Collect. Czech. Chem. Commun. 1993, 58, 1905-1913

5-Aryl-2-furancarbaldehyde Hydrazones and Related Compounds

Alžbeta Krutošíkováa, Miloslava Dandárováa and Juraj Alföldib

a Department of Organic Chemistry, Slovak Technical University, 812 37 Bratislava, Slovak Republic
b Institute of Chemistry, Slovak Academy of Sciences, 842 38 Bratislava, Slovak Republic


A series of 5-aryl-2-furancarbaldehyde 2,6-dialkylphenylhydrazones (Ia - Iv) and dimethylhydrazones (IIa - IIf) as well as related compound benzo[b]furan-2-carbaldehyde dimethylhydrazone (III) were prepared. Compounds Ia - Iv were synthesized by condensing 5-aryl-2-furancarbaldehydes with 2,6-dialkylphenylhydrazines, compounds IIa - IIf were obtained from the same starting compounds and N,N-dimethylhydrazine. The intermediate 5-aryl-2-furancarbaldehydes were prepared by reaction of aryldiazonium chlorides with 2-furancarbaldehyde. The structure of the compounds were proven by 1H, 13C and 15N NMR spectra.