Synthesis of stibine SbPhR1R2and their use as ligand in the amidocarbonylation of alkenes with Co2(CO)8as precursor

  • Gómez R
  • Cabrera A
  • Velázquez C
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Abstract

Treatment of bis(1-phenylethynyl)-phenylstibine with 2,4,6-trimethyl magnesium bromide promotes the nucleophilic displacement of one ethynyl group, as was previously reported by Kurita, affording the phenyl (1-phenylethynyl)mesitylstibine. This antimony compound was used as a ligand in order to modify the Co2(CO)8catalytic system for the amidocarbonylation (Wakamatsu reaction) of cyclohexene, cyclopentene, 1-hexene, and 1-pentene. This new modified catalytic system is capable of affording moderate yields of N-acetyl-α-aminoacids. © 2007 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Amidocarbonylation
  • Antimony
  • Homogeneous catalysis
  • Stibine ligands
  • Wakamatsu reaction

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Authors

  • Rosa Maria Gómez

  • Armando Cabrera

  • Claudia García Velázquez

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