Directed metalation of 1-ester-substituted indolizines: base/electrophile-controlled regioselective functionalization

Org Lett. 2015 Jan 16;17(2):238-41. doi: 10.1021/ol503288e. Epub 2014 Dec 26.

Abstract

A variety of C-2 and C-5 difunctionalized indolizines have been prepared through the reaction of 1-ester-substituted indolizines with organometallic bases followed by a reaction with different electrophiles. Metalation takes place under mild conditions allowing the isolation of a number of difunctionalized indolizines in good yields. The regioselectivity of the reaction appears to be governed by the nature of the base and electrophile.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Esters
  • Indolizines / chemical synthesis*
  • Indolizines / chemistry*
  • Molecular Structure
  • Organometallic Compounds / chemistry*
  • Palladium / chemistry*
  • Stereoisomerism

Substances

  • Esters
  • Indolizines
  • Organometallic Compounds
  • Palladium