Copper mediated cyanatation of N‐(quinoline‐8‐yl)benzamides with cyanate salts and subsequent intramolecular cyclization of the resulting product was accomplished. Different derivatives of quinazoline‐2,4(1H,3H)‐dione bearing quinoline‐8‐yl directing group were readily prepared in moderate to high yields by this methodology from easily accessible starting materials through cascade directed C–H bond functionalization/annulation reactions.
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