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(organic chemistry)
C3H4N2 One of a group of organic heterocyclic compounds containing a five-membered diunsaturated ring with two nonadjacent nitrogen atoms as part of the ring; the particular compound imidazole is a member of the group.



(glyoxaline, 1,3-diazole) a heterocyclic base. Colorless crystals; boiling point, 256°C. Imidazole is readily soluble i n water and alcohol and moderately soluble in ether. It is aromatic, that is, readily undergoes halogenation, nitration, and sulfonation. The hydrogen of the NH group can be replaced by alkyl by the action of, for example, dimethylsulfate. Imidazole is prepared by reacting glyoxalwith ammonia and formaldehyde. Its derivatives (histamin, histidine, carnosine, pilocarpine) are widely distributed in the animal and plant worlds and have important biological significance. [10–416-6 ]

References in periodicals archive ?
After this period, to the resulting natrium polysulfide mixture was added a solution of imidazolium salt (4 mL) in C[H.
2000, "Thermal properties of imidazolium ionic liquids," Thermochim.
The resulting imidazolium salts readily form the respective bis-NHC silver(I) complexes upon reaction with Ag2CO3.
Tenders are invited for Supply Of 1-Butyl-3-Methyl Imidazolium Bis-Ctrifluoro Methyl Sulphonyl) Imide-(>98% Pure)
This implies that ionic liquids induce some specific structural character to affect a higher degree of order in the grown PPy films due to the insertion of both cations and anions in the polymer matrix and imidazolium ions facilitates better charge transport behavior (43).
Garcia Castro, Ivette; (Ludwigshafen, DE); Dieckmann, Yvonne; (Hassloch, DE); Haupt, Ingrid; Imidazolium alkyl (meth) acrylate polymers; US Patent App.
Herein we report enhanced selectivity due to the use of the ionic liquid 1-butyl-3-methyl imidazolium triflate at room temperature, which is a significant improvement over the harsh conditions normally required for the [3+2] cycloaddition.
In this study, l-rt-tetradecyl-3-carboxymethyl imidazolium chloride ([C[c sub 14]14cim]Cl), shown in Fig.
Modification of the clay surface with hexadecyl imidazolium [13] and hexadecyl-quinolinium bromide [14] improved clay dispersion.