1Н-NMR spectrum has been established.

APA, Harvard, Vancouver, ISO, and other styles

40

Dehvari, Fatemeh, and Alireza Hassanabadi. "ChemInform Abstract: One-Pot Synthesis of 1-Methylimidazol-2-yl N-Aroyldithiocarbamates from 2-Mercapto-1-methylimidazole, Ammonium Thiocyanate and Aroyl Chlorides." ChemInform 47, no. 5 (January 2016): no. http://dx.doi.org/10.1002/chin.201605145.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Cade, Ian A., and Anthony F. Hill. "1,1-Bis(N-methylimidazole)-2-(trimethylsilyl)-1-boracyclohexa-1,4-diene Chloride: A Stable Intermediate or Tangent en Route to 1-(N-Methylimidazole)borabenzene?" Organometallics 31, no. 5 (February 24, 2012): 2112–15. http://dx.doi.org/10.1021/om300002y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Meng, Meichen, Haijing Yan, Yanqing Jiao, Aiping Wu, Xiaomeng Zhang, Ruihong Wang, and Chungui Tian. "A “1-methylimidazole-fixation” route to anchor small-sized nitrides on carbon supports as non-Pt catalysts for the hydrogen evolution reaction." RSC Advances 6, no. 35 (2016): 29303–7. http://dx.doi.org/10.1039/c5ra27490g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Ledesma, A. E., J. Zinczuk, J. J. López González, A. Ben Altabef, and S. A. Brandán. "Structural and vibrational study of 4-(2′-furyl)-1-methylimidazole." Journal of Molecular Structure 924-926 (April 2009): 322–31. http://dx.doi.org/10.1016/j.molstruc.2009.01.058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Jian, F., Z. Wang, C. Wei, Z. Bai, and X. You. "Bis(1-methylimidazole-N3)bis(salicylato-O,O')copper(II)." Acta Crystallographica Section C Crystal Structure Communications 55, no. 8 (August 15, 1999): 1228–30. http://dx.doi.org/10.1107/s0108270199002590.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Neya, Saburo, Yoshiki Ohgo, Mikio Nakamura, and Noriaki Funasaki. "Unique Aspects of the 1-Methylimidazole Ligation to Corrphycenatoiron(III)." Bulletin of the Chemical Society of Japan 73, no. 12 (December 2000): 2759–65. http://dx.doi.org/10.1246/bcsj.73.2759.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Hörmannsdorfer, Michael, Ulrike Kahl, and Tom Nilges. "Synthesis and characterization of Cu(II)-halide 1-methylimidazole complexes." Zeitschrift für Naturforschung B 71, no. 2 (February 1, 2016): 105–12. http://dx.doi.org/10.1515/znb-2015-0139.

Full text

Abstract:

AbstractThree new complexes of Cu(II) halides (Cl, Br) with 1-methylimidazole (MIm), [Cu(MIm)4]Br2 (1), [Cu(MIm)4Br]Br · H2O (2), and [Cu(MIm)6]Cl2 · 2H2O (3) have been synthesized in ethanol. Their crystal structures have been determined by single-crystal X-ray diffraction. FT-IR spectroscopy, mass spectrometry, and thermal analyses were applied to characterize the compounds.

APA, Harvard, Vancouver, ISO, and other styles

47

Dash, Priyabrat, and Robert W. J. Scott. "1-Methylimidazole stabilization of gold nanoparticles in imidazolium ionic liquids." Chemical Communications, no. 7 (2009): 812. http://dx.doi.org/10.1039/b816446k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Lopez, Marco A., and Cynthia D. Ybarra. "Binding of 1-methylimidazole to heme determined by factor analysis." Journal of Porphyrins and Phthalocyanines 10, no. 03 (March 2006): 186–200. http://dx.doi.org/10.1142/s1088424606000223.

Full text

Abstract:

We report the binding of 1-methylimidazole to ferric octaethylporphyrin chloride in methylene chloride. Factor analysis of a series of UV-vis titration spectra indicated there were three species in solution. These species are postulated as being the ferric porphyrin chloride species, the ferric porphyrin(1-MeIm)chloride species, and the ferric (1-MeIm)2chloride species. A coupled nonlinear least squares analysis of absorbance changes at two wavelengths yielded estimates of the binding constants. The binding constants for the first and second 1-MeIm are K 1 = 278 ± 7 M -1 and K 2 = 161 ± 25 M -1. It is suggested that displacing the chloride ion is the reason for having K 2 < K 1.

APA, Harvard, Vancouver, ISO, and other styles

49

Matsunaga, Yuki, Kiyoshi Fujisawa, Nagina Amir, Yoshitaro Miyashita, and Ken-ichi Okamoto. "Crystallographic report: Dichloro[bis(1-methylimidazole-2)disulfide]zinc(II)." Applied Organometallic Chemistry 19, no. 1 (January 2005): 208. http://dx.doi.org/10.1002/aoc.832.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Carter, David A., and Jeanne E. Pemberton. "Raman spectroscopy and vibrational assignments of 1- and 2-methylimidazole." Journal of Raman Spectroscopy 28, no. 12 (December 1997): 939–46. http://dx.doi.org/10.1002/(sici)1097-4555(199712)28:12<939::aid-jrs186>3.0.co;2-r.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!