Copper-catalyzed vinylation of hydrazides. A regioselective entry to highly substituted pyrroles

Org Lett. 2007 Mar 15;9(6):973-6. doi: 10.1021/ol062978s. Epub 2007 Feb 21.

Abstract

A modular route to highly substituted pyrroles has been developed. This transformation consists of two sequential copper-catalyzed vinylations of bis-Boc-hydrazine followed by thermal rearrangement/cyclization. A wide variety of functionalized pyrroles can be prepared in a selective manner from simple and easily accessible precursors. [reaction: see text]

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Copper / chemistry*
  • Cyclization
  • Hydrazines / chemical synthesis*
  • Models, Chemical
  • Pyrroles / chemistry*
  • Stereoisomerism
  • Vinyl Compounds / chemistry*

Substances

  • Hydrazines
  • Pyrroles
  • Vinyl Compounds
  • Copper