4.7 Article

Merging Gold Catalysis and Bronsted Acid Catalysis for the Synthesis of Tetrahydrobenzo[b][1,8]naphthyridines

Journal

ADVANCED SYNTHESIS & CATALYSIS
Volume 360, Issue 5, Pages 875-880

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201701323

Keywords

Azides; gold catalysis; enynes; hetero-cycles; tandem reaction

Funding

  1. National Natural Science Foundation of China [21372219, 21572225]

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A gold(I)/BrOnsted acid-catalyzed cyclization of 2-azidobenzaldehydes with 3-aza-1,6-enynes has been developed for the synthesis of tetrahydrobenzo[b][1,8]naphthyridine derivatives. This protocol enabled the modular synthesis of tetracyclic heterocycles in one operation with water and nitrogen gas as the byproducts.

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