We report a novel and practical one-pot Rh(III)-catalyzed strategy to construct benzimidazo[1,2-a]quinolines from readily available imidamides and anthranils. The cascade reaction proceeds via a C-H amination-cyclization-cyclization process in ionic liquid without any additives and possesses simple operation, moderate-to-high yield, and broad substrate scope features, which will provide the reference
Unaromatized Tetrahydrobenzimidazole Synthesis from <i>p</i>
-Benzoquinone and <i>N</i>
-Arylamidines and their Cytotoxic Potential
作者:Minh Quan Tran、Thanh Binh Nguyen、Wamtinga Richard Sawadogo、Ludmila Ermolenko、Sungmi Song、Pascal Retailleau、Marc Diederich、Ali Al-Mourabit
DOI:10.1002/ejoc.201801077
日期:2018.11.15
New tetrahydrobenzimidazoles were synthesized using a simple method from p‐benzoquinone and N‐arylamidines, and their cytotoxic potential was evaluated. Among them, three are cytotoxic in the µm range.
Synthesis of indoles and quinazolines <i>via</i> additive-controlled selective C–H activation/annulation of <i>N</i>-arylamidines and sulfoxonium ylides
Selective synthesis of indoles and quinazolines was achieved through a precise control of C–H activation/annulation by changing additives.
通过改变添加剂,通过精确控制C-H活化/环化实现了对吲哚和喹唑啉的选择性合成。
Reactivity-Controlled Regioselectivity: A Regiospecific Synthesis of 1,2-Disubstituted Benzimidazoles
作者:Xiaohu Deng、Neelakandha S. Mani
DOI:10.1002/ejoc.200901056
日期:2010.2
combination of N 1 /N 2 chemoselectivity on the amidine and reactivity-controlled X 1 /X 2 chemoselectivity on the 1,2-dihaloarene. This reaction proves to be fairly general for the regiospecificsynthesis of 1,2-substituted benzimidazoles.