Synthesis of Functionalized Alkylidene Indanes and Indanones through Tandem Phosphine-Palladium Catalysis

Org Lett. 2015 May 1;17(9):2058-61. doi: 10.1021/acs.orglett.5b00554. Epub 2015 Apr 14.

Abstract

Densely functionalized alkylidene indanes and indanones can be prepared efficiently in one pot, in high yields with good stereoselectivities (in some cases exclusively the Z-isomer), through a route involving phosphine-catalyzed Michael addition followed by palladium-catalyzed Heck cyclization. These transformations tolerate substrates bearing various substituents around the indane/indanone motif. Employing this technology, a concise formal synthesis of sulindac, a nonsteroidal anti-inflammatory drug, has been established.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Catalysis
  • Cyclization
  • Indans / chemical synthesis*
  • Indans / chemistry
  • Molecular Structure
  • Palladium / chemistry*
  • Phosphines / chemistry*
  • Stereoisomerism
  • Sulindac / chemical synthesis*
  • Sulindac / chemistry
  • Sulindac / pharmacology

Substances

  • Indans
  • Phosphines
  • Sulindac
  • Palladium
  • phosphine