Dendritic phosphonates and the in situ assembly of polyperoxophosphotungstates: Synthesis and catalytic epoxidation of alkenes with hydrogen peroxide

Maxym V. Vasylyev, Didier Astruc, Ronny Neumann

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

First and second-generation rigid dendrimers based on polyphenylated tetrahedral adamantane cores with four or sixteen peripheral phosphonate moieties, PD1 and PD2, respectively, were synthesized and characterized. Further reaction of the dendritic phosphonates with tungstic acid in the presence of hydrogen peroxide led to the stepwise in situ formation of mono- and dinuclear phosphoperoxotungstates. These assemblies were effective catalysts for the epoxidation of alkenes in an aqueous acetonitrile solvent.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalAdvanced Synthesis and Catalysis
Volume347
Issue number1
DOIs
Publication statusPublished - Jan 2005

Fingerprint

Organophosphonates
Epoxidation
Dendrimers
Alkenes
Acetonitrile
Hydrogen peroxide
Hydrogen Peroxide
Olefins
Adamantane
Catalysts
Acids
tungstic(VI) acid
acetonitrile

Keywords

  • Catalysis
  • Dendrimer
  • Oxidation
  • Phosphonates
  • Polyoxometalates

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Organic Chemistry
  • Catalysis

Cite this

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T1 - Dendritic phosphonates and the in situ assembly of polyperoxophosphotungstates

T2 - Synthesis and catalytic epoxidation of alkenes with hydrogen peroxide

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AU - Astruc, Didier

AU - Neumann, Ronny

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N2 - First and second-generation rigid dendrimers based on polyphenylated tetrahedral adamantane cores with four or sixteen peripheral phosphonate moieties, PD1 and PD2, respectively, were synthesized and characterized. Further reaction of the dendritic phosphonates with tungstic acid in the presence of hydrogen peroxide led to the stepwise in situ formation of mono- and dinuclear phosphoperoxotungstates. These assemblies were effective catalysts for the epoxidation of alkenes in an aqueous acetonitrile solvent.

AB - First and second-generation rigid dendrimers based on polyphenylated tetrahedral adamantane cores with four or sixteen peripheral phosphonate moieties, PD1 and PD2, respectively, were synthesized and characterized. Further reaction of the dendritic phosphonates with tungstic acid in the presence of hydrogen peroxide led to the stepwise in situ formation of mono- and dinuclear phosphoperoxotungstates. These assemblies were effective catalysts for the epoxidation of alkenes in an aqueous acetonitrile solvent.

KW - Catalysis

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KW - Oxidation

KW - Phosphonates

KW - Polyoxometalates

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