SYNTHESIS AND METHYLATION PRODUCTS OF 4(5)-(2-FURYL)IMIDAZOLE
DOI:
https://doi.org/10.1007/3037Keywords:
2-acetylfuran, copper diacetate, methyl iodide, furacyl bromide, 4(5)-(2-furyl)imidazole, methylationAbstract
Bromination of 2-acetylfuran with copper(II) bromide in a mixture of ethyl acetate and chloroform leads selectively to furacyl bromide, the nucleophilic substitution of bromine in which by OAc and subsequent use of the Weidenhagen reaction enabled the synthesis of 4(5)‑(2‑furyl)imidazole. On N‑methylation of this imidazole in KOH–acetone 2 isomers are formed, the 1-methyl-4- and 1-methyl-5‑(2-furyl)imidazoles. It was established that, unlike alkylation of 4(5)-phenylimidazole, the main product of the reaction is 1-methyl-5-(2-furyl)imidazole.
How to Cite
Vlasova, E. V.; Stoyanov, V. M.; El'chaninov, M. M.; Lukyanov, B. S. Chem. Heterocycl. Compd. 2010, 46, 681. [Khim. Geterotsikl. Soedin. 2010, 849.]
For this article in the English edition see DOI 10.1007/s10593-010-0569-z