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Radical reactions can occur either intermolecularly or intramolecularly. In an intermolecular radical reaction, a nucleophilic radical adds to an electrophilic alkene or vice versa. In such reactions, the radical and generally the alkene, which is also called the radical trap, are two different molecules. Additionally, for such intermolecular reactions to occur, the radical trap must be active, present in an excess concentration, and the radical starting material must have a weak...
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Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
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Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
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Crossed aldol addition is the reaction between two different carbonyl compounds under acidic or basic conditions. Here, both the carbonyl compounds function as nucleophiles and electrophiles. As shown in Figure 1, such a reaction yields a mixture of products, two of which are formed via self-condensation, while the remaining two are formed via crossed-condensation. Without adjustment, the reaction's usefulness in organic chemistry is decreased.
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Recent Developments in Intermolecular Cross-Rauhut-Currier Reactions.

Subhankar Biswas1, Nimisha Bania1, Subhas Chandra Pan1

  • 1Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India, 781039.

Chemical Record (New York, N.Y.)
|January 27, 2023
PubMed
Summary

Recent intermolecular cross Rauhut-Currier reactions are crucial for synthesizing complex molecules. This review covers recent advancements using achiral and chiral catalysts, detailing reaction mechanisms and applications.

Keywords:
Rauhut-Currier reactiondiastereoselectivityenantioselectivityintermolecularorganocatalysis

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Area of Science:

  • Organic Chemistry
  • Catalysis

Background:

  • Intermolecular cross Rauhut-Currier reactions are increasingly important in synthetic chemistry.
  • These reactions are known for producing complex molecular structures with high selectivity.

Purpose of the Study:

  • To review recent developments in intermolecular cross Rauhut-Currier reactions.
  • To highlight the use of both achiral and chiral catalysts.
  • To present detailed mechanistic studies.

Main Methods:

  • Literature review of recent publications (current years).
  • Analysis of reactions employing achiral and chiral catalysts.
  • Examination of mechanistic studies.

Main Results:

  • Recent advancements in intermolecular cross Rauhut-Currier reactions are summarized.
  • The utility of various catalysts in achieving regio- and stereo-selectivity is demonstrated.
  • Mechanistic insights into these transformations are provided.

Conclusions:

  • Intermolecular cross Rauhut-Currier reactions offer versatile routes to valuable compounds.
  • Catalyst development continues to enhance selectivity and efficiency.
  • Further mechanistic understanding will aid in designing novel synthetic strategies.