作者:Birgitte Langer Eriksen、Per Vedsø、Sandrine Morel、Mikael Begtrup
DOI:10.1021/jo970355+
日期:1998.1.1
Benzylation of 3-hydroxyimidazole 1-oxide gave 3-(benzyloxy)imidazole 1-oxide, which was deoxygenated with phosphorous trichloride to produce 1-(benzyloxy)imidazole. 1-(Benzyloxy)imidazole was deprotonated selectively at C-2 by n-butyllithium. The anion formed was reacted with electrophiles to give 1-(benzyloxy)imidazoles with carbon; halogen, silicon, or sulfur substituents at the 2-position, Subsequent debenzylation afforded 2-substituted 1-hydroxaimidazoles which in turn could be deoxygenated to give 2-substituted imidazoles.