نتایج جستجو برای: 2 methylimidazole

تعداد نتایج: 2525412  

Journal: :Inorganic chemistry 2015
Andrea Cebollada Maialen Espinal Viguri Julio Pérez Jesús Díaz Ramón López Lucía Riera

New N-methylimidazole (N-MeIm) complexes of the {Mo(η(3)-allyl)(CO)2(N-N)} fragment have been prepared, in which the N,N-bidentate chelate ligand is a 2-pyridylimine. The addition of a strong base to the new compounds deprotonates the central CH group of the imidazole ligand and subsequently forms the C-C coupling product that results from the nucleophilic attack to the imine C atom. This react...

Journal: :Zeitschrift für anorganische und allgemeine Chemie 2021

A novel Zn(II) mixed‐ligand complex, Zn(nba)2(meim)2 (1), synthesized from Zn(NO3)2.6H2O, nitrobenzoic acid (Hnba) and 1‐methylimidazole (meim) is reported. The complex was characterized by elemental analysis, FT‐IR, powder single crystal X‐ray crystallography TGA/DSC. 1 exhibits a tetrahedral geometry for Zn(II), which coordinated to two carboxylate oxygen atoms nba anions imidazole nitrogen m...

2001
Rajender S. Varma Vasudevan V. Namboodiri

An efficient solventless protocol for the preparation of a wide variety of ionic liquids is described, which requires a simple exposure of admixed 1-methylimidazole and alkyl halides to microwave irradiation in open glass containers. The details of this clean process using a common household microwave oven, which exploits the newer inverter technology system for better power attenuation, are de...

Journal: :Japanese journal of infectious diseases 2004
Masao Nakamura Naomi Shishido Hiroaki Akutsu

Reactions of thioureylene antithyroid drugs (1-methyl-2-mercaptoimidazole and carbimazole) with hypochlorous acid (HOCl) and superoxide were followed optically and products were analyzed by mass spectrometry. 1-methyl-2-mercaptoimidazole (MMI) and carbimazole reacted rapidly with HOCl with a rate constant of 1 x 10(7) and 7 x 10(6) M(-1)s(-1), respectively. The characteristic spectrum assigned ...

Journal: :Dalton transactions 2010
Lindsay Hewison Sian H Crook Tony R Johnson Brian E Mann Harry Adams Sarah E Plant Philip Sawle Roberto Motterlini

New CO-releasing molecules, CO-RMs, based on indenyl iron carbonyls have been identified. Half-lives for carbon monoxide (CO) release, (1)H NMR, (13)C NMR, IR, mass spectra, elemental analysis and biological data have been determined for the compounds. Limited correlations have been made between half-lives and ΔG(‡) for CO release and spectroscopic parameters, ν(CO) and δ((13)CO). X-ray structu...

Journal: :Dalton transactions 2016
Danielle A Henckel Yuting F Lin Theresa M McCormick Werner Kaminsky Brandi M Cossairt

An electrocatalytically active cobalt diimine monoxime monoximate complex was deprotonated by 1-methylimidazole affording a doubly deprotonated complex that serves as a versatile precursor for synthesis of a variety of multimetallic complexes with Co-Zn, -Cd, -Mn and -Ru coordination. These complexes were studied using a combination of spectroscopic, analytical and electrochemical techniques, r...

2016
Gwang-Seok Song Dai Soo Lee Ilho Kang Frank Wiesbrock

A novel method for preparing epoxy/silver nanocomposites was developed via the in situ formation of silver nanoparticles (AgNPs) within the epoxy resin matrix while using silver nanowires (AgNWs) as a conductive filler. The silver–imidazole complex was synthesized from silver acetate (AgAc) and 1-(2-cyanoethyl)-2-ethyl-4-methylimidazole (imidazole). AgNPs were generated in situ during the curin...

Journal: :Organic & biomolecular chemistry 2015
William H García Santos Carlos E Puerto Galvis Vladimir V Kouznetsov

A selective and mild method for the esterification of a variety of carboxylic acids with geraniol is developed. We demonstrated that the use of triphenylphosphine, I2, 2-methylimidazole or imidazole and a catalytic amount of Gd(OTf)3 resulted to be more active than the previous protocols, providing a 16-membered library of geranyl esters in higher yields and in shorter reaction times. The use o...

2018
Assila Maatar Ben Salah Lilia Belghith Fendri Thierry Bataille Raquel P. Herrera Houcine Naïli

BACKGROUND Complexes of imidazole derivatives with transition metal ions have attracted much attention because of their biological and pharmacological activities, such as antimicrobial, antifungal, antiallergic, antitumoural and antimetastatic properties. In addition, imidazoles occupy an important place owing to their meaningful catalytic activity in several processes, such as in hydroaminatio...

Journal: :Endocrinology 2010
Beatriz Morte Diego Díez Eva Ausó Mónica M Belinchón Pilar Gil-Ibáñez Carmen Grijota-Martínez Daniela Navarro Gabriella Morreale de Escobar Pere Berbel Juan Bernal

Thyroid hormones influence brain development through regulation of gene expression mediated by nuclear receptors. Nuclear receptor concentration increases rapidly in the human fetus during the second trimester, a period of high sensitivity of the brain to thyroid hormones. In the rat, the equivalent period is the last quarter of pregnancy. However, little is known about thyroid hormone action i...

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