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When gold can do what iodine cannot do: A critical comparison.

Sara Hummel1, Stefan F Kirsch

  • 1Department Chemie and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany.

Beilstein Journal of Organic Chemistry
|August 2, 2011
PubMed
Summary
This summary is machine-generated.

Gold catalysis is dynamic in organic synthesis. This review compares gold catalysis with iodonium activation, showing they can create identical products or diverse structures from similar starting materials.

Keywords:
catalysiscycloisomerizationsdomino reactionsgoldiodine

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Area of Science:

  • Organic synthesis
  • Catalysis

Background:

  • Gold catalysis is a rapidly advancing field in organic synthesis.
  • Domino processes, often catalyzed by gold, are increasingly important.
  • Iodine electrophiles are emerging as alternatives to gold catalysts in certain reactions.

Purpose of the Study:

  • To compare the synthetic utility of gold catalysis and iodonium activation.
  • To highlight cases where iodonium activation mimics gold-catalyzed reactions.
  • To explore how different activation methods lead to varied product scaffolds.

Main Methods:

  • Review of existing literature on gold-catalyzed domino processes.
  • Analysis of reactions utilizing iodine electrophiles as catalysts.
  • Comparative study of product scaffolds generated by gold versus iodonium activation.

Main Results:

  • Iodonium activation can successfully replicate gold-catalyzed reactions, yielding identical product scaffolds.
  • Identical starting materials can be transformed into diverse molecular frameworks based on the chosen activation method (gold vs. iodonium).
  • This highlights the versatility and complementary nature of both catalytic systems.

Conclusions:

  • Iodonium activation presents a viable alternative to gold catalysis in specific synthetic transformations.
  • The choice between gold and iodonium activation offers strategic control over synthetic outcomes.
  • Both methods contribute significantly to the construction of complex molecular architectures in organic synthesis.