Metal-free construction of tricyclic or tetracyclic compounds—acid-promoted synthesis of benzo[4,5]imidazo[2,1-a]isoindole and 1,2-dialkyl-2,3-dihydrobenzimidazoles
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2016 ◽
Vol 81
(23)
◽
pp. 11982-11986
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2019 ◽
Vol 361
(6)
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pp. 1230-1235
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