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Copper-Mediated Direct Cyanatation of Benzamides: A New Approach to the Synthesis of Quinazolinediones Publisher



Kianmehr E1 ; Falahat MR1 ; Tanbakouchian A1 ; Mahdavi M2
Authors
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Authors Affiliations
  1. 1. School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  2. 2. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: European Journal of Organic Chemistry Published:2020


Abstract

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. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim