Gold-Catalyzed Intramolecular Cyclization of N‑Propargylic β‑Enaminones for the Synthesis of 1,4-Oxazepine Derivatives
journal contributionposted on 06.11.2015 by Kommuru Goutham, Desamala Ashok Kumar, Surisetti Suresh, Balasubramanian Sridhar, Ravirala Narender, Galla V. Karunakar
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An efficient and mild one-pot, gold-catalyzed intramolecular cyclization of N-propargylic β-enaminones has been achieved for the generation of 1,4-oxazepine derivatives. This synthetic transformation tolerates a range of substituted N-propargylic β-enaminones in moderate to good yields.