Imidazolium-hydroxides

A basic ionic liquid, l-butyl-3-methyl imidazolium hydroxide, [bmImjOH, was found to catalyze the Knoevenagel condensation of aliphatic aldehydes and ketones with active methylene compounds elSciently in the absence of any organic solvent (Scheme 5.58). Coumarins have been obtained in one step from the reaction of o-hydroxy aldehydes following this procedure. ... [Pg.213]

Rann et al. reported the dramatic influence of a new tailor-made, task-specific, and stable ionic liquid, butyl methyl imidazolium hydroxide ([bmim][OH]), in Michael addition. They have discovered that a task-specific ionic liqnid [bmim][OH] efficiently promoted the Michael addition of 1,3-dicarbonyl compounds, cyano esters, and nitro alkanes to a variety of conjugated ketones, carboxylic esters, and nitriles withont reqniring any other catalyst and solvent (Fig. 12.21) [16]. Very interestingly, all open-chain 1,3-dicarbonyl componnds such as acetylacetone, ethyl ace-toacetate, diethyl malonate, and ethyl cyanoacetate reacted with methyl vinyl ketone and chalcone to give the usual monoaddition products, whereas the same reactions with methyl acrylate or acrylonitrile provided exclusively bis-addition products. [Pg.300]

The syntheses of the monomers 3-methacrylamidopropyldimethyl-ammonium 2-acrylamido-2-methylpropanesulfonate (Figure 2a) and 3-methacrylamidopropyItrimethyIammonium 2-methylpropanesulfonate (Figure 2b), and their corresponding polymers are reported here. The preparations of l-vinyl-3- (3-sulfopropyl) imidazolium hydroxide inner salt and its homopolymer have been reported previously (11). [Pg.329]

EINECS/EEINCS 271-949-8 269-547-2 238-305-8 Synonyms IH-lmidazolium, 1-(carboxymethyl)-4,5-dihydro-1-(2-hydroxyethyl)-2-undecyl-, hydroxide, sodium salt Eauroamphoacetate Eauroamphoglycinate Sodium 1 (carboxymethyl)-4,5-dihydro-1 (or 3)-(2-hydroxyethyl)-2-undecyl-1 H-imidazolium hydroxide Classification Amphoteric organic compd. [Pg.1348]

Disodium 1-[2-(2-carboxyethoxy) ethyl]-1-(2-carboxyethyl)-4,5-dihydro-2-( 15-methylhexadecyl)-1-H-imidazolium hydroxide. See Disodium isostearoamphodipropionate Disodium 1-[2-(2-carboxyethoxy) ethyl]-1-(2-carboxyethyl)-4,5-dihydro-2-undecyl-1H-imidazolium hydroxide. See Disodium... [Pg.1522]

Disodium stearoamphodiacetate CAS 69868-14-0 EINECS/ELINCS 274-173-8 Synonyms Disodium 1-[2-(carboxymethoxy) ethyl]-1-(carboxymethyl)-2-heptadecyl-4,5-dihydro-1 H-imidazolium hydroxide Stearoamphocarboxyglycinate Stearoamphodiacetate Classification Organic compd. [Pg.1542]

Sodium N-(2-carboxyethyl)-N-dodecyl-P-alaninate. See Sodium lauriminodipropionate Sodium 1-(2-carboxyethyl)-2-(heptadecenyl)-4,5-dihydro-1-(2-hydroxyethyl)-1H-imidazolium hydroxide. See Sodium oleoamphopropionate Sodium carboxyethyl tallowpolypropylamine CAS 97488-62-5 EINECS/ELINCS 306-998-7 Synonyms Tallowamphopolycarboxypropionic acid... [Pg.3990]

Myristoamphoglycinate Sodium 1-(carboxymethyl)-4,5-dihydro-1 (or 3)-(2-hydroxyethyl)-2-tridecyl-1H-imidazolium hydroxide... [Pg.4073]

Gong K, He Z, Xu Y, Fang D, Liu Z (2008) Green synthesis of 5-benzylidene rhodanine derivatives catalyzed by l-butyl-3-methyl imidazolium hydroxide in water. Monatsh Chem 139 913 915... [Pg.274]

The carbenic nature of imidazolium hydroxide has been strongly highlighted in order to focus attention on the acidity of the C(2) proton and the consequence this can exhibit on the reaction with this compound, which should not be considered a simple ionic liquid. ... [Pg.178]

It might be of further interest that by the use of different anions (with different basicity) the carbene concentration (and the catalytic activity) can be influenced in the ILs. In this respect imidazolium-hydroxide (with an apparently highly basic anion) should be mentioned. The synthesis of [C4CiIm][OH] has been reported... [Pg.14]

Sodium 1-(2-carboxyethyl)-2-(heptadecenyl)4,5-dihydro-1-(2-hydroxyethyl)-1H-imidazolium hydroxide. See Sodium oleoamphopropionate... [Pg.2428]

Uses Vise, builder and water retention aid in aq. pigment coalings, paper coalings Sodium 1 -(carboxymethyl)-4,5-dihydro-1 -(2-hydroxyethy l)-2-nonyl-1 H-imidazo-Hum hydroxide. See Sodium caproamphoacetate Sodium 1-(carboxymethyl)-4,5-dihydro-1 (or3)-(2-hydioxyethyl)-2-tridecyl-1H-imidazolium hydroxide. See S ium myristoamphoacetate Sodium 1 -(carboxymethyl)-4,5-dihydro-1(or 3)-(2-hydroxyethy l)-2-undecy M H-imidazolium hydroxide. See S ium lauroamphoacetate Sodium N-(carboxymethyl)-N-[2-[(2- hydroxyethyl) (1-oxooctadecyl) amino] ethyl] glycinate. See Disodium tallowamphodiacetate Sodium carltoxymethyl oleyl polypropylamine CAS 97659-53-5 EINECS/ELINCS 307-458-3... [Pg.2428]

Hossain, M. A. Lim, Y Lee, S. Jang, H. Choi, S. Hong, T. Jin, L. Kim, W. G., Synthesis and characterization of tetra-imidazolium hydroxides poly(fluorenylene ether sulfone) anion exchange membranes. Reactive and Functional Polymers 2013, 73(9), 1299-1305. [Pg.533]

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