Quaterpyrroles as building blocks for the synthesis of expanded porphyrins

Org Lett. 2015 May 1;17(9):2194-7. doi: 10.1021/acs.orglett.5b00767. Epub 2015 Apr 22.

Abstract

A new family of quaterpyrroles and their application as building blocks for the synthesis of macrocycles is reported. The preparation of these quaterpyrroles consisted of two synthetic steps: bromination of 2,2'-bipyrroles bearing two electron-withdrawing groups followed by Suzuki coupling with 1-(tert-butoxycarbonyl)pyrrole-2-boronic acid. The resulting quaterpyrroles have been used to prepare an octaphyrin and a substituted cyclo[8]pyrrole. Additionally, the synthesis of a new macrocycle containing the quaterpyrrole and 2,5-di(1H-pyrrol-2-yl)thiophene moieties is presented.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Macrocyclic Compounds / chemical synthesis*
  • Macrocyclic Compounds / chemistry
  • Models, Molecular
  • Molecular Structure
  • Porphyrins / chemical synthesis*
  • Porphyrins / chemistry
  • Pyrroles / chemical synthesis*
  • Pyrroles / chemistry

Substances

  • Macrocyclic Compounds
  • Porphyrins
  • Pyrroles