One-pot, large-scale synthesis of Nickel(II) complexes derived from 2-[N-(alpha-picolyl)amino]benzophenone (PABP) and alpha- or beta-amino acids

J Org Chem. 2007 Nov 9;72(23):8932-4. doi: 10.1021/jo071011e. Epub 2007 Oct 19.

Abstract

A one-pot, large-scale procedure for preparing the Belokon-Soloshonok nucleophilic glycine equivalent 2-[N-(alpha-picolyl)amino]benzophenone (PABP) derived Ni(II) complex [GlyNi(II)PABP] is described. It has been accomplished by using isobutyl chloroformate to form PABP and then NaH/KOH as mixed bases to afford the corresponding complexes in a one-pot manner (up to an overall yield of 98%). The potential of this method for preparation of beta-amino acids derivatives, such as beta-AlaNi(II)PABP and beta-PheNi(II)PABP, has been demonstrated. The structure of beta-AlaNi(II)PABP is characterized by single-crystal X-ray diffraction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids / chemistry*
  • Benzophenones / chemistry*
  • Combinatorial Chemistry Techniques
  • Crystallography, X-Ray
  • Models, Molecular
  • Molecular Structure
  • Nickel / chemistry*
  • Organometallic Compounds / chemical synthesis*
  • Organometallic Compounds / chemistry
  • Stereoisomerism

Substances

  • 2-(N-(alpha-picolyl)amino)benzophenone
  • Amino Acids
  • Benzophenones
  • Organometallic Compounds
  • Nickel