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One-Pot Synthesis of Benzo[4,5]imidazo[2,1‑<i>a</i>]isoquinolines and Isoquinolino[3,4‑<i>b</i>]quinoxalines via Tandem Cyclization Strategies

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posted on 2016-03-30, 00:00 authored by Alex L. Bagdasarian, Huy H. Nguyen, Teresa A. Palazzo, James C. Fettinger, Makhluf J. Haddadin, Mark J. Kurth
Two operationally simple one-pot protocols have been developed for the synthesis of amino-functionalized benzo­[4,5]­imidazo­[2,1-<i>a</i>]­isoquinolines and isoquinolino­[3,4-<i>b</i>]­quinoxalines. Optimization data and substrate scope for these atom-economical transformations, which engage commercially available <i>o</i>-phenylenediamines and <i>o</i>-cyanobenzaldehydes, are discussed.

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