Comparison of the efficiency of two imidazole-based dicationic ionic liquids as the catalysts in the synthesis of pyran derivatives and Knoevenagel condensations
Sign Up to like & getrecommendations! Published in 2019 at "Research on Chemical Intermediates"
DOI: 10.1007/s11164-019-03874-5
Abstract: In the present work, 3,3′-(butane-1,4-diyl)bis(1-methyl-1H-imidazol-3-ium) dichloride ([C4(MIm)2]·2Cl) and 3,3′-(butane-1,4-diyl)bis(1-methyl-1H-imidazol-3-ium) hydrogen sulfate ([C4(MIm)2]·2HSO4) were prepared via adequate, solvent-free methods and characterized using FT-IR, 1H NMR, 13C NMR, and potentiometric titration techniques. These reagents were investigated in… read more here.
Keywords: efficiency two; comparison efficiency; two imidazole; based dicationic ... See more keywords
Comparison of the efficiency of different means of transport by direct and indirect consumer costs
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DOI: 10.1134/s1075700717040116
Abstract: This article provides a comparative analysis of direct and indirect costs of end consumers who travel by different means of transport, including automobile, bus, plane, rail (traditional and high-speed networks). The analysis has been presented… read more here.
Keywords: direct indirect; comparison efficiency; means transport; efficiency different ... See more keywords