科研之友
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摘要
A facile and environmentally benign Pictet-Spengler strategy for the synthesis of a series of biologically important pyrrolo- and indolo[1,2-a]quinoxalines has been developed by reacting 1-(2-aminophenyl)-pyrrole or 1-(2-aminophenyl)indoles with a wide range of aromatic aldehydes, acetophenones or isatins in ethanol at ambient temperature using p-dodecylbenzenesulfonic acid (p-DBSA) as an efficient Bronsted acid-surfactant combined catalyst. This methodology was found to be applicable to generate diverse quinoxaline derivatives in fairly good yields under mild reaction conditions.
- 出版日期2015
