Functional-group-tolerant, nickel-catalyzed cross-coupling reaction for enantioselective construction of tertiary methyl-bearing stereocenters

J Am Chem Soc. 2013 Jun 19;135(24):9083-90. doi: 10.1021/ja4034999. Epub 2013 Jun 10.

Abstract

The first Negishi nickel-catalyzed stereospecific cross-coupling reaction of secondary benzylic esters is reported. A series of traceless directing groups is evaluated for ability to promote cross-coupling with dimethylzinc. Esters with a chelating thioether derived from commercially available 2-(methylthio)acetic acid are most effective. The products are formed in high yield and with excellent stereospecificity. A variety of functional groups are tolerated in the reaction including alkenes, alkynes, esters, amines, imides, and O-, S-, and N-heterocycles. The utility of this transformation is highlighted in the enantioselective synthesis of a retinoic acid receptor agonist and a fatty acid amide hydrolase inhibitor.

Publication types

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

MeSH terms

  • Benzene Derivatives / chemistry*
  • Catalysis
  • Esters / chemistry
  • Methylation
  • Nickel / chemistry*
  • Stereoisomerism

Substances

  • Benzene Derivatives
  • Esters
  • Nickel