4.4 Article

A New Pathway for Phthalazine Derivatives via Metal-Free Cyclization of ortho-Alkynylphenyl Ketones and Hydrazine

期刊

JOURNAL OF HETEROCYCLIC CHEMISTRY
卷 51, 期 5, 页码 1282-1286

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WILEY
DOI: 10.1002/jhet.1682

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资金

  1. National Nature Science Foundation of China [20972121, 20872116]
  2. Science Foundation of Ministry of Education for the New Teacher at the University of China [20090141120058]
  3. Open Research Fund Program of the State Key Laboratory of Virology of China [2011002]

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A one-step synthetic protocol for phthalazine derivatives has been developed. In the presence of Et3N, a series of phthalazine derivatives were conveniently prepared in high yield by the reaction of ortho-alkynylphenyl ketones and hydrazine under mild reaction conditions. The structure was unambiguously confirmed by X-ray crystallographic analysis of product 2i.

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