نتایج جستجو برای: n methyl imidazol

تعداد نتایج: 1047740  

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

An environmentally benign procedure for the synthesis of vicinal nitrohydrins via the regioselective ring opening reaction of epoxides with nitrite anion using silica-bound 3-{2-[poly(ethylene glycol)]ethyl}-substituted 1-methyl-1H-imidazol-3-ium bromide as an effective heterogeneous phase transfer catalyst was described. Short reaction time, high yield of products, simple work-up proc...

Journal: :iranian journal of pharmaceutical research 0
a patel s bari g talele j patel m sarangapani

some new 3-[(5-benzylidene-2-phenyl)-3, 5-dihydro-4-h-imidazol-4-one-3-(4-bezoylhydrazono)]-indole-2-ones (viii) have been synthesized from different isatinhydrazones (ii) by condensing with 2-phenyl-5-benzylidene- 3-n (4-acetyl phenyl)-1, 5-dihydro-imidazol-4-one (vii). their chemical structures have been confirmed by ir, 1hnmr, mass and by elemental analysis. investigation of antimicrobial ac...

Journal: :Chemical communications 2009
Avijit Goswami Taichi Ito Naoko Saino Kouki Kase Chikashi Matsuno Sentaro Okamoto

A NiCl(2)-6H(2)O/Zn reagent with a 2-aryliminomethylpyridine ligand catalyzed cyclization/polymerization of 1,6-diynes to yield mainly the corresponding poly(1,3-butadienylene) compounds, whereas NiBr(2)-3H(2)O/Zn with the use of 3-(2-(2-methoxyethoxy)-ethyl)-1-methyl-1H-imidazol-3-ium bromide as a ligand converted 1,6-diynes to the corresponding annulated 1,3,5,7-cyclooctatetraenes in a biphas...

Journal: :Organic letters 2004
Bao-Qing Ma Luis F Vieira Ferreira Philip Coppens

A new framework based on C-methylcalix[4]resorcinarene and the flexible nonconjugated spacer 1,4-bis(imidazol-1yl-methyl)benzene encloses a large one-dimensional channel, containing benzil nanocolumns. Unlike in a previously reported series of benzil-containing supramolecular solids with conjugated linker molecules, benzil luminescence is observed, but the lifetime of 580 ns at 77 K is consider...

2008
José Lamartine Soares-Sobrinho Marcílio S. S. Cunha-Filho Pedro José Rolim Neto Juan J. Torres-Labandeira Bruno Dacunha-Marinho

THE CONFORMATION OF THE TITLE COMPOUND [SYSTEMATIC NAME: N-benzyl-2-(2-nitro-imidazol-1-yl)acetamide], C(12)H(12)N(4)O(3), can be described in terms of the relative orientation of three planar fragments, the imidazol group (A), benzyl group (B), and the acetamide fragment (C), with corresponding dihedral angles: A/C = 88.17 (4), B/C = 67.12 (5) and A/B = 21.11 (4)°. The crystal packing is enhan...

Journal: :Journal of Industrial and Engineering Chemistry 2023

Synthesis of high viscosity, ecofriendly, and low melting point poly(ionic liquid)s (LMP-PIL) with network structure has been introduced by the reaction 1,1′,1′′‑(1,3,5‑triazine‑2,4,6‑triyl) tris(3‑methyl‑1H‑imidazol‑3‑ium) iodide ionic liquid (TAIm[I] IL) monomer disodium salts various open-chain carboxylic acids as well sulfonic via a polycondensation on counter ions (PC-CI). Change in alkyl ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

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