Microwave-Assisted Synthesis Of 7-Azaindoles Via Iron-Catalyzed Cyclization Of An O-Haloaromatic Amine With Terminal Alkynes
RSC ADVANCES(2019)
摘要
An efficient and practical procedure was developed to prepare 7-azaindole, starting from an o-haloaromatic amine and corresponding terminal alkynes under microwave irradiation and the scope was demonstrated with a number of examples. The valuable features of this procedure included the iron-catalyzed cyclization, short reaction times and convenient operation. Furthermore, iron catalysis is an interesting alternative to homogeneous catalysis for the synthesis of heterocycles.
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