Résumé Cerium(III) chloride is found to be an highly efficient catalyst for the addition of aldehydes, β-naphthol and cyclic 1,3-dicarbonyl compounds/Meldrum's acid via a multicomponent reaction. The easy availability of starting materials, novel and eco-friendly procedure makes this strategy more useful for the preparation of tetrahydrobenzo[a]-xanthen-11-one, and benzo[f]chromen-3-one derivatives.
摘要
氯化
铈(III)被发现是一种高效的催化剂,可通过多组分反应促进醛、β-
萘酚和环状1,3-二酮化合物/梅尔德朗酸的加成。起始材料易于获取,工艺新颖且环保,使得这种策略在制备四氢苯并[a]
喹啉-11-酮和苯并[f]色烯-3-酮衍
生物方面更加实用。