Ionic liquid promoted cyclocondensation reactions to the formation of isoxazoles, pyrazoles and pyrimidines was written by Moreira, Dayse N.;Longhi, Kelvis;Frizzo, Clarissa P.;Bonacorso, Helio G.;Zanatta, Nilo;Martins, Marcos A. P.. And the article was included in Catalysis Communications in 2010.Category: imidazoles-derivatives The following contents are mentioned in the article:
A simple one-pot procedure to obtain a series of five- and six-membered heterocycles, e. g., I and II in three different ionic liquids ([BMIM][BF4], [BMIM][OH] and [HMIM][HSO4]) is described. The synthetic protocol involves the reaction between β-enamino ketone derived from 1,4-diacetylbenzene and hydroxylamine, hydrazines (R1NHNH2, where R1 = H, Ph, 4-O2N-Ph, 2,4-(O2N)2-Ph, C6F5, CO2Me, CONH2, CH2CH2OH, t-Bu) or amidines (R2C(NH)NH2, where R2 = NH2, Ph), furnishing bis-isoxazoles, bis-pyrazoles and bis-pyrimidines in good yields and short reaction times. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Category: imidazoles-derivatives).
1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Category: imidazoles-derivatives
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem