Convenient oxidation of alkylated phenols and methoxytoluenes to antifungal 1,4-benzoquinones with hydrogen peroxide (H2O2)/methyltrioxorhenium (CH3ReO3) catalytic system in neutral ionic liquid

Autor: Sabrina Tempesta, Maurizio Barontini, Marcella Pasqualetti, Roberta Bernini, Enrico Mincione, Giancarlo Fabrizi
Rok vydání: 2006
Předmět:
Zdroj: Tetrahedron. 62:7733-7737
ISSN: 0040-4020
DOI: 10.1016/j.tet.2006.05.069
Popis: Alkylated phenol and methoxytoluene derivatives were catalytically and selectively oxidized to the corresponding 1,4-benzoquinones in good conversions and yields. Reactions were performed with hydrogen peroxide (H2O2)/methyltrioxorhenium (CH3ReO3) in 1-butyl-3-methylimidazolium tetrafluoroborate [bmim]BF4, a neutral ionic liquid. Compounds were tested in vitro for their antifungal activity against the growth of several widespread soil fungi. Some of them were proved to be potent inhibitors of Fusarium sp. than ketoconazole, a commercially available and expensive antifungal agent.
Databáze: OpenAIRE