Synthesis of thiophene 1,1-dioxides and tuning their optoelectronic properties

Org Lett. 2013 Oct 18;15(20):5230-3. doi: 10.1021/ol4024024. Epub 2013 Oct 3.

Abstract

A 2,5-bis(tributylstannyl)thiophene 1,1-dioxide was prepared from 2,5-bis(trimethylsilyl)thiophene 1,1-dioxide, bis(tributyltin) oxide, and tetrabutylammonium fluoride (TBAF). The 2,5-bis(tributylstannyl)thiophene 1,1-dioxide and a 2,5-diiodothiophene 1,1-dioxide were utilized in a series of Stille cross-coupling reactions to afford thiophene 1,1-dioxides with either electron-donating or electron-withdrawing substituents. Electron-withdrawing groups greatly facilitate the reduction of these sulfone heterocycles, and -C6H4-p-NO2 substituents produce a 510 mV shift as compared to a thiophene 1,1-dioxide with two phenyl groups.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electrochemical Techniques*
  • Molecular Structure
  • Organotin Compounds / chemical synthesis*
  • Organotin Compounds / chemistry
  • Thiophenes / chemical synthesis*
  • Thiophenes / chemistry

Substances

  • 2,5-bis(tributylstannyl)thiophene 1,1-dioxide
  • Organotin Compounds
  • Thiophenes