Diels-Alder approach to biaryls (DAB): importance of the ortho-nitro moiety in the [4 + 2] cycloaddition

Org Biomol Chem. 2008 Jan 21;6(2):255-7. doi: 10.1039/b714893c. Epub 2007 Nov 27.

Abstract

A series of nitrophenyl acetylenes were evaluated for their utility in a cycloaddition-cycloreversion approach to polysubstituted biaryls. ortho-Nitrophenyl acetylene consistently provided the target biaryls in superior yields as compared to the meta and para nitro substituted variants.

Publication types

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

MeSH terms

  • Alkynes / chemistry*
  • Biphenyl Compounds / chemical synthesis*
  • Biphenyl Compounds / chemistry
  • Cyclization
  • Molecular Structure
  • Nitro Compounds / chemistry*
  • Stereoisomerism

Substances

  • Alkynes
  • Biphenyl Compounds
  • Nitro Compounds
  • ortho-nitrophenylacetylene