Expeditious synthesis of pyrano[2,3,4-de]quinolines via Rh(iii)-catalyzed cascade C-H activation/annulation/lactonization of quinolin-4-ol with alkynes.
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DOI: 10.1039/c7cc04113f
Abstract: Rh(iii)-catalyzed cascade C-H activation/annulation/lactonization of quinoline-4-ols and alkynes has been reported. A broad range of tetracyclic pyrano[2,3,4-de]quinolines have been prepared in one-step with good functional group tolerance, excellent site selectivity, and high efficiency. read more here.
Keywords: annulation lactonization; iii catalyzed; cascade activation; pyrano quinolines ... See more keywords