The reaction proceeds in a consecutive manner containing Michael addition, iodination, cyclization from intramolecular nucleophilic substitution, and dehydrogenative aromatization from spiro ring opening. Following this novel strategy, a variety of 1,2,4-trisubstituted 5-(o-hydroxybenzoyl)imidazoles were efficiently synthesized in moderate to good yields from readily available starting materials. A plausible
已成功探索了
碘促进的呫酮与脒的多米诺反应。该反应以连续的方式进行,包括迈克尔加成、
碘化、分子内亲核取代的环化和螺环开环的脱氢芳构化。遵循这一新策略,各种 1,2,4-三取代的 5-( o-羟基苯甲酰基)
咪唑从容易获得的起始材料中以中等到良好的收率有效合成。已经提出了一种合理的机制。