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Permeable Self-Assembled Molecular Containers for Catalyst Isolation Enabling Two-Step Cascade Reactions.

Yoshihiro Ueda¹, Hiroaki Ito¹, Daishi Fujita¹

¹Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

Journal of the American Chemical Society

|April 13, 2017

Summary

A novel one-pot cascade reaction protocol simplifies organic synthesis using M12L24 self-assembled complexes as catalyst carriers. This method enables continuous transformations with incompatible catalysts, offering a scalable and predictable approach.

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Area of Science:

Supramolecular Chemistry
Organic Synthesis
Catalysis

Background:

Multistep organic synthesis is often laborious and inefficient.
Developing one-pot cascade reactions can significantly streamline synthetic processes.
Catalyst immobilization is crucial for enabling continuous flow chemistry.

Purpose of the Study:

To establish a general one-pot cascade reaction protocol.
To utilize M12L24 self-assembled complexes as catalyst carriers.
To demonstrate a stereoselective cascade reaction involving incompatible catalysts.

Main Methods:

Employing M12L24 self-assembled complexes for catalyst immobilization.
Designing a one-pot cascade reaction integrating allylic oxidation and Diels-Alder cyclization.
Investigating the catalytic activity and selectivity of the system.

Main Results:

Successfully demonstrated a stereoselective cascade reaction in a one-pot format.
M12L24 complexes effectively served as carriers for incompatible catalysts.
The developed protocol showed advantages in availability, scalability, and predictability.

Conclusions:

M12L24 self-assembled complexes are suitable for developing continuous chemical transformations.
The one-pot cascade reaction protocol offers an efficient and streamlined approach to complex organic synthesis.
This strategy provides a scalable and predictable platform for future catalytic applications.