Lithiation and Electrophilic Substitution of Dimethyl Triazones.

نویسندگان

  • Sunkyu Han
  • Dustin S Siegel
  • Mohammad Movassaghi
چکیده

The lithiation and electrophilic substitution of dimethyl triazones is described. Directed lithiation or tin-lithium exchange of dimethyl triazones afforded the corresponding dipole stabilized nucleophiles that were trapped with various electrophiles. Keto-triazone derivatives accessed by acylation of such nucleophiles were readily converted to the corresponding imidazolone heterocycles.

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عنوان ژورنال:
  • Tetrahedron letters

دوره 53 29  شماره 

صفحات  -

تاریخ انتشار 2012