Preparation of 2-alkyl-1,4-naphthoquinones
Abstract
The reaction of 2,3-dichloro-1,4-naphthoquinone with organo aluminium, zinc, zirconium, or tin reagents yields 2-alkyl-3-chloro-1,4-naphthoquinones; with Zr or Sn reagents, palladium or nickel catalyst is needed.