4.5 Article

Hypervalent Iodine(III) Promoted Direct Synthesis of Imidazo[1,2-a]pyrimidines

Journal

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2014, Issue 22, Pages 4837-4843

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201402456

Keywords

Synthetic methods; Nitrogen heterocycles; C-H functionalization; Amination; Iodine

Funding

  1. National Natural Science Foundation of China (NSFC) [21272149]
  2. Shanghai Municipal Education Commission [14ZZ094]
  3. Science and Technology Commission of Shanghai Municipality [13ZR1416400]

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An efficient and mild synthesis of imidazo[1,2-a]pyrimidine derivatives has been developed from readily available pyrimidyl arylamines or enamines through a hypervalent iodine-promoted intramolecular C-H bond cycloamination reaction. This protocol allows for the facile construction of biologically active bicyclic imidazo[1,2-alpha]pyrimidine skeletons as well as other imidazo[1,2-alpha]-type fused heterocycles.

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