Facile two-step synthesis of 3-substituted indazoles using diazo(trimethylsilyl)methylmagnesium bromide.

نویسندگان

  • Yoshiyuki Hari
  • Ryosuke Sone
  • Toyohiko Aoyama
چکیده

Diazo(trimethylsilyl)methylmagnesium bromide readily reacted with various ketones and aldehydes to give the corresponding 2-diazo-(2-trimethylsilyl)ethanols. These were efficiently converted to indazoles bearing hydroxymethyl units at the 3-position by intermolecular [3 + 2] cycloaddition with benzynes.

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عنوان ژورنال:
  • Organic & biomolecular chemistry

دوره 7 13  شماره 

صفحات  -

تاریخ انتشار 2009