32673-41-9Relevant articles and documents
Preparation method of 4-imidazolemethanol hydrochloride
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Paragraph 0016-0030, (2017/10/31)
The invention discloses a preparation method of 4-imidazolemethanol hydrochloride. The preparation method includes taking 1,3-dihydroxyacetone and formaldehyde as raw materials and ceric ammonium nitrate as a nitrogen source, and reacting at an ordinary pressure under catalysis of a novel catalyst so as to obtain the 4-imidazolemethanol hydrochloride. The preparation method has the advantages that the target product is high in yield and purity by being prepared through a one-step method; the preparation method is mild in reaction condition without pressurizing reaction, safer to operate and quite suitable for large-scale industrialized production.
Preparation of (fluoromethyl)- and (difluoromethyl)imidazoles
Dolensky, Bohumil,Kirk, Kenneth L.
, p. 1335 - 1344 (2007/10/03)
2-(Fluoromethyl)- and 2-(difluoromethyl)imidazoles, and 4-(fluoromethyl)- and 4-(difluoromethyl)imidazoles have been prepared by deoxyfluorination of (hydroxymethyl)imidazole or formylimidazole precursors.
Preparation and structure determination of 1-benzyl-, 1-methyl- and 1H-5-[(2-nitro-2-phenyl)ethenyl]imidazoles
Aulaskari, Paula,Ahlgren, Markku,Rouvinen, Juha,Vainiotalo, Pirjo,Pohjala, Esko,Vepsaelaeinen, Jouko
, p. 1345 - 1354 (2007/10/03)
1-R-5-[(2-Nitro-2-phenyl)ethenyl]imidazoles (R = Bn, Me, H) 6a,b,c were synthesized by the Knoevenagel reaction of the corresponding aldehydes 4a,b,c with phenylnitromethane 5. The E-isomers 6a,b,c were precipitated from the reaction mixture as crystalline compounds in 89, 81 and 60% yields, respectively. Traces of the Z-isomers 6a'b',c' were found in the reaction mixtures but could be obtained in a ratio of 4:3 from the E-form with UV irradiation. The E-forms were more stable and the Z-isomers changed again to the E-isomers in several weeks.