Anion relay chemistry: an effective tactic for diversity oriented synthesis
1Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, USA. smithab@sas.upenn.edu
A novel one-flask method uses anion relay chemistry (ARC) for efficient linchpin coupling. This process enables sequential reactions with epoxides and electrophiles, creating complex molecules in a single step.
Area of Science:
- Organic Chemistry
- Synthetic Methodology
Background:
- Multicomponent reactions offer efficient synthetic routes.
- Anion relay chemistry provides a pathway for sequential functionalization.
Purpose of the Study:
- To develop a one-flask multicomponent linchpin coupling protocol.
- To leverage anion relay chemistry for novel synthetic transformations.
Main Methods:
- Addition of an anion to a functionalized epoxide.
- Induction of a 1,4-Brook rearrangement using polar solvents.
- Subsequent reaction of the generated anion with electrophiles.
Main Results:
- Successful development of a one-flask protocol.
- Demonstration of sequential anion reactivity.
- Formation of complex molecular architectures.
Conclusions:
- The developed protocol is effective for linchpin coupling.
- Anion relay chemistry is a powerful tool for synthetic chemists.
- This method expands the scope of multicomponent reactions.
Related Concept Videos
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Cycloaddition Reactions: Overview
Preparation of 1° Amines: Azide Synthesis
Azide ions act as good nucleophiles and react with unhindered alkyl halides to form alkyl azides. Alkyl azides do not participate in further nucleophilic substitution reactions, thereby eliminating the chances of polyalkylated products. Alkyl azides are reduced by hydride-based reducing agents, like lithium aluminum...
Preparation of Amines: Reductive Amination of Aldehydes and Ketones
Preparation of 1° Amines: Gabriel Synthesis
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Preparation of 1° Amines: Hofmann and Curtius Rearrangement Mechanism


