Efficient Metal‐Free Synthesis of Various Pyrido[2′,1′:2,3]imidazo‐ [4,5‐<i>b</i>]quinolines

Abstract

Dancing with diversity: The synthesis of diverse pyrido[2′,1′:2,3]imidazo[4,5-b]quinolines bearing several substitution patterns was developed based on combining a multicomponent reaction (Groebke–Blackburn–Bienaymé reaction) with an original cyclization as a secondary transformation (see scheme; DBU=1,8-diazabicyclo[5.4.0]undec-7-ene). As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.